All 4254 snake species
By family, A-Z. Tap one for its photo, map and facts.
Snakes by country
- Afghanistan 33
- Albania 10
- Algeria 22
- American Samoa 2
- Andorra 3
- Angola 140
- Anguilla 1
- Antigua and Barbuda 1
- Argentina 130
- Armenia 17
- Aruba 2
- Australia 212
- Austria 8
- Azerbaijan 20
- Bahamas 13
- Bahrain 1
- Bangladesh 74
- Barbados 2
- Belarus 3
- Belgium 4
- Belize 64
- Benin 97
- Bhutan 73
- Bolivia 166
- Bosnia and Herzegovina 4
- Botswana 69
- Brazil 416
- British Virgin Islands 3
- Brunei 12
- Bulgaria 14
- Burkina Faso 54
- Burundi 40
- Cambodia 80
- Cameroon 164
- Canada 24
- Cayman Islands 2
- Central African Republic 134
- Chad 71
- Chile 5
- China 274
- Colombia 296
- Comoros 4
- Costa Rica 145
- Crimea 6
- Croatia 11
- Cuba 46
- Curaçao 1
- Cyprus 11
- Czechia 3
- Democratic Republic of the Congo 197
- Denmark 2
- Djibouti 9
- Dominica 4
- Dominican Republic 27
- Ecuador 238
- Egypt 30
- El Salvador 70
- Equatorial Guinea 62
- Eritrea 36
- Estonia 2
- Eswatini 57
- Ethiopia 103
- Fiji 5
- Finland 3
- France 22
- French Guiana 84
- Gabon 82
- Gambia 49
- Gaza Strip 2
- Georgia 16
- Germany 13
- Ghana 114
- Gibraltar 7
- Greece 15
- Grenada 3
- Guam 2
- Guatemala 143
- Guinea 124
- Guinea-Bissau 38
- Guyana 82
- Haiti 28
- Honduras 146
- Hungary 7
- India 350
- Indonesia 345
- Iran 76
- Iraq 33
- Ireland 4
- Israel 45
- Italy 21
- Ivory Coast 105
- Jamaica 10
- Japan 36
- Jersey 1
- Jordan 35
- Kazakhstan 13
- Kenya 148
- Kosovo 8
- Kuwait 5
- Kyrgyzstan 9
- Laos 88
- Latvia 3
- Lebanon 19
- Lesotho 21
- Liberia 68
- Libya 16
- Liechtenstein 3
- Lithuania 3
- Luxembourg 2
- Madagascar 98
- Malawi 121
- Malaysia 198
- Maldives 2
- Mali 64
- Malta 4
- Mauritania 33
- Mauritius 4
- Mexico 430
- Moldova 3
- Monaco 3
- Mongolia 9
- Montenegro 9
- Montserrat 1
- Morocco 20
- Mozambique 100
- Myanmar 176
- Namibia 86
- Nepal 73
- Netherlands 5
- New Caledonia 12
- New Zealand 1
- Nicaragua 107
- Niger 50
- Nigeria 123
- North Korea 2
- North Macedonia 9
- Northern Mariana Islands 1
- Norway 3
- Oman 24
- Pakistan 75
- Palau 4
- Panama 150
- Papua New Guinea 117
- Paraguay 104
- Peru 218
- Philippines 113
- Poland 3
- Portugal 11
- Puerto Rico 7
- Qatar 6
- Republic of the Congo 65
- Romania 8
- Russia 31
- Rwanda 56
- Saint Barthélemy 1
- Saint Lucia 3
- Saint Martin 1
- Saint Vincent and the Grenadines 3
- Samoa 2
- San Marino 5
- Sao Tome and Principe 4
- Saudi Arabia 32
- Senegal 69
- Serbia 10
- Seychelles 4
- Sierra Leone 67
- Singapore 51
- Sint Maarten 1
- Slovakia 2
- Slovenia 7
- Solomon Islands 16
- Somalia 98
- South Africa 124
- South Korea 6
- South Sudan 124
- Southern Kuril Islands 3
- Spain 16
- Sri Lanka 106
- Sudan 80
- Suriname 85
- Sweden 3
- Switzerland 9
- Syria 32
- Taiwan 57
- Tajikistan 13
- Tanzania 174
- Thailand 214
- Timor-Leste 10
- Togo 93
- Tonga 1
- Trinidad and Tobago 33
- Tunisia 14
- Turkey 48
- Turkmenistan 20
- Turks and Caicos Islands 2
- US Virgin Islands 4
- Uganda 119
- Ukraine 11
- United Arab Emirates 17
- United Kingdom 5
- United States 193
- Uruguay 34
- Uzbekistan 16
- Vanuatu 5
- Vatican City 1
- Venezuela 168
- Vietnam 225
- Yemen 26
- Zambia 111
- Zimbabwe 94
Snake families
- Acrochordidae 5
- Aniliidae 6
- Anomalepididae 22
- Anomochilidae 3
- Atractaspididae 72
- Boidae 115
- Bolyeriidae 2
- Colubridae 2185
- Cylindrophiidae 16
- Dipsadidae 2
- Elapidae 406
- Gerrhopilidae 29
- Homalopsidae 56
- Lamprophiidae 89
- Leptotyphlopidae 146
- Loxocemidae 1
- Pareidae 42
- Prosymnidae 18
- Psammophiidae 58
- Pseudaspididae 4
- Pseudoxyrhophiidae 93
- Pythonidae 46
- Tropidophiidae 41
- Typhlopidae 281
- Uropeltidae 65
- Viperidae 414
- Xenodermidae 32
- Xenopeltidae 2
- Xenophidiidae 2
- Xenotyphlopidae 1
Acrochordidae 5
- Acrochordus dehmi
- Acrochordus dubius
- Filesnake Acrochordus arafurae
- Javan File Snake Acrochordus javanicus
- Wart Snake Acrochordus granulatus
Aniliidae 6
Anomalepididae 22
- Alagoas Blind Snake Liotyphlops trefauti
- Bonda Blind Snake Liotyphlops bondensis
- Colombian Blind Snake Anomalepis colombia
- Cope's Blind Snake Liotyphlops anops
- Costa Rica Blind Snake Helminthophis frontalis
- Cundinamarca Blind Snake Liotyphlops argaleus
- Ecuador Blind Snake Anomalepis flavapices
- Liotyphlops beui
- Liotyphlops sousai
- Mexican Blind Snake Anomalepis mexicana
- Palau's Blind Snake Liotyphlops palauophis
- Preocular Blind Snake Helminthophis praeocularis
- Sao Paulo Blind Snake Liotyphlops schubarti
- Southern Colombian Blind Snake Liotyphlops haadi
- São Sebastião Blind Snake Liotyphlops caissara
- Taylor's Mato Grosso Blind Snake Liotyphlops taylori
- Taylor's Peru Blind Snake Anomalepis aspinosus
- Ternetz's Blind Snake Liotyphlops ternetzii
- Trinidad Blind Snake Typhlophis squamosus
- Whitenose Blind Snake Liotyphlops albirostris
- Wilder's Blind Snake Liotyphlops wilderi
- Yellowtail Blind Snake Helminthophis flavoterminatus
Anomochilidae 3
- Kinabalu Giant Blind Snake Anomochilus monticola
- Leonard's Pipe Snake Anomochilus leonardi
- Weber's Cylinder Snake Anomochilus weberi
Atractaspididae 72
- African Bighead Snake Hypoptophis wilsonii
- African Snake-eater Polemon fulvicollis
- Arabian Small-Scaled Burrowing Asp Atractaspis andersonii
- Battersby's Mole Viper Atractaspis battersbyi
- Beaked Burrowing Asp Atractaspis duerdeni
- Bibron's Burrowing Asp Atractaspis bibronii
- Black Centipede Eater Aparallactus guentheri
- Black Centipede-eater Aparallactus niger
- Black Snake-eater Polemon ater
- Black-headed Micrelaps Micrelaps vaillanti
- Bocourt's Snake-eater Polemon bocourti
- Boulenger's Mole Viper Atractaspis boulengeri
- Branch's Burrowing Asp Atractaspis branchi
- Butler's Two-headed Snake Chilorhinophis butleri
- Cameroon Racer Poecilopholis cameronensis
- Cameroon Snake-Eater Polemon notatus
- Cameroon Snake-eater Polemon griseiceps
- Cape Centipede Eater Aparallactus capensis
- Collared Snake-eater Polemon collaris
- Common Purple-glossed Snake Amblyodipsas polylepis
- Congo Burrowing Asp Atractaspis congica
- Congo Two-headed Snake Chilorhinophis gerardi
- Dull Purple-glossed Snake Amblyodipsas unicolor
- Eastern Purple-glossed Snake Amblyodipsas microphthalma
- Eastern Snake-eater Polemon christyi
- Elongate Quill-snouted Snake Xenocalamus mechowii
- Engdahl's Mole Viper Atractaspis engdahli
- Gabon Snake-eater Polemon gabonensis
- Graceful Snake-eater Polemon gracilis
- Grauer’s Snake-eater Polemon graueri
- Guinea Snake-eater Polemon barthii
- Israeli Mole Viper Atractaspis engaddensis
- Ivory Coast Snake-eater Polemon neuwiedi
- Jackson's Centipede-eater Aparallactus jacksonii
- Kalahari Purple-glossed Snake Amblyodipsas ventrimaculata
- Katanga Purple-glossed Snake Amblyodipsas katangensis
- Kenya Two-headed Snake Micrelaps bicoloratus
- Lined Centipede-eater Aparallactus lineatus
- Magretti’s Burrowing Asp Atractaspis magrettii
- Malindi Centipede-eater Aparallactus turneri
- Michell's Quill-snouted Snake Xenocalamus michelli
- Mole Viper (aterrima) Atractaspis aterrima
- Mole Viper (corpulenta) Atractaspis corpulenta
- Mole Viper (dahomeyensis) Atractaspis dahomeyensis
- Mole Viper (reticulata) Atractaspis reticulata
- Mozambique Centipede Eater Aparallactus nigriceps
- Mpwapwa Purple-glossed Snake Amblyodipsas dimidiata
- Muller's Snake (muelleri) Micrelaps muelleri
- Natal Black Snake Macrelaps microlepidotus
- Natal Purple-glossed Snake Amblyodipsas concolor
- Ogaden Burrowing Asp Atractaspis leucomelas
- Peters' Burrowing Asp Atractaspis fallax
- Phillips' Burrowing Asp Atractaspis phillipsi
- Plumbeous Centipede Eater Aparallactus lunulatus
- Reinhardt's Snake-eater Polemon acanthias
- Revoil's Short Snake Brachyophis revoili
- Rodhain's Purple-glossed Snake Amblyodipsas rodhaini
- Sabi Quill-snouted Snake Xenocalamus sabiensis
- Sahelian Burrowing Asp Atractaspis micropholis
- Slender Quill-snouted Snake Xenocalamus bicolor
- Small-Scaled Burrowing Asp Atractaspis microlepidota
- Somali Burrowing Asp Atractaspis scorteccii
- Spotted Harlequin Snake Homoroselaps lacteus
- Striped Harlequin Snake Homoroselaps dorsalis
- Teitana Purple-glossed Snake Amblyodipsas teitana
- Transvaal Quillsnout Snake Xenocalamus transvaalensis
- Usambara Centipede-eater Aparallactus werneri
- Variable Burrowing Asp Atractaspis irregularis
- Watson's Burrowing Asp Atractaspis watsoni
- Western Forest Centipede-eater Aparallactus modestus
- Zaire Centipede-eater Aparallactus moeruensis
- Zaire Snake-eater Polemon robustus
Boidae 115
- Amazon Tree Boa Corallus hortulana
- Anilioides minuatos
- Anilioides nebraskensis
- Aphelophis talpivorus
- Arabian Sand Boa Eryx jayakari
- Argentinian Rainbow Boa Epicrates alvarezi
- Australiasis amethystinus
- Bates' Tree Boa Corallus batesii
- Bavarioboa bachensis
- Bavarioboa crocheti
- Bavarioboa hermi
- Bavarioboa herrlingensis
- Bavarioboa minuta
- Bavarioboa ultima
- Bavarioboa vaylatsae
- Beni Anaconda Eunectes beniensis
- Bibron's Pacific Boa Candoia bibroni
- Biji Sand Boa Eryx borrii
- Blomber’s Tree Boa Corallus blombergi
- Boa Constrictor Boa constrictor
- Boa fasciata
- Boa palpebrosa
- Bransateryx vireti
- Brown Rainbow Boa Epicrates maurus
- Cadurceryx filholi
- Cadurceryx pearchi
- Calabar Ground Python Calabaria reinhardtii
- Campina Grande Rainbow Boa Epicrates assisi
- Central Asian Sand Boa Eryx elegans
- Cheilophis huerfanoensis
- Chiapan Boa Ungaliophis continentalis
- Chubutophis grandis
- Colombian Boa Boa imperator
- Conception Bank Silver Boa Chilabothrus argentum
- Cook's Tree Boa Corallus cookii
- Corallus priscus
- Cropani's Boa Corallus cropanii
- Cuban Boa Chilabothrus angulifer
- Dark Spotted Anaconda Eunectes deschauenseei
- Dominica Boa Boa nebulosa
- Dormilona Corallus ruschenbergerii
- Dumeril's Boa Acrantophis dumerili
- Dwarf Sand Boa Eryx miliaris
- Eastern Rainbow Boa Epicrates crassus
- Eastern Sand Boa Eryx vittatus
- Emerald Tree Boa Corallus caninus
- Eryx primitivus
- Eunectes stirtoni
- Ford’s Boa Chilabothrus fordii
- Fowl Snake Chilabothrus schwartzi
- Geringophis depressus
- Geringophis robustus
- Geringophis vetus
- Geringophis yatkolai
- Green Anaconda Eunectes murinus
- Grenada Tree Boa Corallus grenadensis
- Haitian Boa (striatus) Chilabothrus striatus
- Haitian Boa (strigilatus) Chilabothrus strigilatus
- Hechtophis austrinus
- Hispaniola Boa Chilabothrus gracilis
- Hispaniolan Vine Boa Chilabothrus ampelophis
- Hordleophis balconae
- Jamaican Boa Chilabothrus subflavus
- Lithophis sargenti
- Madagascar Boa Acrantophis madagascariensis
- Messelophis ermannorum
- Messelophis variatus
- Mona Boa Chilabothrus monensis
- Müller’s Sand Boa Eryx muelleri
- Neurodromicus dorsalis
- New Guinea Viper Boa Candoia aspera
- Northern Bahamas Boa Chilabothrus exsul
- Northern Rubber Boa Charina bottae
- Northern Three-lined Boa Lichanura orcutti
- Nosy Komba boa Sanzinia volontany
- Oaxacan Dwarf Boa Exiliboa placata
- Ogmophus arenarum
- Pacific Boa (carinata) Candoia carinata
- Palau Bevel-nosed Boa Candoia superciliosa
- Paleryx cayluxi
- Paleryx depressus
- Paleryx rhombifer
- Panamanian Dwarf Boa Ungaliophis panamensis
- Paraungaliophis pricei
- Patagoniophis australiensis
- Patagoniophis parvus
- Plesiotortrix edwardsi
- Puerto Rican Boa Chilabothrus inornatus
- Rainbow Boa Epicrates cenchria
- Red Sand Boa Eryx johnii
- Ringed Tree Boa Corallus annulatus
- Rionegrophis madtsoioides
- Rosy Boa Lichanura trivirgata
- Rough-tailed Sand Boa Eryx conicus
- Rukwanyoka holmani
- Sand Boa Eryx colubrinus
- Sand Boa (jaculus) Eryx jaculus
- Sanjuanophis froehlichi
- Sanzinia Sanzinia madagascariensis
- Sistan Sand Boa Eryx sistanensis
- Solomon Island Ground Boa Candoia paulsoni
- Somali Sand Boa Eryx somalicus
- Southern Bahamas Boa Chilabothrus chrysogaster
- Southern Rubber Boa Charina umbratica
- Tallahattaophis dunni
- Tet'chien Boa Boa orophias
- Totlandophis americanus
- Totlandophis thomasae
- Tregophis brevirachis
- Virgin Islands Boa Chilabothrus granti
- Waincophis australis
- Waincophis cameratus
- Waincophis pressulus
- Whitaker's Boa Eryx whitakeri
- Yellow Anaconda Eunectes notaeus
Bolyeriidae 2
- Round Island Boa Casarea dussumieri
- Round Island Burrowing Boa Bolyeria multocarinata
Colubridae 2185
- Abor Hills Kukri Snake Oligodon melanozonatus
- Abubaker's Hooded Snake Macroprotodon abubakeri
- Aceh Wolf Snake Lycodon sidiki
- Addur Woodland Snake Aprosdoketophis andreonei
- Aden Kukri Snake Rhynchocalamus arabicus
- Admiralty Islands Groundsnake Stegonotus admiraltiensis
- Adorned Graceful Brown Snake Rhadinaea decorata
- Aesculapian False Coral Snake Erythrolamprus aesculapii
- Aesculapian Snake Zamenis longissimus
- Afar racer Platyceps afarensis
- African Brown Water Snake Afronatrix anoscopus
- African Dwarf Snake Eirenis africanus
- African Shovel-nosed Snake Scaphiophis albopunctatus
- Ahaetulla oxyrhyncha
- Albuquerque Ground Snake Atractus albuquerquei
- Alcala's Reed Snake Calamaria alcalai
- Alcala's Wolf Snake Lycodon alcalai
- Aleman's Snail-eater Plesiodipsas perijanensis
- Algerian Whip Snake Hemorrhois algirus
- Almaden Ground Snake Erythrolamprus almadensis
- Alphonse's Ground Snake Atractus alphonsehogei
- Alsophis sajdaki
- Altos de Pacora Earth Snake Geophis bellus
- Amaral's Ground Snake Caaeteboia amarali
- Amaral's Tropical Racer Mastigodryas amarali
- Amazon Banded Snake Rhinobothryum lentiginosum
- Amazon Basin Tree Snake Imantodes lentiferus
- Amazon Burrowing Snake Apostolepis niceforoi
- Amazon Coastal House Snake Thamnodynastes pallidus
- Amazon False Coral Snake Oxyrhopus rhombifer
- Amazon False Fer-de-lance Xenodon severus
- Amazon Puffing Snake Spilotes sulphureus
- Amazon Tropical Forest Snake Erythrolamprus pygmaeus
- Amazon Water Snake Hydrops martii
- Ameiseophis robinsoni
- American Snail-eater Dipsas articulata
- Amur Ratsnake Elaphe schrenckii
- Andaman Bronze-back Dendrelaphis andamanensis
- Andaman Cat Snake Boiga andamanensis
- Andaman Keelback Fowlea tytleri
- Andaman Wolf Snake Lycodon tiwarii
- Andaman wolf snake Lycodon hypsirhinoides
- Andean Ground Snake Atractus andinus
- Andean Racer Pseudalsophis elegans
- Andean Snail-eater Dipsas andiana
- Anderson's Mountain Keelback Opisthotropis andersonii
- Anderson's Reed Snake Calamaria andersoni
- Andes Centipede Snake Tantilla andinista
- Andrea's Keelback Hebius andreae
- Andreas' Racer Dolichophis andreanus
- Angel's Keelback Rhabdophis angeli
- Angel's Kukri Snake Oligodon macrurus
- Anguilla Racer Alsophis rijgersmaei
- Annam Keelback Hebius annamensis
- Annam Kukri Snake Oligodon annamensis
- Annobon Wood Snake Philothamnus girardi
- Antiguan racer Alsophis antiguae
- Antilles Racer Alsophis antillensis
- Apiaká Keelback Helicops apiaka
- Apostolepis alphonsehogei
- Apostolepis cerradoensis
- Apostolepis collaris
- Apostolepis kikoi
- Apostolepis mariae
- Apostolepis pymi
- Apostolepis underwoodi
- Apreocular Reed Snake Calamaria apraeocularis
- Apte’s slender snake Trachischium apteii
- Apurímac Woodland Racer Drymoluber apurimacensis
- Arabian Cat Snake Telescopus dhara
- Arabian Egg-eater Dasypeltis arabica
- Argentine Pampas Snake Phimophis guerini
- Argus Snail Sucker Sibon argus
- Argyrogena vittacaudata
- Arizona voorhiesi
- Arnaldo's Green Racer Philodryas arnaldoi
- Arrow Ground Snake Erythrolamprus sagittifer
- Aru Island Groundsnake Stegonotus aruensis
- Arunachal Rain Snake Smithophis arunachalensis
- Ashkhabad Dwarf Racer Eirenis medus
- Ashmead's Banded Cat-eyed Snake Leptodeira ashmeadii
- Ashok's Bronzeback Tree Snake Dendrelaphis ashoki
- Ashy Kukri Snake Oligodon cinereus
- Asia Minor Dwarf Racer Eirenis modestus
- Asian Racer Hemorrhois nummifer
- Asian Vine Snake Ahaetulla prasina
- Asiatic Water Snake Trimerodytes aequifasciatus
- Assam Keelback Herpetoreas pealii
- Assam Kukri Snake Oligodon catenatus
- Assam Mountain Snake Plagiopholis nuchalis
- Assamese Cat Snake Boiga quincunciata
- Atahuallpa Saphenophis Snake Saphenophis atahuallpae
- Atlantic Central American Milksnake Lampropeltis polyzona
- Atlantic Forest Racer Dendrophidion atlantica
- Atlantic Forest Snail-eater Dipsas sazimai
- Atlas Ground Snake Atractus atlas
- Atractus aboiporu
- Atractus acheronius
- Atractus akerios
- Atractus altagratiae
- Atractus alytogrammus
- Atractus apophis
- Atractus atratus
- Atractus attenuatus
- Atractus avernus
- Atractus ayeush
- Atractus boimirim
- Atractus boulengerii
- Atractus caete
- Atractus careolepis
- Atractus caxiuana
- Atractus charitoae
- Atractus chthonius
- Atractus dapsilis
- Atractus darienensis
- Atractus depressiocellus
- Atractus echidna
- Atractus edioi
- Atractus eriki
- Atractus franciscopaivai
- Atractus francoi
- Atractus heliobelluomini
- Atractus heyeri
- Atractus hoogmoedi
- Atractus hostilitractus
- Atractus imperfectus
- Atractus insipidus
- Atractus macondo
- Atractus matthewi
- Atractus medusa
- Atractus meridensis
- Atractus micheleae
- Atractus mijaresi
- Atractus multidentatus
- Atractus nasutus
- Atractus natans
- Atractus nawa
- Atractus ochrosetrus
- Atractus orcesi
- Atractus pachacamac
- Atractus paisa
- Atractus pantostictus
- Atractus paulus
- Atractus potschi
- Atractus ronnie
- Atractus spinalis
- Atractus steyermarki
- Atractus stygius
- Atractus surucucu
- Atractus tamaensis
- Atractus tamessari
- Atractus taphorni
- Atractus tartarus
- Atractus titanicus
- Atractus touzeti
- Atractus trefauti
- Atractus turikensis
- Atractus ukupacha
- Atractus vittatus
- Atractus zebrinus
- Awl-headed Snake Lytorhynchus diadema
- Ayamaru Groundsnake Stegonotus ayamaru
- Ayerbes’ snail-eater Sibon ayerbeorum
- Babongan Kukri Snake Oligodon pulcherrimus
- Bahamian Racer (fuscicauda) Cubophis fuscicauda
- Bahia Black-naped Snake Amnesteophis melanauchen
- Baird's Black-headed Snake Tantilla bairdi
- Baird's Patchnose Snake Salvadora bairdi
- Baird's Rat Snake Pantherophis bairdi
- Baja California Coachwhip Masticophis fuliginosus
- Baja California Lyre Snake Trimorphodon lyrophanes
- Baja California Night Snake Hypsiglena slevini
- Baja California Rat Snake Bogertophis rosaliae
- Baker's Cat-eyed Snake Leptodeira bakeri
- Balkan Whip Snake Hierophis gemonensis
- Bamboo Snake Pseudoxenodon bambusicola
- Banded Bronzeback Dendrelaphis striatus
- Banded Cat Snake Boiga saengsomi
- Banded Cat-eyed Snake (annulata) Leptodeira annulata
- Banded Centipede Snake Tantilla supracincta
- Banded Galapagos Snake Pseudalsophis slevini
- Banded Ground Snake Atractus multicinctus
- Banded Hognose Snake Xenodon pulcher
- Banded Kukri Oligodon arnensis
- Banded Pampas Snake Phimophis vittatus
- Banded Racer (fasciolata) Argyrogena fasciolata
- Banded Racer (fasciolatus) Lycodon fasciolatus
- Banded Sand Snake (cincta) Sonora cincta
- Banded Sand Snake (fasciata) Sonora fasciata
- Banded Snail Sucker Tropidodipsas fasciata
- Banded Wolf Snake Lycodon fasciatus
- Banggai Reed Snake Calamaria banggaiensis
- Bangweulu Water Snake Limnophis bangweolicus
- Banks' Wolf Snake Lycodon banksi
- Bar-necked Keelback Fowlea schnurrenbergeri
- Baram False Cobra Pseudoxenodon baramensis
- Baran Dwarf Racer Eirenis barani
- Baran's Dwarf Snake Muhtarophis barani
- Barbour's Centipede Snake Tantilla albiceps
- Barbour's Tropical Ground Snake Trimetopon barbouri
- Barbour's Tropical Racer Mastigodryas bruesi
- Barbour's Water Snake Rhabdophis barbouri
- Barnes’s Cat Snake Boiga barnesii
- Baron's Green Racer Philodryas baroni
- Barotse Water Snake Crotaphopeltis barotseensis
- Barred Forest Racer Dendrophidion vinitor
- Barred Keelback Tropidonophis doriae
- Barred Kukri Snake Oligodon signatus
- Barred Wolf Snake Lycodon striatus
- Barreras Fanged Snake Ialtris agyrtes
- Barron's Kukri Snake Oligodon barroni
- Basin Ground Snake Atractus poeppigi
- Bassler's Snake Eutrachelophis bassleri
- Batjan Frog-eating Snake Stegonotus batjanensis
- Batjan Iridescent Snake Calamorhabdium kuekenthali
- Battersby's Green Snake Philothamnus battersbyi
- Battersby's Reed Snake Calamaria battersbyi
- Bavi Keelback Rhabdophis callichroma
- Beaked Blackhead Apostolepis vittata
- Beautiful calico snake Oxyrhopus formosus
- Beautiful Cat Snake Telescopus pulcher
- Beddome's Cat Snake Boiga beddomei
- Bella Rat Snake Archelaphe bella
- Bengkulu Cat Snake Boiga bengkuluensis
- Bengkulu Reed Snake Calamaria alidae
- Benito Juarez's Earth Snake Geophis juarezi
- Bequaert's Green Snake Philothamnus bequaerti
- Betanien Earth Snake Geophis betaniensis
- Bev Ridgely’s Snail-Eater Sibon bevridgelyi
- Bibron's False Coral Snake Oxyrhopus doliatus
- Bicolored Shadow Snake Synophis bicolor
- Bicolored Swamp Snake Limnophis bicolor
- Bicoloured Reed Snake Calamaria bicolor
- Big Bend Blackhead Snake Tantilla cucullata
- Big Bend Patchnose Snake Salvadora deserticola
- Big Ground Snake Atractus major
- big-eyed tree snake Dendrelaphis macrops
- Big-tooth Snake Lycodon flavozonatus
- Bignose Ground Snake Atractus obtusirostris
- Bindee keelback Rhabdophis bindi
- Binh’s Bronzeback Snake Dendrelaphis binhi
- Bismark Ground Snake Stegonotus heterurus
- Bismark Keelback Tropidonophis hypomelas
- Black Banded Snake Coniophanes melanocephalus
- Black Centipede Snake Tantilla nigra
- Black False Boa Pseudoboa nigra
- Black Forest Racer Drymobius melanotropis
- Black Ground Snake Atractus elaps
- Black Kingsnake Lampropeltis nigra
- Black Milksnake Lampropeltis micropholis
- Black Racer Hypsirhynchus ater
- Black Rat Snake Pantherophis obsoletus
- Black Snake Cubophis caymanus
- Black Swampsnake Liodytes pygaea
- Black Tree Snake (occidentalis) Thrasops occidentalis
- Black-banded Cat-eyed Snake Leptodeira nigrofasciata
- Black-banded Earth Snake Geophis nigrocinctus
- Black-banded Snake Scolecophis atrocinctus
- Black-collared Snake Drepanoides anomalus
- Black-headed Cat Snake Boiga nigriceps
- Black-headed Ground Snake Atractus nigricauda
- Black-headed Smooth Snake Meizodon plumbiceps
- Black-headed Snake (melanocephala) Tantilla melanocephala
- Black-headed Snake (melanocephalus) Rhynchocalamus melanocephalus
- Black-headed Snake (nigriceps) Telescopus nigriceps
- Black-lined Green Snake Hapsidophrys lineatus
- Black-lipped groundsnake Stegonotus melanolabiatus
- Black-striped Rat Snake Ptyas dhumnades
- Black-striped Snake (imperialis) Coniophanes imperialis
- Black-striped Snake (taeniata) Coniophanes taeniata
- Black-ventered Ground Snake Atractus nigriventris
- Blackbelly Centipede Snake Tantilla moesta
- Blackbelly Garter Snake Thamnophis melanogaster
- Blackbelly Ground Snake Atractus melanogaster
- Blackbelly Snake Hydraethiops melanogaster
- Blackbelly Worm-eating Snake Trachischium fuscum
- Blackneck Garter Snake Thamnophis cyrtopsis
- Blakeway's Mountain Snake Plagiopholis blakewayi
- Blanchard's Earth Snake Geophis blanchardi
- Blandings Tree Snake Toxicodryas blandingii
- Blanford's Bridal Snake Lycodon davisonii
- Bleek's Kukri Snake Oligodon waandersi
- Bleeker's Dwarf Snake Calamaria margaritophora
- Blood Snake Stenorrhina freminvillei
- Bloody Ground Snake Atractus sanguineus
- Blossom Krait Rhabdophis ceylonensis
- Blotched Hooknose Snake Ficimia publia
- Blue Flanked Leaf Litter Snake Echinanthera cyanopleura
- Blue Nile Cat Snake Telescopus gezirae
- Blue-eyed Bush Rat Snake Gonyosoma coeruleum
- Blue-necked Keelback Rhabdophis rhodomelas
- Bluebelly Java Snake Tetralepis fruhstorferi
- Bluebelly Kukri Snake Oligodon melaneus
- Blyth's Reticulate Snake Blythia reticulata
- Blythia hmuifang
- Bock's Ground Snake Atractus bocki
- Bocourt's Black-headed Snake Tantilla bocourti
- Bocourt's Ground Snake Atractus bocourti
- Bocourt's Snail-eater Dipsas viguieri
- Boddaert's Tropical Racer Mastigodryas boddaerti
- Boehme's Wolf Snake Lycodon synaptor
- Boeseman's Reed Snake Calamaria boesemani
- Boettger's Keelback Rhabdophis callistus
- Boettger's Sipo Chironius flavolineatus
- Bogert's Shadow Snake Synophis bogerti
- Boie's Dwarf Snake Calamaria virgulata
- Boie's Ground Snake Atractus badius
- Boie's Keelback Rhabdophis spilogaster
- Boie's Kukri Snake Oligodon bitorquatus
- Boie's Many-Tooth Snake Sibynophis geminatus
- Boie's Rough-sided Snake Aspidura brachyorrhos
- Boiga multiocellata
- Boiga whitakeri
- Boiruna sertaneja
- Bolivian Burrowing Snake Apostolepis dorbignyi
- Bolivian Racer Philodryas boliviana
- Bolivian Tree Snake Dipsas turgida
- Boomslang Dispholidus typus
- Boonsong's Keelback Isanophis boonsongi
- Bornean Black Snake Stegonotus borneensis
- Bornean Reed Snake Calamaria borneensis
- Borrelli's Burrowing Snake Apostolepis borellii
- Boulenger's Bronzeback Dendrelaphis bifrenalis
- Boulenger's Centipede Snake Tantilla alticola
- Boulenger's False Coral Snake Oxyrhopus marcapatae
- Boulenger's Keelback Hebius boulengeri
- Boulenger's Keelback (asperrimus) Fowlea asperrimus
- Boulenger's Slender Snake Tachymenis affinis
- Boulenger's Tree Snake Dipsas ventrimaculata
- Bourret's Cat Snake Boiga bourreti
- Bozanti Dwarf Racer Eirenis aurolineatus
- Brahui Racer Platyceps noeli
- Braid Snake Platyceps ladacensis
- Braided Shadow Snake Synophis plectovertebralis
- Brazilian Bird Snake Rhachidelus brazili
- Brazilian Burrowing Snake Gomesophis brasiliensis
- Brazilian False Coral Snake Oxyrhopus trigeminus
- Brazilian Green Racer Philodryas aestiva
- Brazilian Keelback Helicops infrataeniatus
- Brazilian Mussurana Mussurana quimi
- Brazilian Sipo Chironius laevicollis
- Brazilian Snail Eater Dipsas mikanii
- Brazilian Spotted Night Snake Siphlophis longicaudatus
- Brazilian Woodland Racer Drymoluber brazili
- Brazos Water Snake Nerodia harteri
- Bridled Keelback Hebius frenatus
- Briggs' Centipede Snake Tantilla briggsi
- Broadhead Ground Snake Atractus latifrons
- Brokencollar Graceful Brown Snake Rhadinella schistosa
- Brongersma's Reed Snake Calamaria brongersmai
- Brown Bush Snake Philothamnus brunneus
- Brown Fanged Snake Ialtris dorsalis
- Brown Kukri Snake Oligodon purpurascens
- Brown Sipo Chironius fuscus
- Brown Snake Storeria dekayi
- Brown Stream Snake Paratapinophis praemaxillaris
- Brown Trapezoid Snake Smithophis bicolor
- Brown Tree Snake Boiga irregularis
- Brown Vine Snake (anomala) Ahaetulla anomala
- Brown Vinesnake Oxybelis aeneus
- Brown Water Snake (taxispilota) Nerodia taxispilota
- Brown Wolf Snake Lycodon effraenis
- Brown-speckled Whipsnake Ahaetulla pulverulenta
- Buff Striped Keelback Amphiesma stolatum
- Bullsnake Pituophis catenifer
- Burbrink's Keelback Herpetoreas burbrinki
- Burmese Bronzeback Dendrelaphis subocularis
- Burmese Keelback Water Snake Xenochrophis bellulus
- Burrowing Night Snake Philodryas agassizii
- Burrowing Snake Adelphicos nigrilatum
- Butler's Garter Snake Thamnophis butleri
- Butler's Wolf Snake Lycodon butleri
- Buton Island Dwarf Snake Calamaria butonensis
- Caaeteboia gaeli
- Caesar's African Water Snake Grayia caesar
- Calamaria abramovi
- Calamaria concolor
- Calamaria lautensis
- Calamaria Reed Snake Liopeltis calamaria
- Calamitous Shadow Snake Synophis calamitus
- California Kingsnake Lampropeltis californiae
- California Mountain Kingsnake Lampropeltis zonata
- Cambodian Kukri Snake (kampucheaensis) Oligodon kampucheaensis
- Camorta Island Stripe-necked Snake Gongylosoma nicobariensis
- Canopy Snail-eating Snake Sibon canopy
- Cantor's Kukri Snake Oligodon cyclurus
- Cantor’s black-headed snake Sibynophis sagittarius
- Cape Gopher Snake Pituophis vertebralis
- Cape Striped Whipsnake Masticophis aurigulus
- Capistrata Centipede Snake Tantilla capistrata
- Cardamom Mountains Wolf Snake Lycodon cardamomensis
- Caribbean Water Snake Tretanorhinus variabilis
- Carr's Snail Sucker Sibon carri
- Cat Snake Telescopus fallax
- Cat-eyed Snake (septentrionalis) Leptodeira septentrionalis
- Catesby's Pointed Snake Uromacer catesbyi
- Catesby's Snail-eater Dipsas catesbyi
- Cave Racer Elaphe taeniura
- Ceboruco Centipede Snake Tantilla ceboruca
- Cedros Gopher Snake Pituophis insulanus
- Cei's Ground Snake Erythrolamprus ceii
- Celebes Black-tailed Ratsnake Gonyosoma jansenii
- Cenaspis aenigma
- Central African Egg-eating Snake Dasypeltis fasciata
- Central America Lizard Eater Mastigodryas alternatus
- Central American Centipede Snake Tantilla taeniata
- Central American Indigo Snake Drymarchon melanurus
- Central American Lyre Snake Trimorphodon quadruplex
- Central American Tree Snake Imantodes gemmistratus
- Central Burrowing Snake Apostolepis flavotorquata
- Central Plains Milksnake Lampropeltis gentilis
- Central Sipo (maculoventris) Chironius maculoventris
- Central Sipo (quadricarinatus) Chironius quadricarinatus
- Ceram Dwarf Snake Calamaria ceramensis
- Cerberus Groundsnake Atractus cerberus
- Cerrado Blackhead Apostolepis albicollaris
- Cerrado Racer Philodryas livida
- Cerralvo longnose snake Rhinocheilus etheridgei
- Cerro Texiguat Earth Snake Geophis damiani
- Ceylon Keelback Aspidura ceylonensis
- Ceylon Wolf Snake Lycodon carinatus
- Chaco Burrowing Snake Phalotris normanscotti
- Chacoan Blackhead Apostolepis breviceps
- Chan-ard Mountain Reed Snake Macrocalamus chanardi
- Chapa Mountain Keelback Opisthotropis jacobi
- Chapada Diamantina Sipo Chironius diamantina
- Chapare Snail-eater Dipsas chaparensis
- Checkered Garter Snake Thamnophis marcianus
- Checkered Keelback Xenochrophis piscator
- Chequered Keelback Fowlea piscator
- Chersodromus australis
- Chersodromus nigrum
- Chiapan Stripeless Snake Coniophanes alvarezi
- Chiapas Earth Snake Geophis cancellatus
- Chicken Snake Spilotes pullatus
- Chihuahuan Blackhead Snake Tantilla wilcoxi
- Chihuahuan Nightsnake Hypsiglena jani
- Chilean Green Racer Philodryas chamissonis
- Chilean Slender Snake Tachymenis chilensis
- Chin Hills Keelback Hebius venningi
- Chinese Bamboo Snake Pseudoxenodon karlschmidti
- Chinese Keelback Water Snake Trimerodytes percarinatus
- Chinese Kukri Snake Oligodon chinensis
- Chinese Leopard Snake Elaphe bimaculata
- Chinese Many-tooth Snake Sibynophis chinensis
- Chinese Mountain Keelback Opisthotropis kuatunensis
- Chinese Mountain Snake Plagiopholis styani
- Chironius laurenti
- Chiwen Keelback Rhabdophis chiwen
- Chlorosoma dunupyana
- Chlorosoma laticeps
- Chocoan Blunt-headed Vine Snake Imantodes chocoensis
- Chotaophis padhriensis
- Christine's Blackhead Apostolepis christineae
- Chucantí Centipede Snake Tantilla berguidoi
- Cincuate Bull Snake Pituophis lineaticollis
- Clarión Whip Snake Masticophis anthonyi
- Clark's Forest Racer Dendrophidion clarkii
- Clark's Ground Snake Atractus clarki
- Clelia hussami
- Clelia langeri
- Clifton's Lizard Eater Mastigodryas cliftoni
- Cloud Forest Earth Snake Geophis nephodrymus
- Cloud Forest Parrot Snake Leptophis modestus
- Clouded Reed Snake Calamaria nebulosa
- Cloudy Snail-eating Snake Sibon nebulatus
- Coachwhip Masticophis flagellum
- Coal Snake Pseudoboa neuwiedii
- Coast Nightsnake Hypsiglena ochrorhynchus
- Coastal House Snake (strigatus) Thamnodynastes strigatus
- Coffee Earth Snake Geophis nasalis
- Collared Catsnake Boiga nuchalis
- Collared Dwarf Snake Eirenis collaris
- Collared Ground Snake Atractus collaris
- Collared Kukri Snake Oligodon torquatus
- Collared Reed Snake (leucogaster) Calamaria leucogaster
- Collared Reed Snake (pavimentata) Calamaria pavimentata
- Colombian Earth Snake (brachycephalus) Geophis brachycephalus
- Colombian Earth Snake (nigroalbus) Geophis nigroalbus
- Colombian Frog-eating Snake Diaphorolepis laevis
- Colombian Longtail Snake Enuliophis sclateri
- Colombo Wolf Snake Lycodon anamallensis
- Colorado Desert Shovelnose Snake Chionactis annulata
- Coluber alternans
- Coluber anceps
- Coluber arboreus
- Coluber arctiventris
- Coluber arges
- Coluber atratus
- Coluber cadurci
- Coluber caerulescens
- Coluber caeruleus
- Coluber caspioides
- Coluber chiametla
- Coluber chironius
- Coluber cinereus
- Coluber corallinus
- Coluber cupreus
- Coluber cyaneus
- Coluber doliatus
- Coluber dolnicensis
- Coluber domicella
- Coluber eririo
- Coluber flaviceps
- Coluber foetidus
- Coluber glyripeta
- Coluber gyarosensis
- Coluber hastatus
- Coluber hygeiae
- Coluber ibiboboca
- Coluber jacapara
- Coluber kormosi
- Coluber latonia
- Coluber linkii
- Coluber melanepis
- Coluber merkurensis
- Coluber oryzivorus
- Coluber oularsawa
- Coluber ovivorus
- Coluber robertmertensi
- Coluber slevini
- Coluber tisiphone
- Common bilineate Blackhead Apostolepis dimidiata
- Common Bronzeback Dendrelaphis schokari
- Common Cat Snake Boiga trigonata
- Common Collared Snake Pseudorabdion collaris
- Common Egg Eater Dasypeltis scabra
- Common Gartersnake Thamnophis sirtalis
- Common Graceful Brown Snake Rhadinaea pulveriventris
- Common Green Racer Chlorosoma viridissimum
- Common Island Racer Arrhyton vittatum
- Common Kingsnake Lampropeltis getula
- Common Many-tooth Snake Sibynophis collaris
- Common Neckband Snake Scaphiodontophis venustissimus
- Common Ringneck Gongylosoma scriptum
- Common Rough-sided Snake Aspidura trachyprocta
- Common Spotted Night Snake Siphlophis leucocephalus
- Common Watersnake Nerodia sipedon
- Common Wolf Snake (aulicus) Lycodon aulicus
- Common Wolf Snake (capucinus) Lycodon capucinus
- Common Wolf Snake (solivagus) Lycodon solivagus
- Common Wormsnake Carphophis amoenus
- Conant's Garter Snake Thamnophis conanti
- Concho Water Snake Nerodia paucimaculata
- Confusing Egg Eater Dasypeltis confusa
- Cope's Antilles Snake Hypsirhynchus parvifrons
- Cope's Black-striped Snake Coniophanes piceivittis
- Cope's Coffee Snake Ninia psephota
- Cope's Earth Snake Conopsis acuta
- Cope's False Coral Snake Pliocercus euryzonus
- Cope's Forest Racer Dendrophidion paucicarinatum
- Cope's Ground Snake Atractus microrhynchus
- Cope's Mountain Meadow Snake Adelophis copei
- Cope's Parrot Snake Leptophis depressirostris
- Cope's Rough-side Aspidura copei
- Cope's Snail Sucker Sibon anthracops
- Cope's Snail-eater Dipsas copei
- Cope's Tropical Ground Snake Trimetopon pliolepis
- Cope's Tropical Racer Mastigodryas pulchriceps
- Cope's Vine Snake Oxybelis brevirostris
- Copper Parrot Snake Leptophis cupreus
- Coral Earth Snake Geophis semidoliatus
- Coral Red Kukri Snake Oligodon kheriensis
- Corn Snake Pantherophis guttatus
- Coronella miocaenica
- Costa Rica Coffee Snake Ninia celata
- Costa Rica Water Snake Hydromorphus concolor
- Costa Rican Glasstail Snake Urotheca pachyura
- Costa Rican Snaileater Sibon lamari
- Costal Lyre Snake Trimorphodon biscutatus
- Crayfish Snake Liodytes rigida
- Cross-barred Snake Dipsadoboa aulica
- Cross-marked Egg-eater Dasypeltis crucifera
- Crown Ground Snake Erythrolamprus viridis
- Crowned Dwarf Racer Eirenis coronella
- Crowned False Boa Pseudoboa coronata
- Crowned Graceful Brown Snake Rhadinaea laureata
- Crying Keelback Hebius lacrima
- Cu Lao Cham Kukri Snake Oligodon culaochamensis
- Cuban Island Racer Arrhyton ainictum
- Cuban Lesser Racer Caraiba andreae
- Cuban Racer Cubophis cantherigerus
- Cuc's Mountain Snake Opisthotropis cucae
- Culebra Paraphimophis rusticus
- Cunene Racer Mopanveldophis zebrinus
- Cusuco Graceful Brown Snake Rhadinella pegosalyta
- Cuyan Burrowing Snake Phalotris cuyanus
- Cyprus Whip Snake Hierophis cypriensis
- Dagger-tooth Vine Snake Xyelodontophis uluguruensis
- Dahl's Whip Snake Platyceps najadum
- Dahlak Racer Platyceps largeni
- Dalat Dwarf Snake Calamaria buchi
- Damara Tiger Snake Telescopus finkeldeyi
- Daniel's Keelback Helicops danieli
- Daniel's Tropical Racer Mastigodryas danieli
- Dao Van Tien's Stream Snake Opisthotropis daovantieni
- Dark green snake Coluber viridiflavus
- Dark Ground Snake Atractus melas
- Dark-bellied Earth Snake Geophis zeledoni
- Dark-bellied Reed Snake Calamaria curta
- Dark-Grey Ground Snake Elapoidis fusca
- Dark-headed Dwarf Racer (nigrofasciatus) Eirenis nigrofasciatus
- Dark-headed Dwarf Racer (persicus) Eirenis persicus
- Dark-headed Sabah Groundsnake Stegonotus caligocephalus
- Darwin's Racer Pseudalsophis darwini
- Dary's Burrowing Snake Adelphicos daryi
- Dasypeltis congolensis
- Dasypeltis parascabra
- Daudin's Bronzeback Dendrelaphis tristis
- David's Wolf Snake Lycodon davidi
- Dayan's Kukri Snake Rhynchocalamus dayanae
- De Lema's Ground Snake Apostolepis thalesdelemai
- De Rooij's groundsnake Stegonotus derooijae
- de Silva’s Rough-Side Snake Aspidura desilvai
- Deccan Wolf Snake Lycodon deccanensis
- Degenhardt's Scorpion-eating Snake Stenorrhina degenhardtii
- Delacour's Mountain Snake Plagiopholis delacouri
- Dendrophidion apharocybe
- Dendrophidion prolixum
- Deppe's Centipede Snake Tantilla deppei
- Derafshi Snake Lytorhynchus ridgewayi
- Desert Hooknose Snake Gyalopion quadrangulare
- Desert Kingsnake Lampropeltis splendida
- Desert Nightsnake Hypsiglena chlorophaea
- Despax's Ground Snake Atractus paucidens
- Despax's Parrot Snake Leptophis riveti
- Deuve's Kukri Snake Oligodon deuvei
- Devil's Head Spotted Night Snake Siphlophis ayauma
- Diadem Snake Spalerosophis diadema
- Diadophis elinorae
- Diamondback Night Stalker Toxicodryas adamanteus
- Diamondback Water Snake Nerodia rhombifer
- DiCaprio’s Snail-eating Snake Sibon irmelindicaprioae
- Dice Snake Natrix tessellata
- Diehl’s Little Ground Snake Stegonotus diehli
- Dinodon horridus
- Dione Snake Elaphe dione
- Dipsas carinata
- Dipsas oligozonata
- Discovery Ground Snake Atractus discovery
- Diurnal Vine Snake Xenoxybelis argenteus
- Dixon's Ground Snake Erythrolamprus atraventer
- Dog-toothed Cat Snake Boiga cynodon
- Dolniceophis lehmani
- Dominican Racer Alsophis sibonius
- Dominic’s reed snake Calamaria dominici
- Donaji's Slender Leaflitter Snake Rhadinella donaji
- Doria's Green Snake Ptyas doriae
- Dorr's Racer Bamanophis dorri
- Dotted Brown Snake Sordellina punctata
- Dotted Dwarf Snake Eirenis punctatolineatus
- Double Striped Kukri Snake Oligodon bivirgatus
- Double-banded Coral Snake Mimic Erythrolamprus bizona
- Downs' Earth Snake Geophis immaculatus
- Drab Ground Snake Erythrolamprus festae
- Drapiez's Cat Snake Boiga drapiezii
- Drummond-Hay's Rough-sided Snake Aspidura drummondhayi
- Dryinoides oxyrhachis
- Dugès' Earth Snake Geophis dugesii
- Dull Bamboo Snake Pseudoxenodon inornatus
- Dumeril's Diadem Snake Phalotris lemniscatus
- Duméril's False Coral Snake Oxyrhopus clathratus
- Duméril's Kukri Snake Oligodon sublineatus
- Duméril's Wolf Snake Lycodon dumerilii
- Dunn's Earth Snake Geophis dunni
- Dunn's Ground Snake Atractus dunni
- Dunn's Road Guarder Crisantophis nevermanni
- Dunn's Saphenophis Snake Saphenophis antioquiensis
- Dunn's Snail Sucker Sibon dunni
- Dunn's Tree Snake Dipsas vagrans
- Dunn's Tropical Ground Snake Trimetopon simile
- Dunn's Water Snake Hydromorphus dunni
- Durand's Mountain Stream Snake Opisthotropis durandi
- Dusky Wolf Snake Lycodon albofuscus
- Dwarf Reed Snake Pseudorabdion longiceps
- Döderlein's Reed Snake Calamaria doederleini
- East African Egg Eater Dasypeltis medici
- East Papuan Keelback Tropidonophis aenigmaticus
- East-Four-lined Ratsnake Elaphe sauromates
- Eastern bronzeback tree snake Dendrelaphis proarchos
- Eastern Cat Snake Boiga gocool
- Eastern Crowned Smooth Snake Meizodon regularis
- Eastern Fox Snake Pantherophis vulpinus
- Eastern Hognose Snake Heterodon platirhinos
- Eastern Indigo Snake Drymarchon couperi
- Eastern Rat Snake Pantherophis alleghaniensis
- Eastern Ribbonsnake Thamnophis saurita
- Eastern Trinket Snake Elaphe cantoris
- Eastern Vine Snake Thelotornis mossambicanus
- Eberhardt's Kukri Snake Oligodon eberhardti
- Echinanthera amoena
- Echinanthera cephalomaculata
- Echinanthera melanostigma
- Ecuador Frog-eating Snake Diaphorolepis wagneri
- Ecuador Sipo Chironius grandisquamis
- Ecuador Snail-eater Dipsas oreas
- Ecuadorean Ground Snake Atractus ecuadorensis
- Egyptian Catsnake Telescopus obtusus
- Egyptian Egg-eater Dasypeltis bazi
- Eight-lined Keelback Hebius octolineatus
- Eight-striped Kukri Snake Oligodon octolineatus
- Eirenis rafsanjanicus
- Eirenis yassujicus
- Eiselt's Dwarf Racer Eirenis eiselti
- Eiselt's Dwarf Reed Snake Pseudorabdion eiselti
- Eiselt's Reed Snake Calamaria eiselti
- El Molote Earth Snake Geophis occabus
- El Oro Snail Eater Dipsas bobridgelyi
- Elaphe algorensis
- Elaphe kohfidischi
- Elaphe lineata
- Elaphe nebraskensis
- Elaphe paralongissima
- Elaphe praelongissima
- Elaphe szyndlari
- Elegant Bronzeback Dendrelaphis formosus
- Elegant Ground Snake Lygophis elegantissimus
- Elegant Racer Platyceps elegantissimus
- Elegant Snail-eater Dipsas elegans
- Emerald Green Snake Philothamnus heterodermus
- Emerald Snake Hapsidophrys smaragdinus
- Emigdio's Ground Snake Atractus emigdioi
- Emmel's Ground Snake Atractus emmeli
- Enggano Rat Snake Coelognathus enganensis
- English common name not available Elaphe hodgsoni
- Enparaguayan Burrowing Snake Phalotris nigrilatus
- Equatorial Keelback Helicops trivittatus
- Equatorial Mussurana Clelia equatoriana
- Erdis' False Coral Snake Oxyrhopus erdisii
- Erland's Miranda Green Racer Philodryas erlandi
- Erythrolamprus albiventris
- Erythrolamprus andinus
- Erythrolamprus carajasensis
- Erythrolamprus dorsocorallinus
- Erythrolamprus epinephelus
- Erythrolamprus fraseri
- Erythrolamprus ingeri
- Erythrolamprus janaleeae
- Erythrolamprus lamonae
- Erythrolamprus macrosomus
- Erythrolamprus oligolepis
- Erythrolamprus rochai
- Erythrolamprus subocularis
- Erythrolamprus taeniogaster
- Erythrolamprus trebbaui
- Erythrolamprus vitti
- Esmarald Racer Drymobius rhombifer
- Española Racer Pseudalsophis hoodensis
- Espinal's Coffee Snake Ninia espinali
- Espiritu Santo Striped Whipsnake Masticophis barbouri
- Ethiopian Egg Eater Dasypeltis abyssina
- Ethiopian Hook-nosed Snake Scaphiophis raffreyi
- Eutrachelophis papilio
- Everett's Kukri Snake Oligodon everetti
- Everett's Reed Snake Calamaria everetti
- Faded Black-striped Snake Coniophanes schmidti
- Fahimi's ground snake Persiophis fahimii
- Falcon indigo snake Drymarchon caudomaculatus
- False Cat-eyed Snake Pseudoleptodeira latifasciata
- False Coral Snake Erythrolamprus pseudocorallus
- False Fer-de-lance Xenodon rabdocephalus
- False Ficimia Pseudoficimia frontalis
- False Habu Pseudagkistrodon rudis
- False Smooth Snake (cucullatus) Macroprotodon cucullatus
- False Smooth Snake (mauritanicus) Macroprotodon mauritanicus
- False Striped Kukri Snake Oligodon pseudotaeniatus
- False Tomodon Snake Pseudotomodon trigonatus
- False Tree Coral Rhinobothryum bovallii
- False Water Cobra Hydrodynastes gigas
- Fanged Water Snake Ptychophis flavovirgatus
- Fasciolated Kukri Snake Oligodon fasciolatus
- Fat Ground Snake Atractus obesus
- Faust's Wolf Snake Lycodon fausti
- Fernandina Racer Pseudalsophis occidentalis
- Ferron's Wolf Snake Lycodon ferroni
- Fiddle-string Snake Imantodes cenchoa
- Fierce Night Stalker Toxicodryas vexator
- Filetail Ground Snake Sonora aemula
- Filippi's Ground Snake Atractus favae
- Fire-back Keelback Hebius igneus
- Fischer's Cat Snake Toxicodryas pulverulenta
- Fischer's Snail-eating Snake Tropidodipsas fischeri
- Fitzinger's False Coral Snake Oxyrhopus fitzingeri
- Five-striped Snake Coniophanes quinquevittatus
- Flaming Ground Snake Atractus flammigerus
- Flat-headed Kukri Snake Oligodon planiceps
- Flathead Snake Tantilla gracilis
- Flores Ground Snake Stegonotus florensis
- Florida Brown Snake Storeria victa
- Florida Crowned Snake Tantilla relicta
- Florida Green Watersnake Nerodia floridana
- Floridaophis auffenbergi
- Flowered Racer Platyceps florulentus
- Forbes' Graceful Brown Snake Rhadinaea forbesi
- Forbes' Kukri Snake Oligodon forbesi
- Forcart's Reed Snake Calamaria forcarti
- Forest Flame Snake Oxyrhopus petolarius
- Forest Marsh Snake Natriciteres sylvatica
- Forest Racer Dendrophidion bivittatus
- Forest Sharp-tailed Snake Contia longicauda
- Formosa Kukri Snake Oligodon formosanus
- Formosa Wolf Snake Lycodon ruhstrati
- Forsten's Cat Snake Boiga forsteni
- Forsten's Pointed Snake Rabdion forsteni
- Four-lined Snake Elaphe quatuorlineata
- Fox's Mountain Meadow Snake Adelophis foxi
- Frog-eater Snake Echinanthera undulata
- Fronted Ground Snake Lygophis flavifrenatus
- Futsing Wolf Snake Lycodon futsingensis
- Gaige's Ground Snake Atractus gaigeae
- Gaige's Pine Forest Snake Rhadinaea gaigeae
- Gaige's Thirst Snail-eater Dipsas gaigeae
- Galapagos Racer Pseudalsophis biserialis
- Gammie's Wolf Snake Lycodon gammiei
- Gans' Egg Eater Dasypeltis gansi
- Gansophis potwarensis
- Garland Centipede Snake Tantilla sertula
- Gary's Mountain Keelback Opisthotropis alcalai
- Genting Highlands Reed Snake Macrocalamus gentingensis
- George Jett's Snail-Eater Dipsas georgejetti
- Gervais' Reed Snake Calamaria gervaisii
- Ghana Herald Snake Crotaphopeltis hippocrepis
- Gia Lai Reed Snake Calamaria gialaiensis
- Giant Garter Snake Thamnophis gigas
- Giant Ground Snake Atractus gigas
- Gibara White-collared Racerlet Arrhyton albicollum
- Gibson's wolf snake Lycodon gibsonae
- Giri's Bronzeback Tree Snake Dendrelaphis girii
- Glossy Snake Arizona elegans
- Glossy-bellied Racer Platyceps ventromaculatus
- Godman's Earth Snake Geophis godmani
- Godman's Garter Snake Thamnophis godmani
- Godman's Graceful Brown Snake Rhadinella godmani
- Goias Burrowing Snake Apostolepis goiasensis
- Gold-ringed Cat Snake (dendrophila) Boiga dendrophila
- Gold-ringed Cat Snake (melanota) Boiga melanota
- Golden Flying Snake Chrysopelea ornata
- Golden Liophis Erythrolamprus semiaureus
- Golden-bellied Reed Snake Macrocalamus emas
- Golden-belly snake Lygophis anomalus
- Goldenhead Garter Snake Thamnophis chrysocephalus
- Gomes' Burrowing Snake Apostolepis cearensis
- Gomes' Pampas Snake Rodriguesophis iglesiasi
- Gongshan Wolf Snake Lycodon gongshan
- Gore's Bronzeback (biloreatus) Dendrelaphis biloreatus
- Gore's Bronzeback (walli) Dendrelaphis walli
- Grabowsky's Reed Snake Calamaria grabowskyi
- Graceful Mountain Snake Rhadinophanes monticola
- Graceful Racer Platyceps gracilis
- Graceful Snail-eater Dipsas gracilis
- Graham's Crayfish Snake Regina grahamii
- Grass Snake Natrix natrix
- Grass Snake (helvetica) Natrix helvetica
- Gray Bronzeback (caudolineatus) Dendrelaphis caudolineatus
- Gray Bronzeback (modestus) Dendrelaphis modestus
- Gray Cat Snake Boiga siamensis
- Gray Lora Leptophis stimsoni
- Gray Rat Snake Pantherophis spiloides
- Gray's Kukri Snake Oligodon dorsalis
- Gray-banded Kingsnake Lampropeltis alterna
- Great Plains Rat Snake Pantherophis emoryi
- Greater Centipede Snake Tantilla impensa
- Greater Green Snake Ptyas major
- Green Bush Snake Philothamnus nitidus
- Green Cat Snake Boiga cyanea
- Green Highland Racer Drymobius chloroticus
- Green Keelback Rhabdophis nigrocinctus
- Green Rat Snake (nigromarginata) Ptyas nigromarginata
- Green Rat Snake (triaspis) Senticolis triaspis
- Green Tree Snake Dendrelaphis punctulatus
- Green treesnake Dendrelaphis calligaster
- Green Trinket Snake Gonyosoma prasinum
- Green Vine Snake (fulgidus) Oxybelis fulgidus
- Green Vine Snake (nasuta) Ahaetulla nasuta
- Green Water Snake Philothamnus hoplogaster
- Greer’s Kingsnake Lampropeltis greeri
- Grey Ground Snake Atractus occipitoalbus
- Ground Snake (exiguus) Magliophis exiguus
- Ground Snake (semiannulata) Sonora semiannulata
- Groundwater's Keelback Hebius groundwateri
- Groves' Pointed Snake Rabdion grovesi
- Gua Wang Burma Wolf Snake Lycodon cavernicolus
- Guaiquinima Bush Racer Philodryas cordata
- Guanabara Spotted Night Snake Siphlophis pulcher
- Guanaja Longtail Snake Enulius bifoveatus
- Guane Tree Snake Imantodes guane
- Guangdong Keelback Rhabdophis guangdongensis
- Guangxi Cat Snake Boiga guangxiensis
- Guangxi kukri snake Oligodon lungshenensis
- Guanxi Mountain Keelback Opisthotropis guangxiensis
- Guatemala Neckband Snake Scaphiodontophis annulatus
- Guatemalan Earth Snake Chapinophis xanthocheilus
- Guatemalan Vine Snake Oxybelis koehleri
- Guerreran Centipede Snake Tantilla coronadoi
- Guerreran Earth Snake Geophis omiltemanus
- Guerreran Hooknose Snake Ficimia ruspator
- Guerreran Pine Woods Snake Rhadinaea omiltemana
- Guerrero Black-striped Snake Coniophanes taylori
- Guerrero Slender Leaf Litter Snake Rhadinella dysmica
- Guianan Green Snake Xenodon werneri
- Guibe's Flame Snake Oxyrhopus guibei
- Gulf Coast Vine Snake Oxybelis potosiensis
- Gunther's Bronzeback Tree Snake Dendrelaphis caudolineolatus
- Gunung Kerinchi Keelback Hebius kerinciensis
- Günther's Dwarf Reed Snake Pseudorabdion oxycephalum
- Günther's False Coral Snake Erythrolamprus guentheri
- Günther's False Fer-de-lance Xenodon guentheri
- Günther's Forest Racer Dendrophidion brunneum
- Günther's Green Liophis Erythrolamprus albertguentheri
- Günther's Green Racer Philodryas psammophidea
- Günther's Green Tree Snake Dipsadoboa unicolor
- Günther's Ground Snake Atractus guentheri
- Günther's Island Racer Arrhyton taeniatum
- Günther's Keelback Rhabdophis chrysargoides
- Günther's Many-tooth Snake Sibynophis bistrigatus
- Günther's Reed Snake Liopeltis frenata
- Günther's Rough-sided Snake Aspidura guentheri
- Günther's Tropical Ground Snake Trimetopon gracile
- Günther's Vine Snake Ahaetulla dispar
- Haas's Bronzeback Snake Dendrelaphis haasi
- Habana Island Racer Arrhyton dolichura
- Hagmann's Keelback Helicops hagmanni
- Hai Ha Mountain Stream Keelback Opisthotropis haihaensis
- Hainan Island Keelback Snake Rhabdophis confusus
- Hainan Keelback Rhabdophis adleri
- Hainan Rhinoceros Snake Gonyosoma hainanense
- Hainanese Stream Snake Trimerodytes balteatus
- Haitian Ground Snake Ialtris haetianus
- Hakkari Dwarf Racer Eirenis hakkariensis
- Hallberg's Cloud Forest Snake Cryophis hallbergi
- Hallowell's Centipede Snake Tantilla vermiformis
- Hallowell's Coffee Snake Ninia atrata
- Hallowell's Ground Snake Atractus fuliginosus
- Halmahera Keelback Tropidonophis punctiventris
- Hampton's Kukri Snake Oligodon hamptoni
- Hannstein's Spot-lipped Snake Rhadinella hannsteini
- Hardy's Hooknose Snake Ficimia hardyi
- Harvey’s Blackhead Apostolepis multicincta
- Hawbeack Blackhead Apostolepis polylepis
- Head-striped Leaf-litter Snake Echinanthera cephalostriata
- Heath's Tropical Racer Mastigodryas heathii
- Hebius arquus
- Hebius nigriventer
- Helicops boitata
- Helicops phantasma
- Hempstead's Pine Woods Snake Rhadinella hempsteadae
- Henderson's Peten Centipede Snake Tantilla hendersoni
- Hensel's Snake Ditaxodon taeniatus
- Herrmann's Water Snake Hydrodynastes bicinctus
- Heterodon plionasicus
- Hidden Snail-eating Snake Dipsas aparatiritos
- Highland Earth Snake Geophis mutitorques
- Highland Garter Snake Thamnophis fulvus
- Highland Keelback Tropidonophis parkeri
- Himalayan Keelback Herpetoreas platyceps
- Himalayan Stripe-necked Snake Liopeltis rappi
- Hispanic Ground Snake Atractus oculotemporalis
- Hispaniola Cat-eyed Snake Hypsirhynchus ferox
- Hispaniola Racer Haitiophis anomalus
- Hispanophis coronelloideus
- Hoffmann's Earth Snake Geophis hoffmanni
- Hoge's Ground Snake Lygophis paucidens
- Hognose Lineate Blackhead Apostolepis lineata
- Holarchus konishii
- Hollinrake's Bronzeback Dendrelaphis hollinrakei
- Honduran milk snake Lampropeltis abnorma
- Hong Kong Dwarf Snake Calamaria septentrionalis
- Horseshoe Whip Snake Hemorrhois hippocrepis
- Hoshell's Forest Racer Dendrophidion boshelli
- Hua Hin Kukri Snake Oligodon huahin
- Huaping Wolf Snake Lycodon cathaya
- Hubei Keelback Rhabdophis nuchalis
- Hudson's Coffee Snake Ninia hudsoni
- Hughes' Green Snake Philothamnus hughesi
- Hurria bilineata
- Ibarra Snail-eater Dipsas ellipsifera
- Ibarra's Burrowing Snake Adelphicos ibarrorum
- Iberian Grass Snake Natrix astreptophora
- Ihering's Snake Lioheterophis iheringi
- Impostor Flame-Snake Oxyrhopus vanidicus
- Incaspis amaru
- Indian Desert Tiger Snake Telescopus rhinopoma
- Indian Egg-eater Boiga westermanni
- Indian Flying Snake Chrysopelea taprobanica
- Indian Smooth Snake Coronella brachyura
- Indigo Snake Drymarchon corais
- Indistinct Ground Snake Atractus indistinctus
- Indistinct Groundsnake Atractus esepe
- Indo-Chinese Rat Snake Ptyas korros
- Indonesian Keelback Tropidonophis truncatus
- Inkaterra Vine Snake Oxybelis inkaterra
- Inornate Kukri Snake Oligodon inornatus
- Iridescent Ground Snake Atractus iridescens
- Irregular Green Snake Philothamnus irregularis
- Isla San Esteban Whipsnake Masticophis slevini
- Isla Santa Catalina Nightsnake Hypsiglena catalinae
- Island Pointed Snake Uromacer frenatus
- Islas Revillagigedo Nightsnake Hypsiglena unaocularus
- Isthmian Earth Snake Geophis isthmicus
- Italian Aesculapian Snake Zamenis lineatus
- Jackson's Black Tree Snake Thrasops jacksonii
- Jaeger's Ground Snake Erythrolamprus jaegeri
- Jamaican Black Groundsnake Hypsirhynchus funereus
- Jamaican Long-tailed Groundsnake Hypsirhynchus polylepis
- Jamaican Red Groundsnake Hypsirhynchus callilaemus
- James Peters's Snail-eater Dipsas jamespetersi
- Jan's Centipede Snake Tantilla jani
- Jan's Green Racer Philodryas varia
- Jan's Hognose Snake Xenodon histricus
- Jan's Snail-eater (alternans) Dipsas alternans
- Jan's Snail-eater (incerta) Dipsas incerta
- Jan's Tree Snake Dipsas vagus
- Japanese Four-lined Ratsnake Elaphe quadrivirgata
- Japanese Keelback Hebius vibakari
- Japanese Ratsnake Elaphe climacophora
- Japanese Woodsnake Euprepiophis conspicillata
- Jason's Reed Snake Macrocalamus jasoni
- Jasper Cat Snake Boiga jaspidea
- Javan Keelback Water Snake Fowlea melanozostus
- Javanese Kukri Snake Oligodon propinquus
- Javanese Reed Snake Calamaria javanica
- Jensen's Ground Snake Xenopholis undulatus
- Jerdon's Kukri Snake Oligodon venustus
- Jerdon's Many-tooth Snake Sibynophis subpunctatus
- Jiboinha Tropidodryas striaticeps
- Jingdong Water Snake Trimerodytes yapingi
- Jintakune's Kukri Snake Oligodon jintakunei
- Joan's Snake Coniophanes joanae
- Johann's Keelback Hebius johannis
- Johnson's Centipede Snake Tantilla johnsoni
- Jolo Worm Snake Calamaria joloensis
- Joseph's Racer Platyceps josephi
- Joynson's Kukri Snake Oligodon joynsoni
- Jubones Cat-eyed Snake Leptodeira misinawui
- Julia's Ground Snake Erythrolamprus juliae
- Kageler’s Tree Snake Dipsadoboa kageleri
- Kanalchutchan Graceful Brown Snake Rhadinella kanalchutchan
- Kapuas Reed Snake Calamaria melanota
- Karenland Keelback Hebius terrakarenorum
- Karnataka Bronzeback Dendrelaphis chairecacos
- Karnataka Whipsnake Ahaetulla farnsworthi
- Karoo Tiger Snake Telescopus beetzi
- Keeled Earth Snake Geophis carinosus
- Keeled Rat Snake Ptyas carinata
- Keeled vine snake Proahaetulla antiqua
- Kei Island Groundsnake Stegonotus keyensis
- Kei Treesnake Dendrelaphis keiensis
- Kelung Cat Snake Boiga kraepelini
- Kennedy's Leafnose Snake Lytorhynchus kennedyi
- Kerman Dwarf Snake Eirenis kermanensis
- Khasi Hills Trinket Snake Gonyosoma frenatum
- Khasi Keelback Hebius khasiensis
- Kikuzato's Brook Snake Opisthotropis kikuzatoi
- Kinabalu Water Snake Hydrablabes praefrontalis
- Kinkelin Graceful Brown Snake Rhadinella kinkelini
- Kirtland's Snake Clonophis kirtlandii
- Kirtland's Twig Snake Thelotornis kirtlandii
- Klebba's Snail-Eater Dipsas klebbai
- Kopstein's Bronzeback Snake Dendrelaphis kopsteini
- Korean Ratsnake Elaphe anomala
- Kosempo Keelback Hebius sauteri
- Kuatun Keelback Hebius craspedogaster
- Kukri Snake Oligodon affinis
- Kundu's Wolf Snake Lycodon kundui
- Kutkai Keelback Hebius bitaeniatus
- La Loma Earth Snake Geophis tectus
- La Salle's Shadow Snake Synophis lasallei
- La Vega Racer Hypsirhynchus melanichnus
- La Villa's Snail-eater Dipsas lavillai
- Lacroix Kukri Snake Oligodon lacroixi
- Lacépède's Ground Snake Erythrolamprus cursor
- Ladder Keelback Helicops scalaris
- Ladder Snake Zamenis scalaris
- Lagoa Carumbo Swamp Snake Limnophis branchi
- Lampropeltis intermedius
- Lampropeltis similis
- Lancini's Ground Snake Atractus lancinii
- Langbian Kukri Oligodon tuani
- Laotian Wolf Snake Lycodon laoensis
- Large Whip Snake (caspius) Dolichophis caspius
- Large Whip Snake (jugularis) Dolichophis jugularis
- Large-eyed Green Treesnake Rhamnophis aethiopissa
- Largenose Earth Snake Conopsis nasus
- Lasalle's Ground Snake Atractus lasallei
- Lau's Mountain Stream Snake Opisthotropis laui
- Laudankia Vine Snake Ahaetulla laudankia
- Laurent’s Green Tree-snake Dipsadoboa viridis
- Lead Keelback Rhabdophis plumbicolor
- Lehmann's Ground Snake Atractus lehmanni
- Lema's Ground Snake Lygophis dilepis
- Leonard's Keelback Rhabdophis leonardi
- Leopard Keelback Helicops leopardinus
- Leopard Snake Zamenis situla
- Leptodeira polysticta
- Leptodeira rhombifera
- Leptophis haileyi
- Leptophis vertebralis
- Lesser Sundas Bronzeback Dendrelaphis inornatus
- Lesser Sundas Cat Snake Boiga hoeseli
- Levantine Dwarf Snake Eirenis levantinus
- Leviton's Leafnose Snake Lytorhynchus gasperetti
- Leyte Cat Snake Boiga angulata
- Lichtenstein's Green Racer Philodryas olfersii
- Liebmann's Earth Runner Chersodromus liebmanni
- Light-barred Kukri Snake Oligodon albocinctus
- Lined Ground Snake Lygophis lineatus
- Lined Reed Snake Calamaria griswoldi
- Lined smithophis Smithophis linearis
- Lined Snail Sucker Sibon linearis
- Lined Snake Tropidoclonion lineatum
- Lined Tolucan Earthsnake Conopsis lineata
- Liner's Garter Snake Thamnophis lineri
- Liner's Garter Snake (bogerti) Thamnophis bogerti
- Lingnan Reed Snake Calamaria arcana
- Linnaeus' Sipo Chironius exoletus
- Linne's Dwarf Snake Calamaria linnaei
- Linton's Dwarf Short-tail Snake Tantillita lintoni
- Liopeltis pallidonuchalis
- Liopeltis tiomanica
- Lip-spotted Collared Snake Phalotris labiomaculatus
- Litter Snake Tantilla reticulata
- Little Cayman Racer Cubophis ruttyi
- Little-scaled Ground Snake Atractus pauciscutatus
- Lonely Spotbelly-Snake Coniophanes longinquus
- Long-snouted Dwarf Snake Calamaria longirostris
- Long-snouted kukri snake Oligodon rostralis
- Long-tailed Ringneck Gongylosoma longicauda
- Longhead Burrowing Snake Apostolepis longicaudata
- Longnose Snake Rhinocheilus lecontei
- Longtail Alpine Garter Snake Thamnophis scalaris
- Loos Snake Oligodon taeniolatus
- Loranca's Earth Snake Geophis lorancai
- Lorentz River treesnake Dendrelaphis lorentzii
- Louisiana Pine Snake Pituophis ruthveni
- Loveridge's Ground Snake Atractus loveridgei
- Low's Reed Snake Calamaria lovii
- Luding Wolf Snake Lycodon multizonatus
- Lumholz's Reed Snake Calamaria lumholtzi
- Luzon Bronzeback Dendrelaphis luzonensis
- Luzon Dwarf Snake Calamaria bitorques
- Luzon Kukri Snake Oligodon modestus
- Lycodon unicolor
- Lydia’s Little Snake Tantilla lydia
- Macarena Mountains Snail-eater Dipsas baliomelas
- MacDougall's Graceful Brown Snake Rhadinaea macdougalli
- Mackinnon's Wolf Snake Lycodon mackinnoni
- Madrean Mountain Kingsnake Lampropeltis knoblochi
- Madrean Narrowheaded Garter Snake Thamnophis unilabialis
- Mair's Keelback Tropidonophis mairii
- Maki's Keelback Hebius miyajimae
- Malabar Whipsnake Ahaetulla malabarica
- Malayan Banded Wolf Snake Lycodon subcinctus
- Malayan Bridal Snake Lycodon subannulatus
- Malayan Brown Snake Xenelaphis hexagonotus
- Malayan Many-tooth Snake Sibynophis melanocephalus
- Malayan Mountain Keelback Hebius inas
- Malayan Mountain Reed Snake Macrocalamus lateralis
- Malayan Ringneck Liopeltis tricolor
- Malayan Whipsnake Ahaetulla mycterizans
- Mandarin Ratsnake Euprepiophis mandarinus
- Mangrove Cat-eyed Snake Leptodeira rubricata
- Mangrove Snak Erythrolamprus cobella
- Manila Wolf Snake Lycodon tessellatus
- Manizales Ground Snake Atractus manizalesensis
- Many-banded Green Snake Ptyas multicincta
- Many-banded Tree Snake Boiga multifasciata
- Many-scaled Keelback Tropidonophis multiscutellatus
- Many-spotted Cat Snake Boiga multomaculata
- Marcella's Graceful Brown Snake Rhadinaea marcellae
- Maren's Bronzeback Dendrelaphis marenae
- Margarita Indigo Snake Drymarchon margaritae
- Maringma Tepui Sipo Chironius challenger
- Marisela's Ground Snake Atractus mariselae
- Marley’s Snail-eating Snake Sibon marleyae
- Marsh Snake (fuliginoides) Natriciteres fuliginoides
- Martha’s Groundsnake Atractus marthae
- Maryellen's Ground Snake Erythrolamprus maryellenae
- Mastigodryas moratoi
- Mastigodryas reticulatus
- Mato Grosso Burrowing Snake Phalotris matogrossensis
- Mato Grosso Burrowing Snake (intermedia) Apostolepis intermedia
- Mato Grosso Burrowing Snake (serrana) Apostolepis serrana
- Mato Grosso Hognose Snake Xenodon matogrossensis
- Maxwell's Mountain Keelback Opisthotropis maxwelli
- Maynard's Longnose Sand Snake Lytorhynchus maynardi
- Mayombe Bush Snake Philothamnus mayombensis
- McDougall's Kukri Snake Oligodon mcdougalli
- Mcnamara's Burrowing Snake Pseudorabdion mcnamarae
- Mechel's Reed Snake Calamaria mecheli
- Medog Kukri Snake Oligodon lipipengi
- Mena's Centipede Snake Tantilla lempira
- Mertens' Centipede Snake Tantilla brevicauda
- Mertens' Earth Snake Geophis fulvoguttatus
- Mertens' Tropical Forest Snake Erythrolamprus mertensi
- Mesa Central Earth Snake Geophis laticinctus
- Mesa del Sur Earth Snake (dubius) Geophis dubius
- Mesa del Sur Earth Snake (rostralis) Geophis rostralis
- Mexican Black-headed Snake Tantilla atriceps
- Mexican Brown Snake Storeria storerioides
- Mexican Bull Snake Pituophis deppei
- Mexican Garter Snake Thamnophis eques
- Mexican Hog-nose Snake Heterodon kennerlyi
- Mexican Hook-nosed Snake Ficimia olivacea
- Mexican Hooknose Snake Ficimia streckeri
- Mexican Kingsnake Lampropeltis mexicana
- Mexican Kingsnake (leonis) Lampropeltis leonis
- Mexican Long-nosed Snake Rhinocheilus antonii
- Mexican Longtail Snake Enulius oligostichus
- Mexican Lyre Snake Trimorphodon tau
- Mexican Milksnake Lampropeltis annulata
- Mexican Parrot Snake Leptophis mexicanus
- Mexican Patchnose Snake Salvadora mexicana
- Mexican Plateau Earth Snake Geophis bicolor
- Mexican Short-tail Snake Sympholis lippiens
- Mexican Snake Eater Clelia scytalina
- Mexican Wandering Garter Snake Thamnophis errans
- Mexican White-lipped Snake Symphimus leucostomus
- Mexican Yellowbelly Brown Snake Storeria hidalgoensis
- Michael Sabin’s Ground Snake Atractus michaelsabini
- Michoacan Black-striped Snake Coniophanes michoacanensis
- Michoacán Centipede Snake Tantilla cascadae
- Michoacán Earth Snake Geophis maculiferus
- Michoacán Ground Snake Sonora michoacanensis
- Michoacán Ground Snake (mutabilis) Sonora mutabilis
- Micronatrix juliescottae
- Middle American Burrowing Snake (quadrivirgatum) Adelphicos quadrivirgatum
- Middle American Burrowing Snake (visoninum) Adelphicos visoninum
- Military Ground Snake Erythrolamprus miliaris
- Milk Snake Lampropeltis triangulum
- Milne Bay Ground Snake Stegonotus guentheri
- Mimic False Coral Snake Erythrolamprus mimus
- Minacu Blackhead Apostolepis nelsonjorgei
- Minas Gerais Snake Coronelaps lepidus
- Miocoluber dalquesti
- Miranda Green Racer (mattogrossensis) Philodryas mattogrossensis
- Misiones Blackhead Apostolepis quirogai
- Mississippi Green Water Snake Nerodia cyclopion
- miter snake Sonora episcopa
- Miyako Kellback Hebius concelarus
- Miyata's Centipede Snake Tantilla miyatai
- Mizo rain snake Smithophis atemporalis
- Mock Cobra Pseudoxenodon macrops
- Mocquard's Swamp Snake Tretanorhinus mocquardi
- Modest Dwarf Snake Calamaria modesta
- Modest Ground Snake Atractus modestus
- Modest Keelback Hebius modestus
- Modigliani's Dwarf Reed Snake Pseudorabdion modiglianii
- Moellendorff's Trinket Snake Elaphe moellendorffi
- Mole snake Lampropeltis rhombomaculata
- Moluccan Flying Snake Chrysopelea rhodopleuron
- Moluccan Keelback Tropidonophis elongatus
- Montane Egg-eater Dasypeltis atra
- Montane Forest Tree Snake Dipsadoboa montisilva
- Montane Garter Snake Thamnophis exsul
- Montane Treesnake Dendrelaphis gastrostictus
- Monte Cristi Graceful Brown Snake Rhadinella montecristi
- Montserrat Racer Alsophis manselli
- Mora's Road Guarder Conophis morai
- Morice's Kukri Snake Oligodon moricei
- Mosauer’s Ground Snake Sonora mosaueri
- Mossoro Smooth Snake Erythrolamprus mossoroensis
- Mouhot's Cambodian Kukri Snake Oligodon mouhoti
- Mount Gongga Keelback Rhabdophis pentasupralabialis
- Mount Omei Keelback Hebius optatus
- Mountain Burrowing Snake Pseudorabdion montanum
- Mountain Centipede Snake Tantilla insulamontana
- Mountain Dwarf Snake Collorhabdium williamsoni
- Mountain Keelback Helicops angulatus
- Mountain Patchnose Snake Salvadora grahamiae
- Mountain Reed Snake Oreocalamus hanitschi
- Mountain Shadow Snake Synophis insulomontanus
- Mountain Sipo Chironius monticola
- Mountain Worm-eating Snake Trachischium monticola
- Mousehole Snake Philodryas trilineata
- Mud Snake (abacura) Farancia abacura
- Mud Snake (caesurus) Hydrops caesurus
- Mueller's Reed Snake Calamaria muelleri
- Mukut Smooth Snake Gongylosoma mukutense
- Muller's Wolf Snake Lycodon muelleri
- Muruden Keelback Rhabdophis murudensis
- Mussurana (clelia) Clelia clelia
- Mussurana (maculata) Boiruna maculata
- Mussurana montana
- Myers' Graceful Brown Snake Rhadinaea myersi
- Myopic Shadow Snake Emmochliophis miops
- Mêdog Himalayas Keelback Herpetoreas tpser
- Müller's Ground Snake Stegonotus muelleri
- Nagao Kukri Snake Oligodon nagao
- Nagarkot Kukri Snake Oligodon erythrogaster
- Naja suevica
- Namdong Wolf Snake Lycodon chapaensis
- Namsang Kukri Snake Oligodon erythrorhachis
- Nanus planicarinatus
- Narrow-headed Reed Snake Calamaria nuchalis
- Narrow-striped Dwarf Snake Eirenis decemlineatus
- Narrowhead Watersnake Thamnophis rufipunctatus
- Natal Green Snake Philothamnus natalensis
- Natrix flagelliformis
- Natrix forsteri
- Natrix hillmani
- Natrix longivertebrata
- Natrix merkurensis
- Natrix mlynarskii
- Natrix parva
- Natterer's Hognose Snake Xenodon nattereri
- Neckband Ground Snake Atractus torquatus
- Negros Bronzeback Dendrelaphis fuliginosus
- Negros Spotted Water Snake Tropidonophis negrosensis
- Neotropical Snail-eater (bucephala) Dipsas bucephala
- Neotropical Snail-eater (cisticeps) Dipsas cisticeps
- Neotropical Snail-eater (indica) Dipsas indica
- Neotropical Whip Snake Masticophis mentovarius
- Neuwied's False Fer-de-lance Xenodon neuwiedii
- Neuwied's Tree Snake Dipsas neuwiedi
- New Britain Keelback Tropidonophis dahlii
- New Guinea Bronzeback Dendrelaphis lineolatus
- New Guinea Keelback Tropidonophis novaeguineae
- Newman's earth snake Adelphicos newmanorum
- Nganson Bronzeback Dendrelaphis ngansonensis
- Nguyenvansang's snake Colubroelaps nguyenvansangi
- Nichols' Tree Snake Dipsas nicholsi
- Nicobar Cat Snake Boiga wallachi
- Nicobar Island Keelback Hebius nicobariensis
- Nicéforo María's Shadow Snake Synophis niceforomariae
- Night Snake Hypsiglena torquata
- Nikhil's Kukri Snake Oligodon nikhili
- Nilgiri Keelback Hebius beddomei
- Ningshaan Kukri Snake Stichophanes ningshaanensis
- Ninia teresitae
- Norman's Keelback Helicops polylepis
- North African Catsnake Telescopus tripolitanus
- North Irian Montane Keelback Tropidonophis montanus
- Northeastern Puffing Snake Phrynonax polylepis
- Northern Banded Coffee Snake Ninia pavimentata
- Northern Calico Snake Oxyrhopus occipitalis
- Northern Ground Snake Atractus nicefori
- Northern Keelback Hebius deschauenseei
- Northern Marbled Nocturnal Tree Snake Dipsadoboa flavida
- Northern New Guinea Ground Snake Stegonotus modestus
- Northern New Guinea Keelback Tropidonophis mcdowelli
- Northern Red-necked Keelback Rhabdophis helleri
- Northern Short-headed Snake Oligodon ancorus
- Northern Snail-eater Dipsas pavonina
- Northern Vine Snake Ahaetulla borealis
- Northern Woodland Racer Drymoluber dichrous
- Northwestern Garter Snake Thamnophis ordinoides
- Nuevo Leon Graceful Brown Snake Rhadinaea montana
- O'Neill's Tree Snake Dipsas oneilli
- Oaxacan Burrowing Snake Adelphicos latifasciatum
- Oaxacan Cat-eyed Snake Tantalophis discolor
- Oaxacan Centipede Snake Tantilla oaxacae
- Oaxacan Graceful Brown Snake Rhadinaea bogertorum
- Oaxacan Patchnose Snake Salvadora intermedia
- Ocellate Water Snake Hydraethiops laevis
- Ocellated Brown Snake Xenelaphis ellipsifer
- Ocellated Kukri Snake Oligodon ocellatus
- Ocellated Pampas Snake Tomodon ocellatus
- Ogaden Racer (somalicus) Platyceps somalicus
- Oligodon arenarius
- Oligodon cattienensis
- Oligodon condaoensis
- Olive Forest Racer Dendrophidion dendrophis
- Olive Keelback Helicops modestus
- Olive Keelback Wart Snake Atretium schistosum
- Olive Marsh Snake Natriciteres olivacea
- Olive Mountain Keelback Opisthotropis typica
- Olive Oriental Slender Snake Trachischium laeve
- Olive Small-eyed Snake Hydrablabes periops
- Olive Trapezoid Snake Rhabdops olivaceus
- Oliver's Bronzeback Dendrelaphis oliveri
- Oliver's Parrot Snake (coeruleodorsus) Leptophis coeruleodorsus
- Oliver's Parrot Snake (nebulosus) Leptophis nebulosus
- Omoadiphas aurula
- Omoadiphas cannula
- Omoadiphas texiguatensis
- Opisthotropis atra
- Opisthotropis cheni
- Orange-collared Keelback Rhabdophis himalayanus
- Orange-lipped Keelback Rhabdophis flaviceps
- Orangebelly Swamp Snake Tretanorhinus nigroluteus
- Oriental Odd-tooth Snake Lycodon orientalis
- Oriental Ratsnake Ptyas mucosa
- Oriente Black Groundsnake Arrhyton supernum
- Oriente Brown-capped Racerlet Arrhyton redimitum
- Ornate African Water Snake Grayia ornata
- Ornate Cat-eyed Snake Leptodeira ornata
- Ornate Green Snake Philothamnus ornatus
- Ornate Kukri Snake Oligodon ornatus
- Oswaldo Báez’ Snail-Eater Dipsas oswaldobaezi
- Ota's Wolf Snake Lycodon bibonius
- Oueimadas Blackhead Apostolepis gaboi
- Oxybelis transandinus
- Oxyrhopus emberti
- Pachacamac Ground Snake Atractus snethlageae
- Pacific Coast Centipede Snake Tantilla calamarina
- Pacific Coast Parrot Snake Leptophis diplotropis
- Pacific Longtail Snake Enulius flavitorques
- Pacific Patchnose Snake Salvadora lemniscata
- Padang Reed Snake Calamaria abstrusa
- Painted Bronzeback Dendrelaphis pictus
- Painted Keelback (cerasogaster) Xenochrophis cerasogaster
- Painted Keelback (picturatus) Tropidonophis picturatus
- Painted Wolf Snake Lycodon pictus
- Pakaraima Snail-eater Dipsas pakaraima
- Palaeoelaphe kansensis
- Palau Bronzeback Dendrelaphis striolatus
- Palawan bronzeback Dendrelaphis levitoni
- Palawan Kukri Snake Oligodon notospilus
- Palawan Worm Snake Calamaria palawanensis
- Pale Collared Scarlet Snake Pseudoboa martinsi
- Pale Ground Snake Urotheca decipiens
- Paleoheterodon arcuatus
- Paleoheterodon tiheni
- Palestine Kukri Snake Rhynchocalamus satunini
- Palm Egg Eater Dasypeltis palmarum
- Palmer’s Snail-Eater Dipsas palmeri
- Pampas Snake Tomodon dorsatus
- Pamplona Ground Snake Atractus pamplonensis
- Panama Spotted Night Snake Siphlophis cervinus
- Panamenian Earth Snake Geophis championi
- Panay Island Reed Snake Pseudorabdion talonuran
- Papua New Guinea Montane Keelback Tropidonophis statisticus
- Papuan Treesnake Dendrelaphis papuensis
- Paracoluber storeri
- Paradise Tree Snake Chrysopelea paradisi
- Paraguay Green Racer Philodryas nattereri
- Paraguayan Blackhead Apostolepis ambiniger
- Paraguayan Ground Snake Atractus paraguayensis
- Paraná False Boa Pseudoboa haasi
- Paraná Forest Snake Calamodontophis ronaldoi
- Paraxenophis spanios
- Parish's Fanged Snake Ialtris parishi
- Parker's Ground Snake Atractus carrioni
- Parrot Snake Leptophis ahaetulla
- Pará Blackhead Apostolepis nigrolineata
- Patagonia Green Racer Philodryas patagoniensis
- Pegu Kukri Snake Oligodon cruentatus
- Peninsula Glossy Snake Arizona pacata
- Peninsula Stripeless Snake Coniophanes meridanus
- Pere David's Rat Snake Elaphe davidi
- Periergophis micros
- Perkin's Short-headed Snake Oligodon perkinsi
- Persian Rat Snake Zamenis persicus
- Peru Burrowing Snake Apostolepis nigroterminata
- Peru Ground Snake Atractus peruvianus
- Peru Keelback Helicops yacu
- Peru Slender Snake Tachymenis peruviana
- Peru Snail-eater Dipsas peruana
- Peruvian Cat-eyed Snake Leptodeira larcorum
- Peten Centipede Snake (cuniculator) Tantilla cuniculator
- Peters' Black-headed Snake Tantilla petersi
- Peters' Earth Snake Geophis petersii
- Peters' Forest Racer Dendrophidion nuchale
- Peters' Keelback Hebius petersii
- Peters' Running Snake Coniophanes dromiciformis
- Petronella's Kukri Snake Oligodon petronellae
- Pfeffer's Reed Snake Calamaria pfefferi
- Pha-Ngan Kukri Snake Oligodon phangan
- Phalotris concolor
- Phalotris illustrator
- Phalotris lativittatus
- Phalotris multipunctatus
- Phalotris nasutus
- Phalotris sansebastiani
- Phalotris shawnella
- Phantasma Tree Snake Imantodes phantasma
- Philippi's Snail-eating Snake Tropidodipsas philippii
- Philippine Cat Snake Boiga philippina
- Philippine Dryocalamus Lycodon philippinus
- Philippine Dryophiops Dryophiops philippina
- Philippine Liopeltine Snake Liopeltis philippina
- Philippines Bronzeback Dendrelaphis philippinensis
- Philothamnus belli
- Philothamnus pobeguini
- Pigmy Snail Sucker Sibon sanniolus
- Pima Leafnose Snake Phyllorhynchus browni
- Pinchinda Snake Emmochliophis fugleri
- Pine Snake Pituophis melanoleucus
- Pine Woods Snake Rhadinaea flavilata
- Pine-Oak Snake Rhadinaea taeniata
- Pirmad Cat Snake Boiga dightoni
- Plainbelly Water Snake Nerodia erythrogaster
- Plains Blackhead Snake Tantilla nigriceps
- Plains Garter Snake Thamnophis radix
- Platyceps atayevi
- Platyceps schmidtleri
- Platyceps tessellata
- Plee's Tropical Racer Mastigodryas pleii
- Plin's Banded Racer Platyceps plinii
- Plumbeous Mussurana Clelia plumbea
- Pointed Ground Snake Atractus punctiventris
- Pointed Snake Uromacer oxyrhynchus
- Pointed Snout Reed Snake Calamaria acutirostris
- Pollackophis depressus
- Pope's Keelback Hebius popei
- Poppyfield Snailsucker Tropidodipsas papavericola
- Posada's Graceful Brown Snake Rhadinella posadasi
- Potosí Centipede Snake Tantilla shawi
- Potosí Earth Snake Geophis latifrontalis
- Prado's Coastal House Snake Thamnodynastes rutilus
- Prairie Kingsnake Lampropeltis calligaster
- Prakke's Reed Snake Calamaria prakkei
- Pratt's Snail-eater Dipsas pratti
- Principe Green Snake Hapsidophrys principis
- Problem Ground Snake Arcanumophis problematicus
- Pryer's Keelback Hebius pryeri
- Psammophis odysseus
- Pseudoboa krait
- Pseudorabdion torquatum
- Psomophis joberti
- Puebla Earth Snake Geophis turbidus
- Pueblan Centipede Snake Tantilla robusta
- Pueblan Graceful Brown Snake Rhadinaea quinquelineata
- Puerto Rican Racer Borikenophis portoricensis
- Puerto Rican Racer (prymnus) Borikenophis prymnus
- Puerto Rican Racer (variegatus) Borikenophis variegatus
- Puerto Rican Racerlet Magliophis stahli
- Puffing Snake Phrynonax poecilonotus
- Pulau Weh Kukri Snake Oligodon praefrontalis
- Purari Groundsnake Stegonotus aplini
- Pyburn's Earth Snake Geophis pyburni
- Pyburn's Tropical Forest Snake Erythrolamprus pyburni
- Pyron's Groundsnake Atractus pyroni
- Pöch's groundsnake Stegonotus poechi
- Qin Emperor Rat Snake Elaphe xiphodonta
- Queen Snake Regina septemvittata
- Racer Coluber constrictor
- Raddi's Lizard-eating Snake Elapomorphus quinquelineatus
- Radiated Ratsnake Coelognathus radiatus
- Rainbow Ground Snake Stegonotus iridis
- Rainbow Snake Farancia erytrogramma
- Rainbow Tree Snake Gonyosoma margaritatum
- Rainforest Cat-eyed Snake Leptodeira frenata
- Ramirez's Hooknose Snake Ficimia ramirezi
- Ravana's Rough-side Snake Aspidura ravanai
- Rebentisch's Reed Snake Calamaria rebentischi
- Rechinger's Dwarf Racer Eirenis rechingeri
- Recluse Wolf Snake Lycodon obvelatus
- Red Bamboo Snake Oreocryptophis porphyraceus
- Red Black-headed Snake Tantilla rubra
- Red Earth Centipede Snake Tantilla schistosa
- Red Earth Snake Geophis russatus
- Red Mountain Keelback Hebius sanguineus
- Red Snake Erythrolamprus ocellatus
- Red Whip Snake (collaris) Platyceps collaris
- Red Whip Snake (rubescens) Dryophiops rubescens
- Red-backed Rat Snake Oocatochus rufodorsatus
- Red-banded Snake Lycodon rufozonatus
- Red-bellied Keelback Rhabdophis conspicillatus
- Red-Bellied Racer Dolichophis schmidti
- Red-black Ground Snake Atractus erythromelas
- Red-eyed Whipsnake Ahaetulla rufusoculara
- Red-headed Forest Racer Dendrophidion rufiterminorum
- Red-headed Glasstail Urotheca fulviceps
- Red-headed Reed Snake Calamaria schlegeli
- Red-headed whip-snake Coluber rubriceps
- Red-lipped Snake Crotaphopeltis hotamboeia
- Red-necked Keelback Rhabdophis subminiatus
- Red-spotted Diadem Snake Spalerosophis arenarius
- Red-Tailed Racer Gonyosoma oxycephalum
- Redback Coffee Snake Ninia sebae
- Redbelly Earth Runner Chersodromus rubriventris
- Redbelly Snake Storeria occipitomaculata
- Reddish Rat Snake (erythrurus) Coelognathus erythrurus
- Reddish Rat Snake (philippinus) Coelognathus philippinus
- Reed-like Kukri Snake Oligodon calamarius
- Reinhardt's Burrowing Snake Apostolepis assimilis
- Rendahl's Wolf Snake Lycodon paucifasciatus
- Resplendent Ground Snake Atractus resplendens
- Resplendent Shovel-nosed Snake Sonora annulata
- Reticulate Ground Snake Atractus reticulatus
- Reticulate groundsnake Stegonotus reticulatus
- Rhade Wolf Snake Lycodon anakradaya
- Rhadinaea nuchalis
- Rhadinella anachoreta
- Rhadinella lisyae
- Rhadinella rogerromani
- Rhadinella tolpanorum
- Rhadinella xerophila
- Rhino Rat Snake Gonyosoma boulengeri
- Rhynchocalamus levitoni
- Ribbon Graceful Brown Snake Rhadinaea fulvivittis
- Ribboned Brittle-Snake Urotheca lateristriga
- Ridgehead Snake Manolepis putnami
- Rim Rock Crowned Snake Tantilla oolitica
- Ringed Centipede Snake Tantilla semicincta
- Ringed Hognose Snake Xenodon semicinctus
- Ringed Keelback Water Snake Trimerodytes annularis
- Ringed Kukri Snake Oligodon annulifer
- Ringed Snail Sucker Sibon annulatus
- Ringneck Coffee Snake Ninia diademata
- Ringneck Snake Diadophis punctatus
- Rio Grande de Santiago Nightsnake Hypsiglena affinis
- Rio Tropical Racer Palusophis bifossatus
- Rio Verde Nightsnake Hypsiglena tanzeri
- River Vine Snake Ahaetulla fronticincta
- Rivero's Ground Snake Atractus riveroi
- Road Guarder Conophis lineatus
- Roatan Long-tailed Snake Enulius roatanensis
- Roatan Vinesnake Oxybelis wilsoni
- Rodriguesophis chui
- Rodriguesophis scriptorcibatus
- Rogers' Racer Platyceps rogersi
- Rondonia Blackhead Apostolepis striata
- Rose Big-tooth Snake Lycodon rosozonatus
- Rosebelly Earth Snake Geophis rhodogaster
- Rosebelly Worm-eating Snake Trachischium guentheri
- Ross' Wolf Snake Lycodon chrysoprateros
- Rossman's Garter Snake Thamnophis rossmani
- Roth's Dwarf Snake Eirenis rothii
- Rough Coffee Snake Nothopsis rugosus
- Rough Earthsnake Haldea striatula
- Rough Greensnake Opheodrys aestivus
- Roule's Ground Snake Atractus roulei
- Royal Ground Snake Erythrolamprus reginae
- Royal snake Spalerosophis atriceps
- Roze's Coastal House Snake Thamnodynastes chimanta
- Rufous-headed Crown Snake Tantilla ruficeps
- Rusty-headed Snake Amastridium sapperi
- Rustyhead Snake Amastridium veliferum
- Rutherford's Brown Vine Snake Oxybelis rutherfordi
- Ruthven's Burrowing Snake Apostolepis tenuis
- Ruthven's Earth Snake Geophis ruthveni
- Ruthvens Kingsnake Lampropeltis ruthveni
- Rwanda Forest Green Snake Philothamnus ruandae
- Ryukyu Green Snake Ptyas semicarinata
- Ryukyu Odd-tooth snake Lycodon semicarinatus
- Ryukyu Wolf Snake Lycodon multifasciatus
- Saba Racer Alsophis rufiventris
- Sabah Keelback Hebius flavifrons
- Sahara Racer Platyceps saharicus
- Sahel Egg Eater Dasypeltis sahelensis
- Sahyadri Vine Snake Ahaetulla sahyadrensis
- Sai Yok Kukri Snake Oligodon saiyok
- Saint Croix Racer Borikenophis sanctaecrucis
- Saint Giron's Kukri Snake Oligodon saintgironsi
- Saint Lucia Racer Erythrolamprus ornatus
- Saint Vincent Racer Chironius vincenti
- Sakishima Green Snake Ptyas herminae
- Sallae's Earth Snake Geophis sallaei
- Salmon-bellied racer Mastigodryas melanolomus
- Salt Marsh Snake Nerodia clarkii
- Salvadora gymnorhachis
- Salvadora paleolineata
- Samarinda Reed Snake Calamaria hilleniusi
- San Andres Snake Coniophanes andresensis
- San Felipe Ground Snake Conopsis megalodon
- San Vincente Island Racer Arrhyton tanyplectum
- Sand dunes Blackhead Apostolepis arenaria
- Sand Snake (straminea) Sonora straminea
- Sang's Reed Snake Calamaria sangi
- Sangzhi Keelback Snake Hebius sangzhiensis
- Santa Catalina Kingsnake Lampropeltis catalinensis
- Santa Cruz Garter Snake Thamnophis atratus
- Santa Cruz Racer Pseudalsophis dorsalis
- Santiago Racer Pseudalsophis hephaestus
- Sao Paulo False Coral Snake Simophis rhinostoma
- Sao Paulo Ground Snake Atractus serranus
- Sao Paulo Keelback Helicops gomesi
- Sao Tome Wood Snake Philothamnus thomensis
- Saphenophis Snake Saphenophis sneiderni
- Sarasin's Keelback Hebius sarasinorum
- Sarasin's Reed Snake Pseudorabdion sarasinorum
- Sarawak Keelback Hebius sarawacensis
- Sarawak Reed Snake Pseudorabdion saravacense
- Sargent's Graceful Brown Snake Rhadinaea sargenti
- Sargi's Earth Snake Adelphicos sargii
- Sarso Island Racer Platyceps insulanus
- Sauvage's Snail-eater Dipsas albifrons
- Savage's Earth Snake Geophis downsi
- Savage's Groundsnake Atractus savagei
- Savage's Sand Snake Sonora savagei
- Savannah Racer Erythrolamprus aenigma
- Sawtooth-necked Bronzeback Dendrelaphis nigroserratus
- Scarce Bridal Snake Lycodon gracilis
- Scarlet Kingsnake Lampropeltis elapsoides
- Scarlet Snake Cemophora coccinea
- Schach's Ground Snake Atractus schach
- Schlegel's Golden Snake Cercophis auratus
- Schmidt's Bold-eyed Tree Snake Thrasops schmidti
- Schmidt's Green Racer Incaspis tachymenoides
- Schmidt's Reed Snake Calamaria schmidti
- Schott's Whipsnake Masticophis schotti
- Schouteden's Sun Snake Helophis schoutedeni
- Schultz' Blunt-headed Tree Snake Boiga schultzei
- Schulz's Reed Snake Macrocalamus schulzi
- Schunk's Snail-eater Dipsas schunkii
- Schätti's Racer Platyceps messanai
- Scortecci Racer Platyceps scortecci
- Scortecci's Diadem Snake Spalerosophis josephscorteccii
- Seale’s Banded Asian Wolf Snake Lycodon sealei
- Semau Island groundsnake Stegonotus lividus
- Semiornate Smooth Snake Meizodon semiornatus
- Senegalese Egg Eater Dasypeltis latericia
- Seram Bronzeback Dendrelaphis grismeri
- Serra do Cariri Snail Eater Dipsas bothropoides
- Serra Snake Tropidodryas serra
- Serrate-banded Wolf Snake Lycodon serratus
- Seychelles Wolf Snake Lycognathophis seychellensis
- Shangri-La Hot Spring Snake Thermophis shangrila
- Sharma's Racer Platyceps bholanathi
- Sharptail Snake Contia tenuis
- Shaw's Dark Ground Snake Erythrolamprus melanotus
- Shenzhen Mountain Stream Snake Opisthotropis shenzhenensis
- Short Ground Snake Erythrolamprus breviceps
- Short Racer Platyceps brevis
- Short-nosed Groundsnake Taeniophallus brevirostris
- Short-snouted Tree Snake Dipsadoboa brevirostris
- Short-tail Alpine Garter Snake Thamnophis scaliger
- Short-tailed Snake Lampropeltis extenuata
- Shorthead Garter Snake Thamnophis brachystoma
- Shorthead Kukri Snake Oligodon brevicauda
- Shreve's Keelback Helicops pastazae
- Shreve's Tree Snake Dipsadoboa shrevei
- Shropshire's Puffing Snake Phrynonax shropshirei
- Sibon manzanaresi
- Sibon merendonensis
- Sibon miskitus
- Sibon noalamina
- Sibon perissostichon
- Sichuan Hot-Spring Keelback Thermophis zhaoermii
- Sichuan Mountain Keelback Opisthotropis latouchii
- Sichuan Wolf Snake Lycodon liuchengchaoi
- Siebold's Earth Snake Geophis sieboldi
- Sierra Coalcoman Earth Snake Geophis incomptus
- Sierra Juarez Earth Snake Geophis duellmani
- Sierra Mije Earth Snake Geophis anocularis
- Sikkim Keelback Herpetoreas sieboldii
- Simla Coffeesnake Ninia franciscoi
- Simon's Racer Incaspis simonsii
- Sinai catsnake Telescopus hoogstraali
- Sinai dwarf racer Eirenis coronelloides
- Sinai Racer Platyceps sinai
- Sinaloan lyresnake Trimorphodon paucimaculatus
- Sindh Awl-headed Snake Lytorhynchus paradoxus
- Sindh Racer Platyceps sindhensis
- Singalang Keelback Rhabdophis akraios
- Sinharaja tree snake Dendrelaphis effrenis
- Sipo (carinatus) Chironius carinatus
- Sipo (flavopictus) Chironius flavopictus
- Sirambé dwarf reed snake Pseudorabdion sirambense
- Sivaophis downsi
- Slatey-grey Snake (cucullatus) Stegonotus cucullatus
- Slatey-grey Snake (parvus) Stegonotus parvus
- Slaty-grey snake Stegonotus australis
- Slavens' Centipede Snake Tantilla slavensi
- Slender Forest-Racer Dendrophidion graciliverpa
- Slender Green Snake Philothamnus heterolepidotus
- Slender Racer Orientocoluber spinalis
- Slender Reed Snake Calamaria gracillima
- Slender Snail Sucker Sibon dimidiatus
- Slender Snake Tachymenis tarmensis
- Slevin's Tropical Ground Snake Trimetopon slevini
- Slowinski's Cornsnake Pantherophis slowinskii
- Smith's African Water Snake Grayia smithii
- Smith's Black-headed Snake Tantilla hobartsmithi
- Smith's Mountain Keelback Opisthotropis spenceri
- Smooth Earth Snake Virginia valeriae
- Smooth Green Snake Opheodrys vernalis
- Smooth Snake Coronella austriaca
- Smooth-scaled Mountain Rat Snake Ptyas luzonensis
- Snail-eating Thirst Snake Dipsas brevifacies
- Snake-Eater Wolf Snake Lycodon ophiophagus
- Socotran Racer Hemerophis socotrae
- Somali Snake Aeluroglena cucullata
- Sonoran Lyre Snake Trimorphodon lambda
- Sonoran Mountain Kingsnake Lampropeltis pyromelana
- Sonoran Shovelnose Snake Sonora palarostris
- Sonoran Whipsnake Masticophis bilineatus
- Soosan Viper Telescopus tessellatus
- South American Forest Racer Dendrophidion percarinatum
- South American Hognose Snake Xenodon dorbignyi
- South American Pond Snake (plicatilis) Pseudoeryx plicatilis
- South American Pond Snake (relictualis) Pseudoeryx relictualis
- South American Sipo (foveatus) Chironius foveatus
- South American Sipo (multiventris) Chironius multiventris
- South American Sipo (septentrionalis) Chironius septentrionalis
- South Florida Mole Kingsnake Lampropeltis occipitolineata
- Southeast Brazilian Sipo Chironius brazili
- Southeastern Crowned Snake Tantilla coronata
- Southeastern Scarlet Snake Pseudoboa serrana
- Southern Bronzeback Dendrelaphis grandoculis
- Southern Brown Egg Eater Dasypeltis inornata
- Southern Durango Spotted Garter Snake Thamnophis nigronuchalis
- Southern Ground Snake Atractus trihedrurus
- Southern Hognose Snake Heterodon simus
- Southern Red-banded Snake Lycodon meridionale
- Southern Reticulated Collared Snake Phalotris reticulatus
- Southern Sharpnose Snake Xenoxybelis boulengeri
- Southern Smooth Snake Coronella girondica
- Southern Striped Snake Lygophis meridionalis
- Southern Water Snake Nerodia fasciata
- Southwestern Cat-eyed Snake Leptodeira maculata
- Southwestern Forest Marsh Snake Natriciteres bipostocularis
- Spatula-tooth Snake Iguanognathus werneri
- Specklebelly Keelback Rhabdophis chrysargos
- Speckled Dwarf Short-tail Snake Tantillita brevissima
- Speckled Ground Snake Atractus ventrimaculatus
- Speckled Kingsnake Lampropeltis holbrooki
- Speckled Racer Drymobius margaritiferus
- Sphalerosophis microlepis
- Spiral Keelback Helicops petersi
- Spirit Ground Snake Psomophis genimaculatus
- Spix's Sipo Chironius spixii
- Splendid Cat-eyed Snake Leptodeira splendida
- Splendid Kukri Snake Oligodon splendidus
- Spotted Bush Snake Philothamnus semivariegatus
- Spotted Coffee Snake Ninia maculata
- Spotted Dagger-tooth Tree Snake Rhamnophis batesii
- Spotted Desert Racer Platyceps karelini
- Spotted Genuine-Snake Saphenophis boursieri
- Spotted Green Snake Philothamnus punctatus
- Spotted Ground Snake Atractus maculatus
- Spotted Keelback Xenochrophis maculatus
- Spotted Keelback Water Snake Fowlea punctulatus
- Spotted Kukri Snake Oligodon maculatus
- Spotted Leafnose Snake Phyllorhynchus decurtatus
- Spotted Mountain Stream Snake Opisthotropis maculosa
- Spotted Water Snake Tropidonophis dendrophiops
- Spotted Whip Snake Hemorrhois ravergieri
- Spotted Whipsnake Ahaetulla fasciolata
- Sri Lanka Cat Snake Boiga ceylonensis
- Sri Lanka Rough-sided Snake Aspidura deraniyagalae
- Sri Lankan Bridle Snake Lycodon chithrasekarai
- St. John's Keelback Fowlea sanctijohannis
- St. Marta's Ground Snake Atractus sanctaemartae
- Stadelman's Pine Woods Snake Rhadinella stadelmani
- Steinbach's Snake Baliodryas steinbachi
- Stejneger's Bamboo Snake Pseudoxenodon stejnegeri
- Stejneger's Snail Sucker Sibon longifrenis
- Stolickza's Ringneck Liopeltis stoliczkae
- Stoliczk's Tawny Cat Snake Boiga stoliczkae
- Striped Centipede Snake Tantilla striata
- Striped Crayfish Snake Liodytes alleni
- Striped Dwarf Snake Eirenis lineomaculatus
- Striped Galapagos Snake Pseudalsophis steindachneri
- Striped glasstail Urotheca guentheri
- Striped Ground Snake Atractus vertebrolineatus
- Striped Keelback Xenochrophis vittatus
- Striped Kukri Snake Oligodon taeniatus
- Striped Litter Snake Rhadinella serperaster
- Striped Lizard Eater Mastigodryas dorsalis
- Striped Lowland Snake Leptodrymus pulcherrimus
- Striped Racer Masticophis lateralis
- Striped Ringneck Gongylosoma baliodeira
- Striped Road Guarder Conophis vittatus
- Striped Swamp Snake Tretanorhinus taeniatus
- Striped Vine Snake Oxybelis vittatus
- Striped Whipsnake Masticophis taeniatus
- Striped Wood Snake Philothamnus dorsalis
- Striped- belly reed snake Calamaria strigiventris
- Stripeless Snake Coniophanes lateritius
- Stuart's Burrowing Snake Adelphicos veraepacis
- Stuart's Graceful Brown Snake Rhadinella pilonaorum
- Sulawesi Black Racer Ptyas dipsas
- Sulawesi Iridescent Snake Calamorhabdium acuticeps
- Sulawesi Keelback Hebius celebicus
- Sulawesi Wolf Snake Lycodon stormi
- Sulu Bronzeback Dendrelaphis flavescens
- Sulu Short-headed Snake Oligodon meyerinkii
- Sumatra Dwarf Snake Calamaria sumatrana
- Sumatra Etheridge Snake Etheridgeum pulchrum
- Sumatran Dark-gray Ground Snake Elapoidis sumatrana
- Sumatran Keelback Anoplohydrus aemulans
- Sumatran Stream Snake Opisthotropis rugosa
- Sumba Ground Snake Stegonotus sutteri
- Sumichrast's Garter Snake Thamnophis sumichrasti
- Sunda Rat Snake Coelognathus subradiatus
- Surat Thani Kukri Snake Oligodon promsombuti
- Sushanta’s Worm-eating Snake Trachischium sushantai
- Swamp Keelback Helicops nentur
- Swamp Liophis Erythrolamprus frenatus
- Swan Island Racer Cubophis brooksi
- Szechwan Rat Snake Euprepiophis perlaceus
- São Paulo Reticulated Collared Snake Phalotris mertensi
- São Salvador burrow-snake Apostolepis adhara
- Taeniophallus affinis
- Taeniophallus bilineatus
- Taeniophallus nebularis
- Taeniophallus nicagus
- Taeniophallus occipitalis
- Taeniophallus persimilis
- Taeniophallus poecilopogon
- Taeniophallus quadriocellatus
- Taiwan Keelback Rhabdophis swinhonis
- Taiwan Stink Snake Elaphe carinata
- Talamanca Forest Racer Dendrophidion crybelum
- Talamanca Glasstail Snake Urotheca myersi
- Talamancan Earth Snake Geophis talamancae
- Tam Dao Stream Snake Opisthotropis tamdaoensis
- Tamaulipan Montane Garter Snake Thamnophis mendax
- Tan Ground Snake Erythrolamprus perfuscus
- Tana Delta Smooth Snake Meizodon krameri
- Tana Herald Snake Crotaphopeltis braestrupi
- Tanahjampea Cat Snake Boiga tanahjampeana
- Tantilla armillata
- Tantilla boipiranga
- Tantilla excelsa
- Tantilla gottei
- Tantilla psittaca
- Tantilla stenigrammi
- Tantilla tjiasmantoi
- Tapajós Keelback Helicops tapajonicus
- Tarascan Earth Snake Geophis tarascae
- Taron Keelback Hebius taronensis
- Tawny Cat Snake (ochracea) Boiga ochracea
- Taylor's Burrowing Snake Pseudorabdion taylori
- Taylor's Egg-eater Dasypeltis taylori
- Taylor's Racer Platyceps taylori
- Taylor's Snaileater Dipsas tenuissima
- Taylor’s Ground Snake Sonora taylori
- Tearful Pine-Oak Snake Rhadinella lachrymans
- Tehuantepec Hooknose Snake Ficimia variegata
- Tehuantepec Striped Snake Geagras redimitus
- Temporal Snail-eater Dipsas temporalis
- Tengchong Keelback Snake Hebius septemlineatus
- Tepalcatepec Valley Gartersnake Thamnophis postremus
- Terre-de-Bas Racer Alsophis danforthi
- Terre-de-Haut Racer Alsophis sanctonum
- Terrestrial Snail Sucker Tropidodipsas sartorii
- Terrific Bronzeback Dendrelaphis terrificus
- Texas Lyre Snake Trimorphodon vilkinsonii
- Texas Patchnose Snake Salvadora lineata
- Texas Scarlet Snake Cemophora lineri
- Texiguat Centipede Snake Tantilla olympia
- Teynié’s Kukri Snake Oligodon teyniei
- Thackeray's cat snake Boiga thackerayi
- Thales De Lema's Tellurian Snake Atractus thalesdelemai
- Thamnodynastes almae
- Thamnodynastes ceibae
- Thamnodynastes chaquensis
- Thamnodynastes corocoroensis
- Thamnodynastes dixoni
- Thamnodynastes duida
- Thamnodynastes gambotensis
- Thamnodynastes hypoconia
- Thamnodynastes lanei
- Thamnodynastes longicauda
- Thamnodynastes marahuaquensis
- Thamnodynastes nattereri
- Thamnodynastes paraguanae
- Thamnodynastes phoenix
- Thamnodynastes ramonriveroi
- Thamnodynastes sertanejo
- Thamnodynastes silvai
- Thamnodynastes yavi
- Thanh's Reed Snake Calamaria thanhi
- Theobald's Kukri Snake Oligodon theobaldi
- Thick Graceful Brown Snake Rhadinaea calligaster
- Thick Reed Snake Calamaria crassa
- Thickhead Ground Snake Atractus crassicaudatus
- Thin Ground Snake Erythrolamprus taeniurus
- Thirteen-scaled Green Snake Philothamnus carinatus
- Tholloni's African Water Snake Grayia tholloni
- Thomas' Racer Pseudalsophis thomasi
- Thomas' Semi-banded Racer Platyceps thomasi
- Thornscrub Vine Snake Oxybelis microphthalmus
- Thrasops aethiopissa
- Three-Banded Bridled Snake Lycodon tristrigatus
- Three-banded Centipede Snake Tantilla tritaeniata
- Three-banded Ground Snake Atractus trivittatus
- Three-lined Centipede Snake (trilineata) Tantilla trilineata
- Three-lined Centipede Snake (triseriata) Tantilla triseriata
- Three-lined Ground Snake Atractus trilineatus
- Three-lined Kukri Snake Oligodon trilineatus
- Three-scaled Ground Snake Erythrolamprus triscalis
- Three-striped Smooth Ground Snake Saphenophis tristriatus
- Tiburon Hognosed Racer Hypsirhynchus scalaris
- Tiger Cat Snake Telescopus semiannulatus
- Tiger Keelback Rhabdophis tigrinus
- Tillack's Kukri Snake Oligodon tillacki
- Timor Ground Snake Stegonotus nancuro
- Tioman Kukri Snake Oligodon booliati
- Tioman Reed Snake Calamaria ingeri
- Tiwar's Bronzeback Dendrelaphis humayuni
- Tobago Stream Snake Erythrolamprus pseudoreginae
- Tocantins Blackhead Apostolepis sanctaeritae
- Tolaki Kukri Oligodon tolaki
- Tomodon orestes
- Tonkin Keelback Hebius atemporalis
- Tonkin Mountain Keelback Opisthotropis lateralis
- Tornier's Cat Snake Crotaphopeltis tornieri
- Trans-pecos Ratsnake Bogertophis subocularis
- Transcaucasian Rat Snake Zamenis hohenackeri
- Travancore Kukri Snake Oligodon travancoricus
- Travancore Whipsnake Ahaetulla travancorica
- Travancore Wolf Snake Lycodon travancoricus
- Triangle Keelback Xenochrophis trianguligerus
- Triangle Many-tooth Snake Sibynophis triangularis
- Triangle Water Snake Hydrops triangularis
- Tricolor Snailsucker Tropidodipsas tricolor
- Tricolored Burrowing Snake Phalotris tricolor
- Trigonocephalus cenchris
- Trigonocephalus lancifer
- Trinidad Snail-eater Dipsas trinitatis
- Trinket Snake Coelognathus helena
- Tropical Flat Snake Siphlophis compressus
- Tropical Forest Snake Calamodontophis paucidens
- Tropical Snail-eater Dipsas sanctijoannis
- Tropidodipsas repleta
- Tropidonophis dolasii
- Tropidonophis halmahericus
- Troschel's Pampas Snake Phimophis guianensis
- Truong’s wolf snake Lycodon truongi
- Tschudi's False Coral Snake Oxyrhopus melanogenys
- Tweedie's Reed Snake Macrocalamus tweediei
- Twig Snake Thelotornis capensis
- Twin-barred Tree Snake Chrysopelea pelias
- Twin-spotted Tolucan Ground Snake Conopsis amphisticha
- Twin-spotted Wolf Snake Lycodon jara
- Two-colored Mussurana Mussurana bicolor
- Two-colored Snail-eater Dipsas bicolor
- Two-headed Sipo Chironius bicarinatus
- Two-lined Ground Snake Atractus biseriatus
- Two-lined Mexican Earth Snake Conopsis biserialis
- Two-spotted Snake Coniophanes bipunctatus
- Two-striped Garter Snake Thamnophis hammondii
- Typhon Ground Snake Atractus typhon
- Ulmer's Reed Snake Calamaria ulmeri
- Underwood's Bronzeback Snake Dendrelaphis underwoodi
- Underwood's Mussurana Clelia errabunda
- Underwood's Tree Snake Dipsadoboa underwoodi
- Unicolor Kukri Snake Oligodon unicolor
- Urartian Rat Snake Elaphe urartica
- Uribe's False Cat-eyed Snake Leptodeira uribei
- Urotheca dumerilli
- Urotheca multilineata
- Uruguayan Sipo Chironius gouveai
- Usambara Green Snake Philothamnus macrops
- Usambara Vine Snake Thelotornis usambaricus
- Van Dwarf Racer Eirenis thospitis
- Vanzolini's Ground Snake Lygophis vanzolinii
- Variable Cat Snake Telescopus variegatus
- Variable Marsh Snake (pembana) Natriciteres pembana
- Variable Marsh Snake (variegata) Natriciteres variegata
- Variable Reed Snake Calamaria lumbricoidea
- Variable Snake Platyceps variabilis
- Variegated False Coral Snake Pliocercus elapoides
- Variegated Ground Snake Atractus variegatus
- Variegated Snail-eater Dipsas variegata
- Velasco Blackhead Apostolepis phillipsae
- Vellore Bridal Snake Lycodon nympha
- Velvet Swampsnake Erythrolamprus typhlus
- Velvety Swamp Snake Erythrolamprus torrenicola
- Venezuela Ground Snake Atractus duidensis
- Venezuela Snail-eater Dipsas latifrontalis
- Venezuelan Snail-eater Dipsas praeornata
- Veracruz Earth Snake Geophis chalybeus
- Veracruz Graceful Brown Snake Rhadinaea cuneata
- Vermiculate Graceful Brown Snake Rhadinaea vermiculaticeps
- Vermiculate Snail-eater Dipsas vermiculata
- Vertebral Ground Snake Atractus vertebralis
- Vertebral Kukri Snake Oligodon vertebralis
- Vieira's Snail-eating Snake Sibon vieirai
- Vietnam Water Snake Hebius chapaensis
- Vietnamese Large-toothed Snake Lycodon meridionalis
- Viper-like Keelback Hebius viperinus
- Viperine Snake Natrix maura
- Viquez's Tropical Ground Snake Trimetopon viquezi
- Vo Quy’s Mountain Stream Keelback Opisthotropis voquyi
- Vogel's Bronzeback Dendrelaphis vogeli
- Vogel's Reed Snake Macrocalamus vogeli
- Volcan Tacana Centipede Snake Tantilla tayrae
- Vud's Bahamian Racer Cubophis vudii
- Vulcan Centipede Snake Tantilla vulcani
- Wa Shan Keelback Hebius metusia
- Wadi Racer Platyceps rhodorachis
- Wagler's Ground Snake Atractus wagleri
- Wagler's Sipo Chironius scurrulus
- Wagler's Snake Xenodon merremii
- Wagner's Kukri Snake Oligodon wagneri
- Walker's Slender Snake Tachymenis attenuata
- Wall's Bronzeback Dendrelaphis cyanochloris
- Wall's Cat Snake Boiga walli
- Wall's Keelback Herpetoreas xenura
- Wall's Vine Snake Ahaetulla isabellina
- Wallace's Racer Wallaceophis gujaratensis
- Walnut Kukri Snake Oligodon juglandifer
- Water Rhabdops Rhabdops aquaticus
- Webb's Kingsnake Lampropeltis webbi
- Weiler's Tree Snake Dipsadoboa weileri
- Weixi Keelback Snake Hebius weixiensis
- Welborn’s Snail-eating Snake Dipsas welborni
- Werner's Diadem Snake Spalerosophis dolichospilus
- Werner's False Coral Snake Oxyrhopus leucomelas
- Werner's Green Tree Snake Dipsadoboa werneri
- Werner's Ground Snake Atractus werneri
- Werner's Thirst Snake Dipsas maxillaris
- West Coast Garter Snake Thamnophis validus
- Western Aquatic Garter Snake Thamnophis couchii
- Western Blackhead Snake Tantilla planiceps
- Western Cat-eyed Snake Leptodeira punctata
- Western Crowned Snake Meizodon coronatus
- Western Dwarf Racer Eirenis occidentalis
- Western False Smooth Snake Macroprotodon brevis
- Western Foxsnake Pantherophis ramspotti
- Western Ghats Bronzeback Ahaetulla perroteti
- Western Graceful Brown Snake Rhadinaea hesperia
- Western Green Snake Philothamnus angolensis
- Western Ground Snake Atractus occidentalis
- Western Hognose Snake Heterodon nasicus
- Western Hooknose Snake Gyalopion canum
- Western Natal Green Snake Philothamnus occidentalis
- Western Patchnose Snake Salvadora hexalepis
- Western Ribbonsnake Thamnophis proximus
- Western Shovelnose Snake Sonora occipitalis
- Western Snail-eating Snake Tropidodipsas annulifera
- Western Terrestrial Garter Snake Thamnophis elegans
- Western Tree Snake Imantodes inornatus
- Western Whip Snake Hierophis viridiflavus
- Western Worm Snake Carphophis vermis
- White-banded Wolf Snake Lycodon septentrionalis
- White-bellied Rat Snake Ptyas fusca
- White-bellied Reed Snake Calamaria albiventer
- White-collared Reed Snake Pseudorabdion albonuchalis
- White-eyed Keelback Amphiesmoides ornaticeps
- White-lined Water Snake Rhabdophis auriculatus
- White-lipped Keelback Hebius leucomystax
- White-striped Centipede Snake Tantilla tecta
- White-striped Reed Snake Calamaria lateralis
- White-striped Snake Sibynophis bivittatus
- Wickramasinghes Bronzeback Dendrelaphis wickrorum
- Wide Ground Snake Psomophis obtusus
- Widecollar Earth Snake Geophis laticollaris
- Wied's Keelback Helicops carinicaudus
- Williams' Ground Snake Erythrolamprus williamsi
- Williams' Tree Snake Dipsas williamsi
- Woodmason's Kukri Snake Oligodon woodmasoni
- Worontzow's Spotted Night Snake Siphlophis worontzowi
- Wucherer's Ground Snake Xenopholis scalaris
- Wucherer's Lizard-eating Snake Elapomorphus wuchereri
- Wynad Keelback Hebius monticola
- Xenopholis werdingorum
- Xizang Hot-spring Keel-back Thermophis baileyi
- Yabassi Tree Snake Dipsadoboa duchesnii
- Yaeyama Keelback Hebius ishigakiensis
- Yanbian Keelback Snake Hebius yanbianensis
- Yaqui Black-headed Snake Tantilla yaquia
- Yellow striped Snake Coelognathus flavolineatus
- Yellow-bellied Reed Snake Calamaria suluensis
- Yellow-bellied Snake Erythrolamprus poecilogyrus
- Yellow-collared Wolf Snake Lycodon flavicollis
- Yellow-flanked Snake Crotaphopeltis degeni
- Yellow-green Cat Snake Boiga flaviviridis
- Yellow-headed Sipo Chironius leucometapus
- Yellow-lined Centipede Snake Tantilla flavilineata
- Yellow-red Rat Snake Pseudelaphe flavirufa
- Yellow-spotted Ground Snake Atractus duboisi
- Yellow-spotted Keelback Water Snake Fowlea flavipunctatus
- Yellow-spotted Wolf Snake Lycodon flavomaculatus
- Yellow-throated Bold-eyed Tree Snake Thrasops flavigularis
- Yellow-throated gartersnake Thamnophis pulchrilatus
- Yellowbelly Snake Coniophanes fissidens
- Yellowbelly Worm-eating Snake Trachischium tenuiceps
- Youjiang Keelback Snake Hebius youjiangensis
- Yucatan Rat Snake Pseudelaphe phaescens
- Yucatecan Dwarf Short-tail Snake Tantillita canula
- Yucatán Blunthead Snake Imantodes tenuissimus
- Yucatán White-lipped Snake Symphimus mayae
- Yunnan Annulate Keelback Trimerodytes yunnanensis
- Yunnan keelback Hebius clerki
- Yunnan Keelback Hebius parallelum
- Yunnan Olive Keelback Fowlea yunnanensis
- Yunnan Reed Snake Calamaria yunnanensis
- Zaher's Shadow Snake Synophis zaheri
- Zamboanga Burrowing Snake Pseudorabdion ater
- Zamenis hungaricus
- Zamoran Shadow Snake Synophis zamora
- Zaocys dhumnades
- Zapata Long-tailed Groundsnake Arrhyton procerum
- Zaw's Wolf Snake Lycodon zawi
- Zayu Wolf Snake Lycodon zayuensis
- Zebra Snake Spalerosophis microlepis
- Zelceophis xenos
- Zertuche's Earth Snake Geophis juliai
- ZGAP Ground Snake Atractus zgap
- Zhao's Mountain Stream Snake Opisthotropis zhaoermii
- Zidok's Ground Snake Atractus zidoki
- Zigzag-lined Water Snake Rhabdophis lineatus
- Zilantophis schuberti
- Zoige Ratsnake Elaphe zoigeensis
- Zoos Victoria's Wolf Snake Lycodon zoosvictoriae
- Zweifel's Ground Snake Erythrolamprus zweifeli
- Zweifel's Snail-eating Snake Tropidodipsas zweifeli
- 张氏后棱蛇 Opisthotropis hungtai
Cylindrophiidae 16
- Aru Cylinder Snake Cylindrophis aruensis
- Black Pipe Snake Cylindrophis melanotus
- Blanford's Pipe Snake Cylindrophis lineatus
- Boano Pipesnake Cylindrophis osheai
- Boulenger's Pipe Snake Cylindrophis boulengeri
- Burmese Pipe-Snake Cylindrophis burmanus
- Ceylonese Cylinder Snake Cylindrophis maculatus
- Cylindrophis resplendens
- Cylindrophis subocularis
- Engkari Pipe Snake Cylindrophis engkariensis
- Island Pipe Snake Cylindrophis opisthorhodus
- Jampea Island Pipe Snake Cylindrophis isolepis
- Jodi's Pipe-Snake Cylindrophis jodiae
- Red-tailed Pipe Snake Cylindrophis ruffus
- Slowinski's pipe snake Cylindrophis slowinskii
- Yamdena Pipe Snake Cylindrophis yamdena
Dipsadidae 2
- Eridiphas marcosensis
- Sao Paulo Sharp Snake Uromacerina ricardinii
Elapidae 406
- African Cobra Naja pallida
- African Garter Snake Elapsoidea sundevallii
- African Tree Cobra Pseudohaje goldii
- Alecto inflata
- Allen's Coral Snake Micrurus alleni
- Amazon Coral Snake Micrurus spixii
- Anchieta's Cobra Naja anchietae
- Andaman Cobra Naja sagittifera
- Andean Blackback Coral Snake Micrurus narduccii
- Angolan Garter Snake Elapsoidea semiannulata
- Annellated Coral Snake Micrurus annellatus
- Annulated Sea Snake Hydrophis cyanocinctus
- Anomalous Sea Snake Hydrophis anomalus
- Aquatic Coral Snake Micrurus surinamensis
- Arabian Cobra Naja arabica
- Arabian Gulf Sea Snake Hydrophis lapemoides
- Arafura Sea Snake Aipysurus tenuis
- Arafura Smooth Seasnake Parahydrophis mertoni
- Argentinian Coral Snake Micrurus pyrrhocryptus
- Arnhem Shovel-nosed Snake Brachyurophis morrisi
- Ashe's Spitting Cobra Naja ashei
- Australian black snake Pseudechis porphyriacus
- Balsas Coral Snake Micrurus laticollaris
- Banded Krait Bungarus fasciatus
- Bandy Bandy Vermicella annulata
- Bardick Echiopsis curta
- Barkly Tableland Death Adder Acanthophis hawkei
- Barred Coral Snake (calligaster) Hemibungarus calligaster
- Barred Coral Snake (gemianulis) Hemibungarus gemianulis
- Beddome's Coral Snake Calliophis beddomei
- Belcher's Sea Snake Hydrophis belcheri
- Bibron's Coral Snake Calliophis bibroni
- Bighead Sea Snake Hydrophis annandalei
- Black Coral Snake Calliophis nigrescens
- Black forest cobra Naja guineensis
- Black forest snake Toxicocalamus atratus
- Black Garter Snake Elapsoidea nigra
- Black Mamba Dendroaspis polylepis
- Black Whip Snake Demansia vestigiata
- Black-banded Sea Snake Hydrophis nigrocinctus
- Black-headed Coral Snake Micrurus averyi
- Black-headed seasnake Hydrophis atriceps
- Black-necked Spitting Cobra Naja nigricollis
- Black-necked Whipsnake Demansia calodera
- Black-striped Snake (nigrostriatus) Cryptophis nigrostriatus
- Blood-bellied Coralsnake Calliophis haematoetron
- Blue Coral Snake Calliophis bivirgatus
- Blue Krait Bungarus candidus
- Bogert's Coral Snake Micrurus bogerti
- Boicora Coral Snake Micrurus boicora
- Bolivian Coral Snake (obscurus) Micrurus obscurus
- Bolivian Coral Snake (serranus) Micrurus serranus
- Bombay Sea Snake Hydrophis mamillaris
- Bougainville coral snake Parapistocalamus hedigeri
- Boulenger's Garter Snake Elapsoidea boulengeri
- Brazilian Coral Snake Micrurus decoratus
- Brazilian coralsnake Micrurus brasiliensis
- Broad-headed Snake Hoplocephalus bungaroides
- Broad-ringed Coral Snake Micrurus latifasciatus
- Broadley's Garter Snake Elapsoidea broadleyi
- Brook's Sea Snake Hydrophis brookii
- Brown Forest Cobra Naja subfulva
- Brown's Coral Snake Micrurus browni
- Buerger's Forest Snake Toxicocalamus buergersi
- Bungarus romulusi
- Burmese Krait Bungarus magnimaculatus
- Bush’s Hooded Snake Suta spectabilis
- Butler's Snake Pseudechis butleri
- Caatinga Coral Snake Micrurus ibiboboca
- Camila's Coralsnake Micrurus camilae
- Cantor's Narrow-headed Sea Snake Hydrophis cantoris
- Cape Cobra Naja nivea
- Capuchin coral snake Micrurus dumerilii
- Carib Coral Snake Micrurus psyches
- Carpentaria Whip Snake Cryptophis boschmai
- Castoe's Coralsnake Calliophis castoe
- Catamayo Coral Snake Micrurus catamayensis
- Cauca Coral Snake Micrurus multiscutatus
- Central American Coral Snake Micrurus nigrocinctus
- Central Asian Cobra Naja oxiana
- Centralian Bandy Bandy Vermicella vermiformis
- Ceylon Krait Bungarus ceylonicus
- Chinese Cobra Naja atra
- Chinese Sea Snake Laticauda semifasciata
- Chocó Coral Snake Micrurus spurrelli
- Christy's Water Cobra Naja christyi
- Clark's Coral Snake Micrurus clarki
- Cloud Forest Coral Snake Micrurus nebularis
- Cloudy Mountains Forest Snake Toxicocalamus pachysomus
- Coastal Burrowing Snake Simoselaps littoralis
- Coastal Taipan Oxyuranus scutellatus
- Cogger's sea snake Hydrophis coggeri
- Collared Sea Snake Hydrophis stricticollis
- Collared Whip Snake Demansia torquata
- Collett's Snake Pseudechis colletti
- Common Death Adder Acanthophis antarcticus
- Common Krait Bungarus caeruleus
- Common sea krait Laticauda laticaudata
- Common Seasnake Hydrophis schistosus
- Copperhead Snake Austrelaps superbus
- Coral Shield Cobra Aspidelaps lubricus
- Coral Snake Brachyurophis australis
- Costa Rican Coral Snake Micrurus mosquitensis
- Crocker's Sea Snake Laticauda crockeri
- Crowned Snake Elapognathus coronatus
- Dampierland Burrowing Snake Simoselaps minimus
- Dark Blue-Banded Sea Snake Polyodontognathus caerulescens
- De Vis Banded Snake Denisonia devisi
- Desert Banded Snake Simoselaps bertholdi
- Desert Cobra Walterinnesia aegyptia
- Desert Coral Snake Micrurus tschudii
- Desert Death Adder Acanthophis pyrrhus
- Diana's Coral Snake Micrurus diana
- Dinagat Island Banded Coralsnake Calliophis salitan
- Dubois' Sea Snake Aipysurus duboisii
- Dugite Pseudonaja affinis
- Dunmall's Snake Furina dunmalli
- Dwarf Crowned Snake Cacophis krefftii
- Dwarf Seasnake Hydrophis caerulescens
- Dwarf Water Cobra Naja nana
- Eastern Brown Snake Pseudonaja textilis
- Eastern Coral Snake Micrurus fulvius
- Ecuador Coral Snake Micrurus bocourti
- Egg-eating Sea Snake Emydocephalus annulatus
- Egyptian Cobra Naja haje
- Einasleigh Shovel-nosed Snake Brachyurophis campbelli
- Elegant Coral Snake Micrurus elegans
- Elegant Seasnake Hydrophis elegans
- Emydocephalus szczerbaki
- Ephalophis greyi
- Equatorial Spitting Cobra Naja sumatrana
- Estuarine Sea Snake Hydrophis obscurus
- Estuarine seasnake Hydrophis vorisi
- Fiji Cobra Ogmodon vitianus
- Fine-spined Seasnake Hydrophis czeblukovi
- Flat-tail Sea Snake (schistorhyncha) Laticauda schistorhyncha
- Forest Cobra Naja melanoleuca
- Golden Crowned Snake Cacophis squamulosus
- Goodenough Island Forest Snake Toxicocalamus goodenoughensis
- Gould's Black-headed Snake Suta gouldii
- Greater Black Krait Bungarus niger
- Greater Seasnake Hydrophis major
- Green Mamba Dendroaspis angusticeps
- Grey Snake Hemiaspis damelii
- Grey Whipsnake Demansia simplex
- Grey-naped Snake Furina tristis
- Guangxi Coral Snake Sinomicrurus peinani
- Guinea's Flat-tail Sea Snake Laticauda guineai
- Guyana Blackback Coral Snake Micrurus collaris
- Gwardar (nuchalis) Pseudonaja nuchalis
- Günther's sea snake Microcephalophis cantoris
- Günther’s Garter Snake Elapsoidea guentherii
- Half-girdled Snake Brachyurophis semifasciatus
- Hardwicke's Spine-bellied Seasnake Hydrophis hardwickii
- Hatori's Coral Snake Sinomicrurus hatori
- Hemprich's Coral Snake Micrurus hemprichii
- Highlands Copperhead Austrelaps ramsayi
- Hoodless Cobra Pseudohaje nigra
- Hydrophis mcdowelli
- Hydrophis neglectus
- Hydrophis pachycercos
- Hydrophis pelamys
- Ijima's sea snake Emydocephalus ijimae
- Ikaheka Snake Micropechis ikaheka
- Incongruelaps iteratus
- Indian Cobra Naja naja
- Indian Coral Snake Calliophis melanurus
- Indo-chinese Spitting Cobra Naja siamensis
- Indonesian Cobra Naja sputatrix
- Ingram's Brown Snake Pseudonaja ingrami
- Inland Taipan Oxyuranus microlepidotus
- Intermediate Bandy Bandy Vermicella intermedia
- Jameson's Mamba Dendroaspis jamesoni
- Japanese Coral Snake Sinomicrurus japonicus
- Jerdon's Sea Snake Hydrophis jerdonii
- Kalimantan Sea Snake Hydrophis sibauensis
- Kellog's Coral Snake Sinomicrurus kelloggi
- Kimberley Death Adder Acanthophis cryptamydros
- King Cobra Ophiophagus hannah
- King's Seasnake Hydrophis kingii
- Kloss' Sea Snake Hydrophis klossi
- Laboute's Sea Snake Hydrophis laboutei
- Lake Cronin Snake Paroplocephalus atriceps
- Lake Taal Snake Hydrophis semperi
- Lambert's Sea Snake Hydrophis lamberti
- Langsdorff's Coral Snake Micrurus langsdorffi
- Leaf-scaled Seasnake Aipysurus foliosquama
- Lesser Black Krait Bungarus lividus
- Long-tailed Whipsnake Demansia flagellatio
- Loria Forest Snake Toxicocalamus loriae
- Loveridge's Garter Snake Elapsoidea loveridgei
- MacLelland's Coral Snake Sinomicrurus macclellandi
- Mainland Tiger Snake Notechis scutatus
- Mali Cobra Naja katiensis
- Mallee Black-backed Snake Suta nigriceps
- Managalas Plateau Snake Toxicocalamus pumehanae
- Mandalay Cobra Naja mandalayensis
- Many-banded Coral Snake Micrurus multifasciatus
- Many-banded Krait Bungarus multicinctus
- Many-banded Snake Naja multifasciata
- Marbled Sea Snake Aipysurus eydouxii
- Marsh Snake (signata) Hemiaspis signata
- Masters' Snake Drysdalia mastersii
- Mayan Coral Snake Micrurus hippocrepis
- McClung's Philippine Coral Snake Hemibungarus mcclungi
- McDowell's Seasnake Hydrophis macdowelli
- Medem's Coralsnake Micrurus medemi
- Mengden's Gwardar Pseudonaja mengdeni
- Merida Coral Snake Micrurus meridensis
- Mertens' Coral Snake Micrurus mertensi
- Mesopotamian coral snake Micrurus baliocoryphus
- Micrurus gallicus
- Micrurus pachecogili
- Misima Island Forest Snake Toxicocalamus misimae
- Monk Snake Suta monachus
- Monocled Cobra Naja kaouthia
- Mosiac Sea Snake Aipysurus mosaicus
- Mount Lamington forest snake Toxicocalamus lamingtoni
- Mozambique Spitting Cobra Naja mossambica
- Mt Rossel Forest Snake Toxicocalamus holopelturus
- Mt Simpson Forest Snake Toxicocalamus mattisoni
- Mulga Snake Pseudechis australis
- Muller's Snake (bicolor) Rhinoplocephalus bicolor
- Mustard-bellied Snake Drysdalia rhodogaster
- Myal Snake Suta suta
- Müller's Crown Snake Aspidomorphus muelleri
- Naja antiqua
- Naja austriaca
- Naja iberica
- Naja romani
- Narrow-banded Burrowing Snake Brachyurophis fasciolatus
- Narrow-headed Whipsnake Demansia angusticeps
- Natterer's Coral Snake Micrurus nattereri
- Nayarit Coral Snake Micrurus proximans
- Neblina coralsnake Micrurus remotus
- Neelaps bimaculatus
- North-western Mangrove Seasnake Ephalophis greyae
- North-western Shovel-nosed Snake Brachyurophis approximans
- Northeastern Hill Krait Bungarus bungaroides
- Northern Bandy Bandy Vermicella multifasciata
- Northern Death Adder Acanthophis praelongus
- Northern Desert Banded Snake Simoselaps anomalus
- Northern Dward-crowned Snake Cacophis churchilli
- Northern Shovel-nosed Snake Brachyurophis roperi
- Nubian Spitting Cobra Naja nubiae
- Oaxacan Coral Snake Micrurus ephippifer
- Olive Sea Snake Aipysurus laevis
- Olive Whipsnake Demansia olivacea
- Orange-naped Snake Furina ornata
- Ord Curl Snake Suta ordensis
- Oriental Coral Snake Sinomicrurus sauteri
- Ornamental Snake Denisonia maculata
- Ornate Coralsnake Micrurus ornatissimus
- Ornate Sea Snake Hydrophis ornatus
- Owen Stanley Range Forest Snake Toxicocalamus stanleyanus
- Pacaraima coral snake Micrurus pacaraimae
- Pacific seasnake Hydrophis pacificus
- Painted Coral Snake Micrurus corallinus
- Pale-headed Snake Hoplocephalus bitorquatus
- Panamenian Coral Snake Micrurus stewarti
- Pantanal Coral Snake Micrurus tricolor
- Papuan Blacksnake Pseudechis papuanus
- Papuan Death Adder Acanthophis rugosus
- Papuan Whip Snake Demansia papuensis
- Pará Coral Snake Micrurus paraensis
- Peninsula Brown Snake Pseudonaja inframacula
- Persian Krait Bungarus persicus
- Peru Coral Snake Micrurus peruvianus
- Peters' Coral Snake Micrurus petersi
- Peters' Sea Snake Hydrophis bituberculatus
- Philippine Cobra Naja philippinensis
- Philippine Coral Snake Calliophis philippinus
- Pigmy Black-backed Coralsnake Micrurus scutiventris
- Pilbara Bandy Bandy Vermicella snelli
- Pilbara Hooded Snake Suta gaikhorstorum
- Pink Snake Cryptophis incredibilis
- Plain Seasnake Hydrophis inornatus
- Port Darwin seasnake Hydrelaps darwiniensis
- Potyguara Coral Snake Micrurus potyguara
- Preuss's Forest Snake Toxicocalamus preussi
- Putumayo Coral Snake Micrurus putumayensis
- Pygmy Copperhead Austrelaps labialis
- Pygmy Coral Snake Micrurus dissoleucus
- Pygmy Mulga Snake Pseudechis weigeli
- Rangoon Sea Snake Hydrophis hendersoni
- Red River Krait Bungarus slowinskii
- Red-headed Krait Bungarus flaviceps
- Red-naped Snake Furina diadema
- Redtail Coral Snake Micrurus mipartitus
- Regal Coral Snake Micrurus ancoralis
- Ringed Brown Snake Pseudonaja modesta
- Ringed Slender Coralsnake Micrurus renjifoi
- Ringed Water Cobra Naja annulata
- Ringhals Hemachatus haemachatus
- Roatan Coral Snake Micrurus ruatanus
- Robust Burrowing Snake Antaioserpens albiceps
- Robust Seasnake Hydrophis melanosoma
- Rosen's Snake Suta fasciata
- Rough Scaled Sea Snake Hydrophis donaldi
- Rough-scaled Snake Tropidechis carinatus
- Rufous Whipsnake Demansia rufescens
- Saddled Coral Snake Micrurus bernadi
- Sahul Reef Snake Aipysurus apraefrontalis
- Samar Cobra Naja samarensis
- Santander Coral Snake Micrurus sangilensis
- Schlegel's Crown Snake Aspidomorphus schlegelii
- Senegalese Cobra Naja senegalensis
- Sepik Beaked Seasnake Hydrophis zweifeli
- Setekwa River Forest Snake Toxicocalamus grandis
- Shark Bay Seasnake Aipysurus pooleorum
- Shine's Whipsnake Demansia shinei
- Short Sea Snake Hydrophis curtus
- Short-nosed Snake Elapognathus minor
- Silvia coralsnake Micrurus silviae
- Sind Krait Bungarus sindanus
- Sinomicrurus houi
- Sinomicrurus nigriventer
- Slender Coral Snake Micrurus filiformis
- Slender Seasnake Hydrophis gracilis
- Slender-necked Seasnake Hydrophis melanocephalus
- Small-eyed Snake Cryptophis nigrescens
- Smith's Small-headed Sea Snake Hydrophis parviceps
- Smooth-scaled Death Adder Acanthophis laevis
- Snouted Cobra Naja annulifera
- Soil-crack Whipsnake Demansia rimicola
- Solomon's Small-eyed Snake Loveridgelaps elapoides
- Solomons Coral Snake Salomonelaps par
- Somali Garter Snake Elapsoidea chelazziorum
- Sombre Whipsnake Demansia quaesitor
- Sonoran Coralsnake Micruroides euryxanthus
- South American Coral Snake Micrurus lemniscatus
- South Andaman Krait Bungarus andamanensis
- Southern Coral Snake Micrurus frontalis
- Speckled Coral Snake (maculiceps) Calliophis maculiceps
- Speckled Coral Snake (margaritiferus) Micrurus margaritiferus
- Speckled Shield Cobra Aspidelaps scutatus
- Spiny-headed Seasnake Hydrophis peronii
- Spotted Black Snake Pseudechis guttatus
- Spotted Brown Snake Pseudonaja guttata
- Spotted Coral Snake Calliophis gracilis
- Spotted Forest Snake Toxicocalamus spilolepidotus
- Spotted Sea Snake Hydrophis ocellatus
- Spotted Snake Suta punctata
- Star Mountains Worm-Eating Snake Toxicocalamus ernstmayri
- Steindachner's Coral Snake Micrurus steindachneri
- Stephen's Banded Snake Hoplocephalus stephensii
- Stoke's Seasnake Hydrophis stokesii
- Strap-snouted Brown Snake Pseudonaja aspidorhyncha
- Striped Coral Snake (intestinalis) Calliophis intestinalis
- Striped Coral Snake (nigrotaeniatus) Calliophis nigrotaeniatus
- Striped Crown Snake Aspidomorphus lineaticollis
- Striped forest snake Toxicocalamus vertebralis
- Striped Sea Snake Hydrophis fasciatus
- Stuart's Coral Snake Micrurus stuarti
- Sudest Island Forest Snake Toxicocalamus mintoni
- Sulu Islands Banded Coral Snake Calliophis suluensis
- Suzhen’s krait Bungarus suzhenae
- Swinhoe's temperate Asian coralsnake Sinomicrurus swinhoei
- São Tomé Cobra Naja peroescobari
- Tambito's Coral Snake Micrurus oligoanellatus
- Texas Coral Snake Micrurus tener
- Tikuna coralsnake Micrurus tikuna
- Timor Reef Snake Aipysurus fuscus
- Toxicocalamus buegersi
- Toxicocalamus cratermontanus
- Toxicocalamus longhagen
- Toxicocalamus nigrescens
- Toxicocalamus spilorhynchus
- Trape's Garter Snake Elapsoidea trapei
- Trinidad coralsnake Micrurus diutius
- Trinidad Northern Coral Snake Micrurus circinalis
- Tuxtlan Coral Snake Micrurus limbatus
- Two-stripped Coral Snake Calliophis bilineatus
- Unbanded Shovel-nosed Snake Brachyurophis incinctus
- Uruguayan coralsnake Micrurus altirostris
- Variable Black-naped Snake Suta dwyeri
- Variable Coral Snake Micrurus diastema
- Venezuela Coral Snake Micrurus isozonus
- Viperine Sea Snake Hydrophis viperinus
- Wall's Sind Krait Bungarus walli
- Walterinnesia morgani
- Warrego Burrowing Snake Antaioserpens warro
- Weipa Bandy Bandy Vermicella parscauda
- Werner's Garter Snake Elapsoidea laticincta
- West African Banded Cobra Naja savannula
- West Coast Black-headed Sea Snake Hydrophis torquatus
- West Mexican Coral Snake Micrurus distans
- Western Barred Spitting Cobra Naja nigricincta
- Western Black-striped Snake Neelaps calonotus
- Western Carpentaria Snake Cryptophis pallidiceps
- Western Desert Taipan Oxyuranus temporalis
- Western Green Mamba Dendroaspis viridis
- Western Turtle-headed Sea Snake Emydocephalus orarius
- Whip Hooded Snake Suta flagellum
- White-banded Coral Snake Micrurus albicinctus
- White-lipped Snake Drysdalia coronoides
- White-naped Snake Cacophis harriettae
- Woodlark Island Forest Snake Toxicocalamus longissimus
- Yellow Sea Snake Hydrophis spiralis
- Yellow-bellied Sea Snake Hydrophis platurus
- Yellow-faced Whipsnake (psammophis) Demansia psammophis
- Yellow-faced Whipsnake (reticulata) Demansia reticulata
- Yellow-Lipped Sea Krait Laticauda saintgironsi
- Yellow-lipped Sea Krait Laticauda colubrina
- Yellow-lipped Sea Snake Laticauda frontalis
- Yellow-naped Snake Furina barnardi
Gerrhopilidae 29
- Andaman Worm Snake Gerrhopilus andamanensis
- Beddome's Worm Snake Gerrhopilus beddomii
- Black blindsnake Gerrhopilus ater
- Cathetorhinus melanocephalus
- Few-scaled Worm Snake Gerrhopilus oligolepis
- Flower's Worm Snake Gerrhopilus floweri
- Fred Parkers Blindsnake Gerrhopilus fredparkeri
- Gerrhopilus eurydice
- Gerrhopilus flavinotatus
- Gerrhopilus hades
- Gerrhopilus lestes
- Gerrhopilus lorealis
- Gerrhopilus papuanorum
- Gerrhopilus persephone
- Gerrhopilus polyadenus
- Gerrhopilus slapcinskyi
- Gerrhopilus sumatranus
- Gerrhopilus suturalis
- Gerrhopilus wallachi
- Jan's Worm Snake Gerrhopilus mirus
- Lowland Beaked blindsnake Gerrhopilus depressiceps
- McDowell’s Blindsnake Gerrhopilus mcdowelli
- Montane Blindsnake Gerrhopilus inornatus
- Negros Island Worm Snake Gerrhopilus hedraeus
- Nilgiri Hills Worm Snake Gerrhopilus tindalli
- Panaeate Island Blindsnake Gerrhopilus addisoni
- Sri Lanka Worm Snake (ceylonicus) Gerrhopilus ceylonicus
- Thurston's Worm Snake Gerrhopilus thurstoni
- Western Java Worm Snake Gerrhopilus bisubocularis
Homalopsidae 56
- Andian Stout-tailed Snake Calamophis katesandersae
- Arfak Stout-tailed Snake Calamophis sharonbrooksae
- Aru Mangrove Snake Myron karnsi
- Australian Bokadam Cerberus australis
- Banded Watersnake Djokoiskandarus annulata
- Bangkok Mud Snake Enhydris jagorii
- Bennett's Mud Snake Myrrophis bennettii
- Blackwater Mud Snake Phytolopsis punctata
- Blanford's Mud Snake Gyiophis maculosus
- Bocourt's Mud Snake Subsessor bocourti
- Boie's Mud Snake Hypsiscopus plumbea
- Brachyorrhos kuhli
- Brachyorrhos pygmaeus
- Broome Mangrove Snake Myron resetari
- Buru Short-tailed Snake Brachyorrhos gastrotaenius
- Cantor's water snake Cantoria violacea
- Chanard's Mud Snake Enhydris chanardi
- Chinese Mud Snake Myrrophis chinensis
- Crab-eating Snake Fordonia leucobalia
- Deuve's Water Snake Homalopsis nigroventralis
- Dog-faced Water Snake Cerberus rynchops
- Gerard's water snake Gerarda prevostiana
- Halmahera Short-tailed Snake Brachyorrhos wallacei
- Hardwick's Water Snake Homalopsis hardwickii
- Jack's Water Snake Homalopsis mereljcoxi
- Kapuas Mud Snake Homalophis gyii
- Kebar Stout-tailed Snake Calamophis ruuddelangi
- Keel-bellied Water Snake Bitia hydroides
- Kerala Mud Snake Dieurostus dussumieri
- Lake Buhi Bockadam Cerberus microlepis
- Linne's Water Snake Homalopsis buccata
- Longtailed Mud Snake Enhydris longicauda
- Macleay's Mud Snake Pseudoferania polylepis
- Mamberano Mud Snake Heurnia ventromaculata
- Martaban Water Snake Homalopsis semizonata
- Matana Mud Snake Hypsiscopus matannensis
- Mekong Mud Snake Enhydris subtaeniata
- Myanophis thanlyinensis
- Pahang Mud Snake Kualatahan pahangensis
- Palau Bockadam Cerberus dunsoni
- Rainbow Mud Snake Enhydris enhydris
- Reuss' Mud Snake Miralia alternans
- Richardson's mangrove snake Myron richardsonii
- Salween River Basin Mud Snake Gyiophis salweenensis
- Sarawak Mud Snake Homalophis doriae
- Selangor Mud Snake Raclitia indica
- Siebold's Mud Snake Ferania sieboldii
- Sind River Mud Snake Mintonophis pakistanicus
- Southeast Asian Bockadam Cerberus schneiderii
- Sumatran Mud Snake Sumatranus albomaculata
- Sumatran Short-tailed Snake Karnsophis siantaris
- Tay Ninh Mud Snake Enhydris innominata
- Tentacled Snake Erpeton tentaculatum
- Ternate Short-tailed Snake Brachyorrhos raffrayi
- Voris' Mud Snake Gyiophis vorisi
- Yapen Island Stout-tailed Snake Calamophis jobiensis
Lamprophiidae 89
- African Banded Snake Chamaelycus fasciatus
- African File Snake Limaformosa crossi
- Angola File Snake Limaformosa vernayi
- Angolan House Snake Boaedon angolensis
- Aurora House Snake Lamprophis aurora
- Banded Snake Pseudoboodon lemniscatus
- Black File Snake Gracililima nyassae
- Blotched Wolf Snake Lycophidion nigromaculatum
- Boaedon bedriagae
- Boaedon mendesi
- Bocage’s Brown House Snake Boaedon bocagei
- Branch’s Brown House Snake Boaedon branchi
- Brown House Snake (capensis) Boaedon capensis
- Brown House Snake (fuliginosus) Boaedon fuliginosus
- Brown Water Snake (rufulus) Lycodonomorphus rufulus
- Bug-eyed House Snake Boaedon mentalis
- Böhme's Ethiopian Snake Pseudoboodon boehmei
- Cameroon Rainforest Snake Dendrolycus elapoides
- Cape Wolf Snake (capense) Lycophidion capense
- Cape Wolf Snake (multimaculatum) Lycophidion multimaculatum
- Central-African Lined House Snake Boaedon paralineatus
- Chad Wolf Snake Lycophidion tchadensis
- Chirio’s Wolf Snake Lycophidion chirioi
- Christy's Banded Snake Chamaelycus christyi
- Coastal House Snake (littoralis) Boaedon littoralis
- Common File Snake Limaformosa capensis
- Congo File Snake Limaformosa savorgnani
- Cream-spotted Mountain Snake Montaspis gilvomaculata
- Dark-bellied Housesnake Boaedon variegatus
- Dotted House Snake Boaedon maculatus
- Dusky-bellied Water Snake Lycodonomorphus laevissimus
- Dwarf Wolf Snake Lycophidion nanum
- Eastern Congo White-bellied Water-Snake Boaedon upembae
- Eastern Wolf Snake Lycophidion semiannule
- Egbe File Snake Mehelya egbensis
- Equatorial File Snake Mehelya poensis
- Ethiopian House Snake Lamprophis abyssinicus
- Fisk's House Snake Lamprophis fiskii
- Flat Wolf Snake Lycophidion laterale
- Flat-snouted Wolf Snake Lycophidion depressirostre
- Floodplain Water Snake Lycodonomorphus obscuriventris
- Frade’s Brown House Snake Boaedon fradei
- Gabou File Snake Mehelya gabouensis
- Gasca's Ethiopian Snake Pseudoboodon gascae
- Guiral's File Snake Limaformosa guirali
- Günther's Black Snake Bothrolycus ater
- Hallowell's House Snake Boaedon virgatus
- Hellmich's Wolf Snake Lycophidion hellmichi
- Lamprophis erlangeri
- Laurent's File Snake Mehelya laurenti
- Lined Water Snake Lycodonomorphus subtaeniatus
- Long-lined House Snake Boaedon longilineatus
- Lycophidion semicinctum
- Matschie's African Ground Snake Gonionotophis klingi
- Mlanje White-bellied Water-Snake Lycodonomorphus mlanjensis
- Mocquard's African Ground Snake Gonionotophis brussauxi
- Mozambique Wolf Snake Lycophidion acutirostre
- Mulanje Water Snake Lycodonomorphus leleupi
- Namibian Wolf Snake Lycophidion namibianum
- Olive House Snake (inornatus) Lycodonomorphus inornatus
- Olive House Snake (olivaceus) Boaedon olivaceus
- Ornate Wolf Snake Lycophidion ornatum
- Pale Wolf Snake Lycophidion irroratum
- Parker's Banded Snake Chamaelycus parkeri
- Pemba Wolf Snake Lycophidion pembanum
- Peri-Forest House Snake Boaedon perisilvestris
- Pygmy Wolf Snake Lycophidion pygmaeum
- Radford's House Snake Boaedon radfordi
- Red-Black Striped Snake Bothrophthalmus lineatus
- Red-blacked Striped Snake Bothrophthalmus brunneus
- Red-snouted Wolf Snake Lycophidion uzungwense
- Sandford's Ethiopian Snake Pseudoboodon sandfordorum
- Savanna Lesser File Snake Gonionotophis grantii
- Seychelles House Snake Lamprophis geometricus
- Small-eyed File Snake Mehelya stenophthalmus
- Speckled Wolf Snake Lycophidion meleagre
- Spotted House Snake Lamprophis guttatus
- Spotted Wolf Snake Lycophidion albomaculatum
- Striped House Snake Boaedon lineatus
- Swazi Rock Snake Inyoka swazicus
- Tanganyika Water Snake Lycodonomorphus bicolor
- Taylor's Wolf Snake Lycophidion taylori
- Uganda House Snake Hormonotus modestus
- Unicolor File Snake Limaformosa chanleri
- Variegated Wolf Snake Lycophidion variegatum
- Western Jackson’s Wolf Snake Lycophidion jacksoni
- Whyte's Water Snake Lycodonomorphus whytii
- Yellow House Snake Boaedon subflavus
- Yellow-bellied House Snake Lamprophis fuscus
Leptotyphlopidae 146
- Adler's Worm Snake Myriopholis adleri
- Amaral's Blind Snake Trilepida koppesi
- Bailey's Blind Snake Trilepida anthracina
- Bakewell's Blind Snake Epictia bakewelli
- Barbados Threadsnake Tetracheilostoma carlae
- Benguela Worm Snake Namibiana latifrons
- Big-scaled Blind Snake Trilepida macrolepis
- Black Blind Snake (ater) Epictia ater
- Black Blind Snake (fallax) Epictia fallax
- Black Blind Snake (magnamaculata) Epictia magnamaculata
- Black Thread Snake Leptotyphlops nigricans
- Black-tip Worm Snake Leptotyphlops nigroterminus
- Bocage's Blind Snake Namibiana rostrata
- Boettger's Cape Thread Snake Rena boettgeri
- Bouet's Worm Snake Myriopholis boueti
- Boulenger's Blind Snake Myriopholis macrura
- Brazilian Blind Snake Trilepida brasiliensis
- Broadley's Thread Snake Tricheilostoma broadleyi
- Bury's Worm Snake Myriopholis burii
- Cairo Blind Snake Myriopholis cairi
- Cameroon Thread Snake Myriopholis perreti
- Cape Thread Snake (conjunctus) Leptotyphlops conjunctus
- Caqueta Blind Snake Trilepida brevissima
- Collared Blind Snake Habrophallos collaris
- Common Peru Blind Snake Epictia diaplocia
- Dainty Blind Snake Trilepida dimidiata
- Damara Thread Snake Namibiana labialis
- Dark Blind Snake Epictia melanura
- Degerbol's Blind Snake Siagonodon borrichianus
- Distant's Thread Snake Leptotyphlops distanti
- Drewes' Worm Snake Epacrophis drewesi
- Dugand's Blind Snake Trilepida dugandi
- Duges' Threadsnake Rena dugesii
- Eleven-striped Blind Snake Epictia undecimstriata
- Emin Pasha's Worm Snake Leptotyphlops emini
- Epictia alfredschmidti
- Epictia borapeliotes
- Epictia clinorostris
- Epictia hobartsmithi
- Epictia martinezi
- Epictia pauldwyeri
- Epictia resetari
- Epictia rioignis
- Epictia schneideri
- Epictia septemlineata
- Epictia striatula
- Epictia vanwallachi
- Epictia venegasi
- Epictia vonmayi
- Epictia wynni
- Eritrean Worm Snake Myriopholis erythraeus
- Espiritú Santo Blind Snake Trilepida salgueiroi
- Ethiopian Worm Snake Leptotyphlops aethiopicus
- Forest Thread Snake Leptotyphlops sylvicolus
- Freiberg's Blind Snake Epictia australis
- Gambia Blind Snake Myriopholis algeriensis
- García's Blind Snake Epictia antoniogarciai
- Giant Blind Snake Rena maxima
- Goggle-eyed Worm Snake Leptotyphlops macrops
- Goudot's Black Blind Snake Epictia goudotii
- Guayaquila Blind Snake Epictia guayaquilensis
- Guyana Blind Snake Epictia tenella
- Haitian Border Threadsnake Mitophis leptepileptus
- Hook-snouted Worm Snake Myriopholis macrorhyncha
- Howell's Worm Snake Leptotyphlops howelli
- Incognito Thread Snake Leptotyphlops incognitus
- Ionides' Worm Snake Myriopholis ionidesi
- Iverson's Blindsnake Rena iversoni
- Jacobsen's Thread Snake Leptotyphlops jacobseni
- Joshua's Blind Snake Trilepida joshuai
- Klauber's Blind Snake Epictia subcrotilla
- Lamu Worm Snake Epacrophis boulengeri
- Lanza's Worm Snake Myriopholis lanzai
- Leptotyphlops ionidesi
- Leptotyphlops tanae
- Long-tailed Thread Snake Myriopholis longicauda
- Martin Garcia Threadsnake Mitophis asbolepis
- Mato Grosso Blind Snake (cupinensis) Siagonodon cupinensis
- Mbanja Worm Snake Leptotyphlops mbanjensis
- Merker's Thread Snake Leptotyphlops merkeri
- Michoacán Slender Blind Snake Rena bressoni
- Mount Kenya Worm Snake Leptotyphlops keniensis
- Myriopholis occipitalis
- New Mexico Threadsnake Rena dissecta
- Nurse's Blind Snake Myriopholis nursii
- Pantanal Threadsnake Epictia vellardi
- Parker's Worm Snake Myriopholis parkeri
- Pastuso Threadsnake Trilepida pastusa
- Pemba Worm Snake Leptotyphlops pembae
- Peru Blind Snake Epictia peruviana
- Peter's Thread Snake Leptotyphlops scutifrons
- Pitman's Thread Snake Leptotyphlops pitmani
- Pungwe worm snake Leptotyphlops pungwensis
- Red-lined Blind Snake Epictia rubrolineata
- Rena affinis
- Rena myopica
- Reticulate Blind Snake Epacrophis reticulatus
- Rhinoguinea magna
- Rio Grande do Sul Blind Snake Epictia munoai
- Rose Blind Snake Epictia rufidorsa
- Roux-Estève's Worm Snake Myriopholis rouxestevae
- Sahel Thread Snake Myriopholis narirostris
- Samana Threadsnake Mitophis calypso
- San Salvador Blind Snake Epictia columbi
- Santander Blind Snake Trilepida nicefori
- Scortecci's Blind Snake Myriopholis braccianii
- Seven-striped Blind Snake Siagonodon septemstriatus
- Shaba Thread Snake Leptotyphlops kafubi
- Siagonodon acutirostris
- Siagonodon exiguum
- Sindh Thread Snake Myriopholis blanfordi
- Slender Thread Snake Namibiana gracilior
- Slinder Threadsnake Epictia phenops
- Socotra Island Blind Snake Myriopholis filiformis
- South American Blind Snake (amazonica) Epictia amazonica
- South American Blind Snake (signata) Epictia signata
- Southern Blind Snake (unguirostris) Rena unguirostris
- St. Lucia Threadsnake Tetracheilostoma breuili
- Sudan Blind Snake Tricheilostoma dissimilis
- Sundevalls Worm Snake Tricheilostoma sundewalli
- Tana worm snake Myriopholis tanae
- Teague's Northern Blind Snake Epictia teaguei
- Tello's Thread Snake Leptotyphlops telloi
- Texas Blind Snake Rena dulcis
- Thomas' Blind Snake Mitophis pyrites
- Three-colored Blind Snake Epictia tricolor
- Trans-Pecos Threadsnake Rena segrega
- Tricheilostoma greenwelli
- Tricheilostoma kongoensis
- Trilepida fuliginosa
- Trilepida jani
- Tschudi's Blind Snake Epictia tesselata
- Tucuman Threadsnake Epictia albipuncta
- Two-colored Blind Snake Tricheilostoma bicolor
- Two-lined Blind Snake Tetracheilostoma bilineatum
- Unicolored Thread Snake Epictia unicolor
- Uvira Worm Snake Leptotyphlops latirostris
- Venezuela Blind Snake Trilepida affinis
- Villiers' Blind Snake Rhinoleptus koniagui
- Vindum's Worm Snake Epictia vindumi
- Wagler's Blind Snake Epictia albifrons
- Western Thread Snake Namibiana occidentalis
- Western Threadsnake Rena humilis
- White-bellied Worm Snake Myriopholis albiventer
- Wilson's Blind Snake Myriopholis wilsoni
- Yemen Blind Snake Myriopholis yemenica
Loxocemidae 1
- Mexican burrowing python Loxocemus bicolor
Pareidae 42
- Anamalai wood snake Xylophis mosaicus
- Anderson’s Slug Snake Pareas andersonii
- Asian Slug Snake Asthenodipsas vertebralis
- Atayal Slug-eating Snake Pareas atayal
- Barred Slug-eating Snake Pareas nuchalis
- Black Slug Snake Pareas modestus
- Black Snail-eating Snake Pareas niger
- Blunthead Slug Snake Aplopeltura boa
- Bornean Dark-necked Slug Snake Asthenodipsas borneensis
- Boulenger's Slug Snake Pareas boulengeri
- Captain's Wood Snake Xylophis captaini
- Chinese Slug Snake Pareas chinensis
- Common Slug Snake Pareas monticola
- Cute slug-eating snake Pareas abros
- Deepak's Wood Snake Xylophis deepaki
- Di Linh slug-eating snake Pareas temporalis
- Formosa Slug Snake Pareas formosensis
- Günther's Mountain Snake Xylophis stenorhynchus
- Hampton's Slug Snake Pareas hamptoni
- Inger’s Slug Snake Asthenodipsas ingeri
- Iwasaki's Snail-eater Pareas iwasakii
- Jamil Slug Snake Asthenodipsas jamilinaisi
- Keeled Slug Snake Pareas carinatus
- Koma's Formosa Slug Snake Pareas komaii
- Kuznetsovs’ Slug-eating Snake Pareas kuznetsovorum
- Malayan Slug Snake Asthenodipsas malaccanus
- Mirkwood Forest Slug Snake Asthenodipsas lasgalenensis
- Mountain Slug Snake Pareas margaritophorus
- Pareas geminatus
- Pareas kaduri
- Pareas menglaensis
- Pareas xuelinensis
- Perrotet's Mountain Snake Xylophis perroteti
- Sabah Mountain Smooth Slug Snake Asthenodipsas stuebingi
- Smooth Slug Snake Asthenodipsas laevis
- Spotted Slug Snake Pareas macularius
- Stanley's Slug Snake Pareas stanleyi
- Sumatra Slug Snake Asthenodipsas tropidonotus
- Tiger slug-eating snake Pareas tigerinus
- Victoria slug snake Pareas victorianus
- Vindum's Slug Eater Pareas vindumi
- Xiaoheishan Slug-eater Snake Pareas nigriceps
Prosymnidae 18
- Angola Shovel-snout Prosymna angolensis
- Angolan Shovel-snout Prosymna ambigua
- Banded Shovel-snout Prosymna semifasciata
- East African Shovel-snout Prosymna stuhlmanni
- Ghana Shovel-snout Prosymna meleagris
- Lined Shovel-snout Prosymna lineata
- Mozambique Shovel-snout Prosymna janii
- Multi-scaled Shovel-snout Prosymna pitmani
- Ogaden Racer (somalica) Prosymna somalica
- Ornate Shovel-snout Prosymna ornatissima
- Plain Shovel-snout Snake (confusa) Prosymna confusa
- Plain Shovel-snout Snake (lisima) Prosymna lisima
- Ruspoli's Shovelsnout Snake Prosymna ruspolii
- Southern Sahel Speckled Shovel-snout Prosymna greigerti
- Southern Shovel-snout Prosymna sundevalli
- Southwestern Shovel-snout Prosymna frontalis
- Two-striped Shovel-snout Prosymna bivittata
- Visser's Shovel-snout Prosymna visseri
Psammophiidae 58
- African Horn Sand Snake Psammophis cornusafricae
- Beaked Skaapsteker Kladirostratus acutus
- Beautiful Sand Snake Psammophis pulcher
- Cape Sand Snake Psammophis leightoni
- Dwarf Beaked Snake Dipsina multimaculata
- Dwarf Sand Snake Psammophis angolensis
- Eastern Montpellier Snake Malpolon insignitus
- Eastern Stripe-bellied Sand Snake Psammophis orientalis
- Elegant Sand Racer Psammophis elegans
- Fork-marked Sand Snake Psammophis trinasalis
- Forskal Sand Snake Psammophis schokari
- Grey-bellied Grass Snake Psammophylax variabilis
- Huíla Skaapsteker Psammophylax ocellatus
- Indo-Chinese Sand Snake Psammophis indochinensis
- Jalla's Sand Snake Psammophis jallae
- Kalahari Sand Snake Psammophis afroccidentalis
- Kenyan striped skaapsteker Psammophylax multisquamis
- Leith's Sand Snake Psammophis leithii
- Leopard Sand Snake Psammophis leopardinus
- Lined Olympic Snake Psammophis lineatus
- Link-marked Sand Racer Psammophis ansorgii
- Link-marked Sand Snake Psammophis biseriatus
- Long Sand Racer Psammophis longifrons
- Malpolon mlynarskii
- Moila Snake Malpolon moilensis
- Montane Grass Snake Psammophis crucifer
- Montpellier snake Malpolon monspessulanus
- Mopane Snake Hemirhagerrhis nototaenia
- Namib Sand Snake Psammophis namibensis
- Northern Bark Snake Hemirhagerrhis hildebrandtii
- Northern Pencil Snake Mimophis occultus
- Olive Grass Racer Psammophis phillipsii
- Olive Whip Snake Psammophis mossambicus
- Ornate Olympic Snake Psammophis praeornatus
- Pencil Snake Mimophis mahfalensis
- Red Beaked Snake Rhamphiophis rubropunctatus
- Rhombic Skaapsteker Psammophylax rhombeatus
- Rufous Beaked Snake Rhamphiophis rostratus
- Rukwa Sand Racer Psammophis rukwae
- Saharan Sand Snake Psammophis aegyptius
- Sand Snake (condanarus) Psammophis condanarus
- Short-snouted Grass Snake Psammophis brevirostris
- Speckled Sand Racer Psammophis punctulatus
- Steppe Ribbon Racer Psammophis lineolatus
- Stripe-bellied Sand Snake Psammophis subtaeniatus
- Striped Bark Snake Hemirhagerrhis kelleri
- Striped Sand Snake Psammophis sibilans
- Striped Skaapsteker Psammophylax tritaeniatus
- Sudanese Sand Snake Psammophis sudanensis
- Tanganyika Sand Snake Psammophis tanganicus
- Tanzanian Grass Snake Psammophylax kellyi
- Togo Skaapsteker Kladirostratus togoensis
- Turpan Sand Snake Psammophis turpanensis
- Western Bark Snake Hemirhagerrhis viperina
- Western Beaked Snake Rhamphiophis oxyrhynchus
- Western Sand Snake Psammophis trigrammus
- Whip Snake Psammophis notostictus
- Zambian Whip Snake Psammophis zambiensis
Pseudaspididae 4
- Common Mock Viper Psammodynastes pulverulentus
- Mole Snake Pseudaspis cana
- Painted Mock Viper Psammodynastes pictus
- Western Keeled Snake Pythonodipsas carinata
Pseudoxyrhophiidae 93
- Ambilobe Leaf-nosed Snake Langaha pseudoalluaudi
- Ambre Brook Snake Pseudoxyrhopus ambreensis
- Ampijoroa Tree Snake Lycodryas pseudogranuliceps
- Anatelo Forest Smooth Snake Liophidium therezieni
- Andasibe Big-headed Snake Compsophis vinckei
- Anjanaharibe Ground Snake Pseudoxyrhopus analabe
- Ankafina Ground Snake Pseudoxyrhopus ankafinaensis
- Ankarana Dwarf Snake Heteroliodon lava
- Antsihanaka Water Snake Liopholidophis varius
- Antsiranana Cat Snake Madagascarophis fuchsi
- Antsiranana Tree Snake Lycodryas inopinae
- Antsiranana Water Snake Thamnosophis martae
- Bader's Water Snake Liopholidophis baderi
- Befandriana Smooth Snake Liophidium apperti
- Bernier's Striped Snake Dromicodryas bernieri
- Betsileo White-banded Tree Snake Parastenophis betsileanus
- Blonde Hognose Snake Leioheterodon modestus
- Boulenger's Forest Snake Compsophis boulengeri
- Brown Brook Snake Pseudoxyrhopus microps
- Brygophis coulangesi
- Cat-eyed Snake (meridionalis) Madagascarophis meridionalis
- Chevron Necked Snake Micropisthodon ochraceus
- Collared Tree Snake Lycodryas guentheri
- Common Slug Eater Duberria lutrix
- Eastern Madagascar Water Snake Thamnosophis epistibes
- Eastern Rainforest Smooth Snake Liopholidophis dolicocercus
- Few Scaled Water Snake Liopholidophis oligolepis
- Fianarantsoa Big-headed Snake Compsophis zeny
- Forest Night Snake Ithycyphus goudoti
- Forest Water Snake Thamnosophis infrasignatus
- Four-striped Snake Dromicodryas quadrilineatus
- Ghost Snake Madagascarophis lolo
- Gold-collarcd Snake Liophidium rhodogaster
- Grandidier's Water Snake Liopholidophis grandidieri
- Günther's Racer Ditypophis vivax
- Jan's Snake Elapotinus picteti
- Lateral Water Snake Thamnosophis lateralis
- Light-banded Dwarf Snake Heteroliodon occipitalis
- Lined Forest Snake Compsophis infralineatus
- Lycodryas carleti
- Madagascar Bighead Snake Compsophis albiventris
- Madagascar Black-bellied Smooth Snake Liophidium maintikibo
- Madagascar Burrowing Snake Pararhadinaea melanogaster
- Madagascar Leaf-nosed Snake Langaha madagascariensis
- Madagascar Night Snake Madagascarophis colubrinus
- Madagascar Three-lined Snake Liophidium trilineatum
- Mahajanga Big-headed Snake Compsophis fatsibe
- Malagasy Giant Hognose Snake Leioheterodon madagascariensis
- Manakara Tree Snake Lycodryas gaimardi
- Mandena Ground Snake Pseudoxyrhopus kely
- Many-spotted Snake Amplorhinus multimaculatus
- Marojejy Night Snake Ithycyphus blanci
- Mocquard Snake Alluaudina mocquardi
- Mount Ambre Water Snake Liopholidophis dimorphus
- Night Brook Snake Pseudoxyrhopus heterurus
- Nosy Bé Tree Snake Lycodryas granuliceps
- Ocellated Cat Snake Madagascarophis ocellatus
- Orange Tree Snake Phisalixella variabilis
- Pale-headed Forest Snake Buhoma depressiceps
- Perinet Night Snake Ithycyphus perineti
- Peters' Bright Snake Liophidium mayottensis
- Phisalixella iarakaensis
- Plain Tree Snake Lycodryas inornatus
- Plateau Brook Snake Pseudoxyrhopus imerinae
- Ranomafana Big-headed Snake Compsophis laphystius
- Ranomafana Ground Snake Pseudoxyrhopus oblectator
- Red-striped Smooth Snake Liophidium pattoni
- Reticulated Hognose Snake Leioheterodon geayi
- Shire Slug Eater Duberria shirana
- Six-lined Water Snake Liopholidophis sexlineatus
- Slender Smooth Snake Liopholidophis rhadinaea
- Sokosoko Ground Snake Pseudoxyrhopus sokosoko
- Southern Leafnose Snake Langaha alluaudi
- Southwestern Night Snake Ithycyphus oursi
- Spotted Slug Eater Duberria variegata
- Spotted Tree Snake (cococola) Lycodryas cococola
- Spotted Tree Snake (maculatus) Lycodryas maculatus
- Stout Dwarf Snake Heteroliodon fohy
- Striped Brook Snake Pseudoxyrhopus quinquelineatus
- Three-striped Ground Snake Pseudoxyrhopus tritaeniatus
- Tiny Night Snake Ithycyphus miniatus
- Toliara Smooth Snake Liophidium chabaudi
- Uluguru Forest Snake Buhoma procterae
- Usambara Forest Snake Buhoma vauerocegae
- Vaillant's Madagascar Ground Snake Liophidium vaillanti
- Western Banded Tree Snake Phisalixella tulearensis
- White Banded Tree Snake Phisalixella arctifasciata
- White-lipped Smooth Snake Liophidium torquatum
- Yellow-and-black Tree Snake Lycodryas citrinus
- Yellow-flanked Keeled Snake Alluaudina bellyi
- Yellow-striped Water Snake Thamnosophis stumpffi
- Yellow-throated Water Snake Thamnosophis mavotenda
- Zimbabwean Slug Eater Duberria rhodesiana
Pythonidae 46
- African Rock Python Python sebae
- Angolan Python Python anchietae
- Ball Python Python regius
- Bismarck Ringed Python Bothrochilus boa
- Black Python Simalia boeleni
- Black-headed Python Aspidites melanocephalus
- Blood Python Python brongersmai
- Blood Python (curtus) Python curtus
- Borneo Python Python breitensteini
- Brown Water Python Liasis fuscus
- Burmese Python Python bivittatus
- Carpet Python Morelia spilota
- Centralian Carpet Python Morelia bredli
- Children's Python Antaresia childreni
- Freckled Python Liasis mackloti
- Green Python Morelia azurea
- Green Tree Python Morelia viridis
- Halmahera Python Simalia tracyae
- Indian Rock Python Python molurus
- Karimui Basin White-lipped Python Leiopython fredparkeri
- Kinghorn's Scrub Python Simalia kinghorni
- Lesser African Python Python natalensis
- Liasis dubudingala
- Liasis dunni
- Liasis timoriensis
- Mon python Python kyaiktiyo
- Morelia antiqua
- Morelia kinghorni
- Morelia riversleighensis
- Northern White-Lipped Python Leiopython albertisii
- Oenpelli Python Nyctophilopython oenpelliensis
- Olive Python Liasis olivaceus
- Papuan Olive Python Apodora papuana
- Papuan Spotted Python Antaresia papuensis
- Pygmy Python Antaresia perthensis
- Python maurus
- Reticulated Python Malayopython reticulatus
- Rough-scaled Python Morelia carinata
- Savu python Liasis savuensis
- Scrub Python (amethistina) Simalia amethistina
- Southern Moluccan python Simalia clastolepis
- Spotted Python Antaresia maculosa
- Tanimbar Python Simalia nauta
- Timor Python Malayopython timoriensis
- Western Carpet Python Morelia imbricata
- Woma Aspidites ramsayi
Tropidophiidae 41
- Bahama-Wood Snake (canus) Tropidophis canus
- Bahama-Wood Snake (curtus) Tropidophis curtus
- Banded Dwarf Boa Tropidophis semicinctus
- Battersby's Dwarf Boa Tropidophis battersbyi
- Blackbelly Dwarf Boa Tropidophis nigriventris
- Brazilian Dwarf Boa Tropidophis paucisquamis
- Caicos Trope Tropidophis greenwayi
- Canasi Trope Tropidophis celiae
- Cayman Brac Trope Tropidophis schwartzi
- Cayman Islands Dwarf Boa Tropidophis caymanensis
- Cuban Dusky Trope Tropidophis fuscus
- Cuban Khaki Trope Tropidophis hendersoni
- Escambray Small-headed Trope Tropidophis hardyi
- Feick's Dwarf Boa Tropidophis feicki
- Guanahacabibes Trope Tropidophis xanthogaster
- Hispaniolan Trope Tropidophis haetianus
- Jamaican Brown Trope Tropidophis jamaicensis
- Jamaican Eyespot Trope Tropidophis stejnegeri
- Lazy Snake Tropidophis parkeri
- Leopard Dwarf Boa Tropidophis pardalis
- Navassa Dwarf Boa Tropidophis bucculentus
- Northern Eyelash Boa Trachyboa boulengeri
- Pilsbry's Dwarf Boa Tropidophis pilsbryi
- Pilsbry's Dwarf Boa (galacelidus) Tropidophis galacelidus
- Platyspondylia germanica
- Platyspondylia lepta
- Platyspondylia sudrei
- Portland Ridge Trope Tropidophis stullae
- Sancti Spiritus Trope Tropidophis spiritus
- Southern Eyelash Boa Trachyboa gularis
- Spotted Dwarf Boa Tropidophis maculatus
- Szyndlaria aureomontensis
- Taczanowsky's Dwarf Boa Tropidophis taczanowskyi
- Tropidonotus atavus
- Tropidophis cacuangoae
- Tropidophis grapiuna
- Tropidophis preciosus
- Tropidophis steinleini
- Wood Snake Tropidophis melanurus
- Wright's Dwarf Boa Tropidophis wrighti
- Zebra Trope Tropidophis morenoi
Typhlopidae 281
- Afrotyphlops chirioi
- Afrotyphlops rouxestevae
- Akagera Gracile Blind Snake Letheobia akagerae
- Amerotyphlops amoipira
- Amerotyphlops arenensis
- Amerotyphlops caetanoi
- Amerotyphlops illusorium
- Amerotyphlops martis
- Amerotyphlops montanum
- Amsâga Worm Snake Xerotyphlops etheridgei
- Andaman Island Worm Snake Argyrophis oatesii
- Andasibe Blind Snake Madatyphlops andasibensis
- Andy’s Blind Snake Malayotyphlops andyi
- Angola blind snake Afrotyphlops angolensis
- Anomalous Beaked Snake Afrotyphlops anomalus
- Arboreal Blind Snake Ramphotyphlops angusticeps
- Argyrophis giandinhensis
- Bahaman Slender Blindsnake Cubatyphlops biminiensis
- Bahoruco Blindsnake Typhlops eperopeus
- Balbalan Blind Snake Acutotyphlops banaorum
- Barahona Worm Snake Typhlops syntherus
- Barrow Island Blind Snake Anilios longissimus
- Basin Worm Snake Amerotyphlops minuisquamus
- Batillus Blind Snake Anilios batillus
- Beaked Blind Snake Anilios waitii
- Beaked Worm Snake Grypotyphlops acutus
- Beck's Blind Snake Ramphotyphlops becki
- Belgaum Worm Snake Indotyphlops exiguus
- Bibron's Blind Snake Afrotyphlops bibronii
- Bicoloured blind skink Afrotyphlops nigrocandidus
- Bismarck sharp-nosed blindsnake Acutotyphlops subocularis
- Blackish Blind Snake Anilios nigrescens
- Blanford's Blind-snake Afrotyphlops blanfordii
- Blotched Blind Snake Afrotyphlops congestus
- Blunt-snouted Blindsnake Anilios obtusifrons
- Boenjoe Island Worm Snake Malayotyphlops koekkoeki
- Boettger's Sand Worm Snake Madatyphlops boettgeri
- Boettger's Worm Snake Madatyphlops mucronatus
- Bougainville Blind Snake Acutotyphlops solomonis
- Boyle's Beaked Blind Snake Rhinotyphlops boylei
- Brahminy Blindsnake Indotyphlops braminus
- Brongersma's Worm Snake Amerotyphlops brongersmianus
- Brown Worm Snake Argyrophis fuscus
- Brown-snouted Blind Snake Anilios wiedii
- Buff-snouted Blind Snake Anilios margaretae
- Calabresi's Blind-snake Afrotyphlops calabresii
- Cameroon Worm Snake Letheobia decorosus
- Cape York Striped Blind Snake Anilios chamodracaena
- Cayman Brac Blindsnake Cubatyphlops epactius
- Cayman Worm Snake Cubatyphlops caymanensis
- Cebu Island Worm Snake Malayotyphlops hypogius
- Centralian Blind Snake Anilios centralis
- Chestnut Worm Snake Indotyphlops tenebrarum
- Christmas Island Blind Snake Ramphotyphlops exocoeti
- Cienfuegos Blindsnake Cubatyphlops satelles
- Claw-snouted Blind Snake Anilios unguirostris
- Coffee Worm Snake Amerotyphlops tenuis
- Collared Worm Snake Malayotyphlops collaris
- Comoro Worm Snake Madatyphlops comorensis
- Conrad's Worm Snake Ramphotyphlops conradi
- Costa Rica Worm Snake Amerotyphlops costaricensis
- Cross' Beaked Snake Letheobia crossii
- Cuban Giant Blindsnake Cubatyphlops arator
- Cuban Pallid Blindsnake Cubatyphlops anousius
- Cuban Short-nosed Blindsnake Cubatyphlops contorhinus
- Cuming's Blind Snake Ramphotyphlops cumingii
- Darjeeling Worm Snake Indotyphlops meszoelyi
- Dark-spined Blind Snake Anilios bicolor
- Darwin Blind Snake Anilios tovelli
- Deharveng's Blind Snake Cyclotyphlops deharvengi
- Delalande's Beaked Blind Snake Rhinotyphlops lalandei
- Diard's Blindsnake Argyrophis diardii
- Domergue's Sand Worm Snake Madatyphlops domerguei
- Dominican Worm Snake Antillotyphlops dominicanus
- Earthworm Blind Snake Typhlops lumbricalis
- Elegant Worm Snake Afrotyphlops elegans
- Erica's Worm Snake (catapontus) Antillotyphlops catapontus
- Erica's Worm Snake (naugus) Antillotyphlops naugus
- Eritrean Blind Snake Letheobia erythraea
- Estado Falcón Worm Snake Amerotyphlops lehneri
- Ethiopian Blind Snake Letheobia somalica
- Eudeline's Worm Snake Madatyphlops eudelini
- Eurasian Blind Snake Xerotyphlops vermicularis
- Fannie Bay Blind Snake Anilios nema
- Fassifern Blind Snake Anilios insperatus
- Feeble Gracile Blind-snake Letheobia debilis
- File Worm Snake Indotyphlops filiformis
- Flathead Worm Snake Antillotyphlops platycephalus
- Fletcher's Worm Snake Indotyphlops fletcheri
- Fornasini's Blind Snake Afrotyphlops fornasinii
- Gabon Beaked Snake Letheobia caeca
- Gane's Blind Snake Anilios ganei
- Goliath Blindsnake Cubatyphlops golyathi
- Gonave Island Worm Snake Typhlops gonavensis
- Gracile Blind-snake Letheobia largeni
- Grant's Worm Snake Antillotyphlops granti
- Great Inagua Slender Blindsnake Cubatyphlops paradoxus
- Grenada Worm Snake Amerotyphlops tasymicris
- Groote Dwarf Blind Snake Anilios minimus
- Guadeloupe Worm Snake Antillotyphlops guadeloupensis
- Guantanamo Bay Blindsnake Cubatyphlops perimychus
- Guinea Blind Snake Afrotyphlops liberiensis
- Gunther's Blind Snake Argyrophis bothriorhynchus
- Haitian Worm Snake Typhlops tetrathyreus
- Hale River Blind Snake Anilios fossor
- Haut-Oubangui Beaked Snake Letheobia rufescens
- Hispaniola Worm Snake Typhlops pusillus
- Hoffstetter's Worm Snake Madatyphlops cariei
- Honduras Worm Snake Amerotyphlops tycherus
- Hong Kong Blind Snake Indotyphlops lazelli
- Hook-nosed Blindsnake Ramphotyphlops multilineatus
- Imias Blindsnake Cubatyphlops notorachius
- Indotyphlops ahsanai
- Indotyphlops madgemintonae
- Interior Blind Snake Anilios endoterus
- Iranian Worm Snake Xerotyphlops wilsoni
- Island Worm Snake Typhlops sulcatus
- Israeli Worm Snake Letheobia simoni
- Jamaica Worm Snake Typhlops jamaicensis
- Jerdon's Worm Snake Indotyphlops jerdoni
- Juba Gracile Blind-snake Letheobia jubana
- Kakamega Blind-snake Afrotyphlops kaimosae
- Katanga Beaked Snake Letheobia kibarae
- Kei Island Worm Snake Malayotyphlops kraalii
- Kenya Beaked Snake Rhinotyphlops unitaeniatus
- Kenyan Dwarf Blind-snake Afrotyphlops nanus
- Kimberley Deep-soil Blind Snake Anilios howi
- Kimberley Shallow-soil Blind Snake Anilios kimberleyensis
- Klemmer's Blind Snake Argyrophis klemmeri
- Koshun Worm Snake Argyrophis koshunensis
- Kunua Blind Snake Acutotyphlops kunuaensis
- La Hotte Blindsnake Typhlops agoralionis
- La Selle Blindsnake Typhlops proancylops
- Laki Blind Snake Xerotyphlops luristanicus
- Leeward Blindsnake Antillotyphlops geotomus
- Lesser Sunda Blindsnake Sundatyphlops polygrammicus
- Letheobia acutirostrata
- Letheobia coecatus
- Liberia Worm Snake Letheobia leucosticta
- Lineolate Blind Snake Afrotyphlops lineolatus
- Liwale Blind-snake Afrotyphlops tanganicanus
- Long Worm Snake Indotyphlops longissimus
- Long-beaked Blind Snake Anilios grypus
- Long-nosed Worm Snake Letheobia episcopus
- Lorenz's Blind Snake Ramphotyphlops lorenzi
- Loveridge's Worm Snake Indotyphlops loveridgei
- Loyalty Islands Blind Snake Ramphotyphlops willeyi
- Luzon Worm Snake Malayotyphlops luzonensis
- Léopoldville Beaked Snake Letheobia praeocularis
- Madagascar Sand Worm Snake Madatyphlops microcephalus
- Madagascar Worm Snake Madatyphlops madagascariensis
- Madatyphlops albanalis
- Madatyphlops rajeryi
- Maisi Blindsnake Cubatyphlops anchaurus
- Malcolm's Worm Snake Indotyphlops malcolmi
- Manila Worm Snake Malayotyphlops manilae
- Mann's Worm Snake Letheobia manni
- Mann's Worm Snake (angeli) Letheobia angeli
- Manukwari Blind Snake Ramphotyphlops similis
- Marx's Worm Snake Ramphotyphlops marxi
- Mbeere gracile blind snake Letheobia mbeerensis
- Melanesia Blindsnake Ramphotyphlops depressus
- Mocquard's Worm Snake Madatyphlops decorsei
- Molly Ozaki's Blind Snake Ramphotyphlops mollyozakiae
- Mona Blindsnake Antillotyphlops monensis
- Montserrat Worm Snake Antillotyphlops monastus
- Mornington Blind Snake Anilios vagurima
- Murchison Blind Snake Anilios leptosoma
- Müller's Blind Snake Argyrophis muelleri
- Newton's Beaked Snake Letheobia newtoni
- Northern Blind Snake (diversus) Anilios diversus
- Northern New Guinea Blindsnake Anilios erycinus
- Olive Blind Snake Ramphotyphlops olivaceus
- Oriente Blindsnake Typhlops silus
- Palau Island Blind Snake Ramphotyphlops acuticauda
- Pale-headed Blind Snake Anilios hamatus
- Parker's Worm Snake (ocularis) Madatyphlops ocularis
- Pauwels' Beaked Snake Letheobia pauwelsi
- Pemba Gracile Blind-snake Letheobia pembana
- Pernambuco Worm Snake Amerotyphlops paucisquamus
- Pestel Blindsnake Typhlops sylleptor
- Pied Worm Snake Indotyphlops leucomelas
- Pilbara Blind Snake Anilios pilbarensis
- Prong-snouted Blind Snake Anilios bituberculatus
- Proximus Blind Snake Anilios proximus
- Puerto Rican Coastal Blindsnake Antillotyphlops hypomethes
- Puerto Rican Worm Snake Typhlops rostellatus
- Ramphotyphlops adocetus
- Ramphotyphlops hatmaliyeb
- Red Blind Snake Acutotyphlops infralabialis
- Red Worm Snake Malayotyphlops ruber
- Red-headed Worm Snake Malayotyphlops ruficauda
- Reticulate Worm Snake Amerotyphlops reticulatus
- Reuters Blind Snake Madatyphlops reuteri
- Richard's Worm Snake Antillotyphlops richardi
- Richmond's Worm Snake Typhlops capitulatus
- Roberts' Blind Snake Anilios robertsi
- Robust Blind Snake Anilios ligatus
- Rondo Worm Snake Afrotyphlops rondoensis
- Rotund Blind Snake Anilios pinguis
- Round-tailed Blind Snake Anilios aspina
- Roxane's Blind Snake Argyrophis roxaneae
- Saint Barts Blindsnake Antillotyphlops annae
- Salawati Blindsnake Ramphotyphlops supranasalis
- Samagutin Worm Snake Indotyphlops tenuicollis
- Sand Worm Snake (arenarius) Madatyphlops arenarius
- Sand-diving Blind Snake Anilios ammodytes
- Sandamara Blind Snake Anilios troglodytes
- Schinz's Beaked Blind Snake Rhinotyphlops schinzi
- Schlegel's Giant Blind Snake Afrotyphlops schlegelii
- Schmidt's blind-snake Afrotyphlops schmidti
- Schmutz's Worm Snake Indotyphlops schmutzi
- Schwartz' Worm Snake Typhlops schwartzi
- Scortecci's Blind-snake Rhinotyphlops scortecci
- Sharp-snouted Blindsnake Anilios systenos
- Siamese Blind Snake Argyrophis siamensis
- Sierra Madre Blind Snake Malayotyphlops denrorum
- Slender Worm Snake Indotyphlops porrectus
- Small-eyed Blind Snake Anilios micromma
- Small-headed Blind Snake (affinis) Anilios affinis
- Small-headed Blind Snake (mansuetus) Ramphotyphlops mansuetus
- Socotra Worm Snake Xerotyphlops socotranus
- Somali Blind-snake Rhinotyphlops ataeniatus
- Somali Giant Blind-snake Afrotyphlops brevis
- South India Worm Snake Indotyphlops pammeces
- Southern Blind Snake (australis) Anilios australis
- Southern Gracile Blind-snake Afrotyphlops obtusus
- Southern New Guinea Blindsnake Ramphotyphlops bipartitus
- Splendid Blind Snake Anilios splendidus
- Spotted Blind Snake Afrotyphlops punctatus
- Sri Lanka Worm Snake Indotyphlops lankaensis
- St. Thomas Beaked Snake Letheobia feae
- Stadelman's Worm Snake Amerotyphlops stadelmani
- Steinhaus' Worm Snake Afrotyphlops steinhausi
- Stejneger's Beaked Snake Letheobia stejnegeri
- Sternfeld's Beaked Snake Letheobia graueri
- Striate Blind Snake Anilios broomi
- Striped Blind Snake Ramphotyphlops lineatus
- Sudan Beaked Snake Letheobia sudanensis
- Sulu Islands Worm Snake Ramphotyphlops suluensis
- Sumatra Worm Snake Argyrophis hypsobothrius
- Swahili Gracile Blind-snake Letheobia swahilica
- Sylvia's Blind Snake Anilios silvia
- Syrian Blind Snake Xerotyphlops syriacus
- Tanga Worm Snake Afrotyphlops platyrhynchus
- Taylor's Worm Snake Malayotyphlops canlaonensis
- Thomas' Worm Snake Typhlops hectus
- Titan Worm Snake Typhlops titanops
- Top End Blind Snake Anilios guentheri
- Torit Gracile Blind-snake Letheobia toritensis
- Torres Strait Blindsnake Anilios torresianus
- Trang Worm Snake Argyrophis trangensis
- Trinidad Worm Snake Amerotyphlops trinitatus
- Typhlops grivensis
- Typhlops leptolepis
- Typhlops oxyrhinus
- Typhlops pachyrhinus
- Uluguru Gracile Blind-snake Letheobia uluguruensis
- Urungu Beaked Snake Letheobia gracilis
- Usambara Blind-snake Afrotyphlops usambaricus
- Usambara Spotted Worm Snake Afrotyphlops gierrai
- Vedda Worm Snake Indotyphlops veddae
- Vietnam Worm Snake Argyrophis giadinhensis
- Violet Worm Snake Indotyphlops violaceus
- Wedgenose Worm Snake Afrotyphlops cuneirostris
- Weidholz's Pink Blindsnake Letheobia weidholzi
- West Kimberley Blindsnake Anilios zonula
- White-headed Beaked Snake Rhinotyphlops leucocephalus
- White-headed Blind Snake Indotyphlops albiceps
- White-tailed Blindsnake Anilios leucoproctus
- Witte's Beaked Snake Letheobia wittei
- Wormlike Beaked Snake Letheobia lumbriciformis
- Wynn's Worm Snake Malayotyphlops castanotus
- Yampi Blind Snake Anilios yampiensis
- Yellowbellied Blindsnake Ramphotyphlops flaviventer
- Yirrkala Blind Snake Anilios yirrikalae
- Yonenga Worm Snake Amerotyphlops yonenagae
- Yucatecan Worm Snake Amerotyphlops microstomus
- Zambezi Blind Snake Afrotyphlops mucruso
- Zanzibar Beaked Snake Letheobia pallida
- Zenker's Worm Snake Letheobia zenkeri
Uropeltidae 65
- Anamally Earth Snake Uropeltis macrorhyncha
- Beddome's Black Earth Snake Melanophidium punctatum
- Beddome's Earth Snake Uropeltis beddomii
- Bhupathy's Shieldtail Uropeltis bhupathyi
- Bicatenate Uropeltis Uropeltis bicatenata
- Blyth's earth snake Rhinophis blythii
- Bombay Earth Snake Uropeltis macrolepis
- Boulenger's Earth Snake Uropeltis myhendrae
- Brougham's Earth Snake Uropeltis broughami
- Cardamom Hills Earth Snake Rhinophis fergusonianus
- Deraniyagala's Earth Snake Rhinophis tricoloratus
- Drummond-hay's Earth Snake Rhinophis drummondhayi
- Eastern Ghats Snake Rhinophis goweri
- Elliot's Earth Snake Uropeltis ellioti
- Eranga Viraj's Shieldtail Snake Rhinophis erangaviraji
- Gray's Earth Snake Rhinophis melanogaster
- Günther's Burrowing Snake Plectrurus guentheri
- Günther's Earth Snake Uropeltis liura
- Indian Black Earth Snake Melanophidium wynaudense
- Jerdon’s Shieldtail Snake Uropeltis jerdoni
- Karinthandan Earth Snake Rhinophis karinthandani
- Karnataka Burrowing Snake Pseudoplectrurus canaricus
- Kerala Burrowing Snake Plectrurus aureus
- Kerala burrowing snake Plecturus aureus
- Kerala Shieldtail Uropeltis ceylanica
- Khaire's Black Shieldtail Melanophidium khairei
- Large Shieldtail Snake Rhinophis saffragamus
- Lined Thorntail Snake Platyplectrurus trilineatus
- Madura Earth Snake Uropeltis madurensis
- Matale Shieldtail Rhinophis gunasekarai
- Mendis' Shieldtail Rhinophis mendisi
- Müller's Earth Snake Rhinophis punctatus
- Nilgiri Burrowing Snake Plectrurus perroteti
- Nilgiri burrowing snake Plecturus perroteti
- Ocellated Earth Snake Uropeltis ocellata
- Palni Mountain Burrowing Snake Teretrurus rhodogaster
- Palni Shieldtail Uropeltis pulneyensis
- Peters' Philippine Earth Snake Rhinophis philippinus
- Phillipps' Earth Snake Rhinophis phillipsi
- Phipson's Shieldtail Uropeltis phipsonii
- Polkadot Earth Snake Rhinophis dorsimaculatus
- Purple-red Earth Snake Teretrurus sanguineus
- Rajendran’s Shieldtail snake Uropeltis rajendrani
- Red-lined Earth Snake Uropeltis rubrolineata
- Red-spotted Earth Snake Uropeltis rubromaculata
- Roshan Perera's Shieldtail Rhinophis roshanpererai
- Salty Earth Snake Rhinophis sanguineus
- Schneider's Earth Snake Rhinophis oxyrhynchus
- Shevaroy HilIs Earth Snake Uropeltis shorttii
- Shieldtail Earth Snake Uropeltis petersi
- Sirumalai Hills Earth Snake Uropeltis dindigalensis
- Smith's Earth Snake Uropeltis grandis
- Southern Earth Snake Uropeltis nitida
- Spotted Earth Snake Uropeltis maculata
- Striped Rhinophis Rhinophis lineatus
- Tamil Nadu Earth Snake Rhinophis travancoricus
- Three-cusped uropeltis Uropeltis tricuspida
- Tirunelveli Earth Snake Uropeltis arcticeps
- Travancore Hills Thorntail Snake Platyplectrurus madurensis
- Trevelyan's Earth Snake Rhinophis homolepis
- Two-lined Black Earth Snake Melanophidium bilineatum
- Wayanad Earth Snake Rhinophis melanoleucus
- Willey's Earth Snake Rhinophis porrectus
- Woodmason's Earth Snake Uropeltis woodmasoni
- Zigzag Rhinophis Rhinophis zigzag
Viperidae 414
- Acuminate Bush Viper Atheris acuminata
- Adder Vipera nikolskii
- African Bush Viper Atheris squamigera
- African Hairy Bush Viper Atheris hispida
- African Saw-scaled Viper Echis ocellatus
- Alai Pit Viper Gloydius rickmersi
- Alashan pitviper Gloydius cognatus
- Albany Adder Bitis albanica
- Alburzi Viper Vipera eriwanensis
- Alcatrazes Lancehead Bothrops alcatraz
- Altai Viper Vipera altaica
- Anamala Pit Viper Craspedocephalus anamallensis
- Anatolian Meadow Viper Vipera anatolica
- Andaman pitviper Trimeresurus andersonii
- Andean Forest-pitviper Bothrops pulcher
- Andean Lancehead Bothrocophias andianus
- Angolan Adder Bitis heraldica
- Arabian Sand Viper Cerastes gasperettii
- Arizona Black Rattlesnake Crotalus cerberus
- Armenian Viper Montivipera raddei
- Aruba Island Rattlesnake Crotalus unicolor
- Arunachal Pitviper Trimeresurus arunachalensis
- Ashe's Bush Viper Atheris desaixi
- Ashy Pit-viper Craspedocephalus puniceus
- Asian sand viper Eristicophis macmahoni
- Asp Viper Vipera aspis
- Autlán Long-tailed Rattlesnake Crotalus lannomi
- Bale Mountains adder Bitis harenna
- Bamboo Pitviper Trimeresurus erythrurus
- Banded Pit Viper Trimeresurus fasciatus
- Barat Bamboo Pitviper Trimeresurus barati
- Barbour's Montane Pit Viper Mixcoatlus barbouri
- Barnett's Lancehead Bothrops barnetti
- Basilisk Rattlesnake Crotalus basiliscus
- Black-headed Bushmaster Lachesis melanocephala
- Black-speckled Palm Pit Viper Bothriechis nigroviridis
- Black-tailed Horned Pitviper Mixcoatlus melanurus
- Black-tailed Rattlesnake Crotalus molossus
- Blotched Palm-Pitviper Bothriechis supraciliaris
- Bolivian Lancehead Bothrops sanctaecrucis
- Borkin's Viper Echis borkini
- Borneo Pit Viper Craspedocephalus borneensis
- Bothrocophias myrringae
- Bothrocophias tulitoi
- Bothrops monsignifer
- Bothrops sonene
- Brazil's Lancehead Bothrops brazili
- Brazil's Lancehead (oligobalius) Bothrops oligobalius
- Brazilian Lancehead Bothrops moojeni
- Broad-banded Copperhead Agkistrodon laticinctus
- Broad-banded Temple Pitviper Tropidolaemus laticinctus
- Broad-horned Pitviper Ophryacus sphenophrys
- Broadley's Bush Viper Atheris broadleyi
- Brongersma's Pit Viper Craspedocephalus brongersmai
- Brown Spotted Pitviper Protobothrops mucrosquamatus
- Brown's Montane Pitviper Mixcoatlus browni
- Brown-spotted Pit Viper Trimeresurus venustus
- Bushmaster Lachesis muta
- Caatinga Lancehead Bothrops erythromelas
- Cacica Bothrops ayerbei
- Campbell's Rattlesnake Crotalus campbelli
- Cantil Agkistrodon russeolus
- Cantor's Pit Viper Trimeresurus cantori
- Cardamom Mountains Green Pitviper Trimeresurus cardamomensis
- Cascabel Rattlesnake Crotalus durissus
- Cat Lancehead Bothrops rhombeatus
- Catalina Island Rattlesnake Crotalus catalinensis
- Caucasian pitviper Gloydius caucasicus
- Caucasus Viper Vipera kaznakovi
- Central American Bushmaster Lachesis stenophrys
- Central American Jumping Pit Viper Metlapilcoatlus mexicanus
- Central Asian pitviper Gloydius intermedius
- Central Nicobar Pit Viper Trimeresurus mutabilis
- Cerastes boehmei
- Cerrado Lancehead (pauloensis) Bothrops pauloensis
- Cerro Petlalcala Montane Pitviper Cerrophidion petlalcalensis
- Ceylon Pit Viper Craspedocephalus trigonocephalus
- Chamba Pitviper Gloydius chambensis
- Chinese Green Tree Viper Trimeresurus stejnegeri
- Chinese Moccasin Deinagkistrodon acutus
- Chinese Mountain Pit Viper Ovophis monticola
- Chocoan Bushmaster Lachesis acrochorda
- Chocoan Forest Pit Viper Bothrops punctatus
- Chocoan Toadheaded Pitviper Bothrocophias myersi
- Clouded Pit Viper Trimeresurus nebularis
- Coffee Palm Viper Bothriechis lateralis
- Colombian Lancehead Bothrocophias colombianus
- Common Bamboo Viper Craspedocephalus gramineus
- Common Night Adder Causus rhombeatus
- Copperhead Agkistrodon contortrix
- Costa Rica Montane Pitviper Cerrophidion sasai
- Cotiara Bothrops cotiara
- Cottonmouth Agkistrodon piscivorus
- Craspedocephalus rubeus
- Cross-banded Mountain Rattlesnake Crotalus transversus
- Crotalus aquaticus
- Crotalus caliginis
- Crotalus lugubris
- Crotalus muertensis
- Crotalus potterensis
- Cryptelytrops honsonensis
- Cyclades Blunt-nosed Viper Macrovipera schweizeri
- Dabie Mountains Pit Viper Protobothrops dabieshanensis
- Darevsky's Viper Vipera darevskii
- David's pitviper Trimeresurus davidi
- Desert Horned Viper Cerastes cerastes
- Desert Lancehead Bothrops pictus
- Desert Mountain Adder Bitis xeropaga
- Desert Viper Daboia deserti
- Dinnik's Viper Vipera dinniki
- Dunn's Hognose Viper Porthidium dunni
- Dwarf Puff Adder Bitis peringueyi
- Eastern Black-tailed Rattlesnake Crotalus ornatus
- Eastern Diamondback Rattlesnake Crotalus adamanteus
- Eastern Russel's Viper Daboia siamensis
- Ecuadorian Toadhead Bothrocophias campbelli
- Egyptian Saw-scaled Viper Echis pyramidum
- Elegant Pitviper Protobothrops elegans
- Emerald Horned Pitviper Ophryacus smaragdinus
- Ethiopia Viper Bitis parviocula
- European Adder Vipera berus
- Eyelash Viper Bothriechis schlegelii
- Fairy Pitviper Trimeresurus buniana
- Fea Viper Azemiops feae
- Fer-de-Lance Bothrops atrox
- Fer-de-lance Bothrops asper
- Field's Horned Viper Pseudocerastes fieldi
- Florida Cottonmouth Agkistrodon conanti
- Fonseca's Lancehead Bothrops fonsecai
- Forest Night Adder Causus lichtensteinii
- Franceses island-Lancehead Bothrops sazimai
- Gaboon Viper Bitis gabonica
- Glacier pit viper Gloydius swild
- Gloyd's Moccasin Agkistrodon howardgloydi
- Gloydius changdaoensis
- Gloydius qinlingensis
- Gobi pitviper Gloydius stejnegeri
- Godman's Montane Pit Viper Cerrophidion godmani
- Golden Lancehead Bothrops insularis
- Great Basin Rattlesnake Crotalus lutosus
- Great Lakes Bush Viper Atheris nitschei
- Greek Meadow Viper Vipera graeca
- Green Bamboo Leaf Pit Viper Trimeresurus medoensis
- Green Bush Viper Atheris chlorechis
- Green Jararaca Bothrops bilineatus
- Green Night Adder Causus resimus
- Guatemala Palm Pit Viper Bothriechis bicolor
- Guerreran Long-tailed Rattlesnake Crotalus ericsmithi
- Guifarro's Palm Pitviper Bothriechis guifarroi
- Gumprecht's Pit Viper Trimeresurus gumprechti
- Gunalen's Pitviper Trimeresurus gunaleni
- Guo's Green Pit Viper Trimeresurus guoi
- Habu Protobothrops flavoviridis
- Habu Pit Viper Protobothrops himalayanus
- Halys Pit Viper Gloydius halys
- Hetfield's Bush Viper Atheris hetfieldi
- Himalayan Pitviper Gloydius himalayanus
- Hognose Lancehead Bothrocophias hyoprora
- Hognosed Pit Viper Porthidium nasutum
- Hon Son Pit Viper Trimeresurus honsonensis
- Honduras Jumping Pit Viper Metlapilcoatlus indomitus
- Honduras Montane Pitviper Cerrophidion wilsoni
- Horned Adder Bitis caudalis
- Horned Pit Viper Protobothrops cornutus
- Horsehead Island speckled rattlesnake Crotalus polisi
- Horseshoe Pit-viper Craspedocephalus strigatus
- Horseshoe Pitviper Trimeresurus strigatus
- Hughes' Saw-scaled Viper Echis hughesi
- Hump-nosed Moccasin Hypnale hypnale
- Hutton's Pitviper Tropidolaemus huttoni
- Inca Forest Pit Viper (chloromelas) Bothrops chloromelas
- Inca Forest Pit Viper (oligolepis) Bothrops oligolepis
- Indonesian Pit Viper Trimeresurus hageni
- Iranian Mountain Steppe Viper Vipera ebneri
- Isla Angel Rattlesnake Crotalus angelensis
- Isla Piojo Speckled Rattlesnake Crotalus thalassoporus
- Island Pit Viper Trimeresurus labialis
- Jabre’s Lancehead Bothrops jabrensis
- Jararaca Bothrops jararaca
- Jararaca Pintada Bothrops neuwiedi
- Jararacussu Bothrops jararacussu
- Jerdon's Pitviper Protobothrops jerdonii
- Jiuzhai pitviper Gloydius lateralis
- Joger's Saw-scaled Viper Echis jogeri
- Jonathan's Lancehead Bothrops jonathani
- Kanburi Pit Viper Trimeresurus kanburiensis
- Karaganda pitviper Gloydius caraganus
- Katanga Mountain Bush Viper Atheris katangensis
- Kaulback's Lance-headed Pitviper Protobothrops kaulbacki
- Kenya Horned Viper Bitis worthingtoni
- Kenya Montane Viper Montatheris hindii
- Khosatzki’s Saw-scaled Viper Echis khosatzkii
- Kikuchi Habu Trimeresurus gracilis
- Kramer's Pit Viper Trimeresurus macrops
- Kuhrang Mountain Viper Montivipera kuhrangica
- Kui Buri Pitviper Trimeresurus kuiburi
- Lancang Plateau Viper Gloydius huangi
- Lansberg's Hognosed Pit Viper Porthidium lansbergii
- Laophis crotaloides
- Large-headed Carpet Viper Echis megalocephalus
- Large-scaled Pit Viper Craspedocephalus macrolepis
- Lataste's Viper Vipera latastei
- Latifi's Viper Montivipera latifii
- Lebanon Viper Montivipera bornmuelleri
- Levantine Viper Macrovipera lebetinus
- Likiang pitviper Gloydius monticola
- Lojan Lancehead Bothrocophias lojanus
- Lotiev's Viper Vipera lotievi
- Lower California Rattlesnake Crotalus enyo
- Lowland Swamp Viper Proatheris superciliaris
- Lutz's Cerrado Lancehead Bothrops lutzi
- Macrovipera gedulyi
- Malabar Pit Viper Craspedocephalus malabaricus
- Malayan Brown Pit Viper Ovophis convictus
- Malayan Pit Viper Calloselasma rhodostoma
- Malcolm's Pitviper Trimeresurus malcolmi
- Mamushi Gloydius blomhoffii
- Manabi Hognose Pitviper Porthidium arcosae
- Many-horned Adder Bitis cornuta
- Mao-lan pitviper Protobothrops maolanensis
- Marajó Lancehead Bothrops marajoensis
- Marbled Lancehead Bothrops marmoratus
- March's Palm Pit Viper Bothriechis marchi
- Martinique Lancehead Bothrops lanceolatus
- Massasauga Sistrurus catenatus
- Matilda's Horned Viper Atheris matildae
- Mato Grosso Lancehead Bothrops mattogrossensis
- Maya's pit viper Trimeresurus mayaae
- Mayombe Bush-Viper Atheris anisolepis
- McGregor's pitviper Trimeresurus mcgregori
- Meadow Viper Vipera ursinii
- Merendon Palm Pit Viper Bothriechis thalassinus
- Metlapilcoatlus borealis
- Mexican Dusky Rattlesnake Crotalus armstrongi
- Mexican Lancehead Rattlesnake Crotalus polystictus
- Mexican Moccasin Agkistrodon bilineatus
- Mexican Pygmy Rattlesnake Crotalus ravus
- Mexican Smallhead Rattlesnake Crotalus intermedius
- Middle American Rattlesnake Crotalus simus
- Midget Faded Rattlesnake Crotalus concolor
- Moela’s lancehead Bothrops germanoi
- Mojave Rattlesnake Crotalus scutulatus
- Mongo Hairy Bush Viper Atheris mongoensis
- Moorish Viper Daboia mauritanica
- Mount Bulgar Viper Montivipera bulgardaghica
- Mount Kinabalu Pit Viper Garthius chaseni
- Mount Liupan Pitviper Gloydius liupanensis
- Mount Mabu bush viper Atheris mabuensis
- Mountain Adder Bitis atropos
- Mountain Viper (albizona) Montivipera albizona
- Mountain Viper (monticola) Vipera monticola
- Mt Rungwe Bush Viper Atheris rungweensis
- Mt. Mang Pitviper Protobothrops mangshanensis
- Murici Lancehead Bothrops muriciensis
- Nabang Pitviper Trimeresurus caudornatus
- Namaqua Dwarf Adder Bitis schneideri
- Nepal Pitviper Trimeresurus septentrionalis
- North Philippine Temple Pitviper Tropidolaemus subannulatus
- Northwestern Neotropical Rattlesnake Crotalus culminatus
- Nose-horned Viper Vipera ammodytes
- Nujiang pit viper Gloydius lipipengi
- Okinawa Pitviper Ovophis okinavensis
- Olmecan Pit Viper Metlapilcoatlus olmec
- Oman saw-scaled viper Echis omanensis
- Omkoi Lance-headed Pit Viper Protobothrops kelomohy
- Orlov's Viper Vipera orlovi
- Osborne's Lancehead Bothrops osbornei
- Ottoman Viper Montivipera xanthina
- Painted Lancehead Bothrops diporus
- Palestine Saw-scaled Viper Echis coloratus
- Palestine Viper Daboia palaestinae
- Palm vit viper Craspedocephalus wiroti
- Pampas Lancehead Bothrops pubescens
- Panamint Rattlesnake Crotalus stephensi
- Persian Horned Viper Pseudocerastes persicus
- Philippine pitviper Trimeresurus flavomaculatus
- Phuket Pitviper Trimeresurus phuketensis
- Picado's Pit Viper Atropoides picadoi
- Piraja's Lancehead Bothrops pirajai
- Plain Mountain Adder Bitis inornata
- Pope's Bamboo Pit Viper Trimeresurus popeiorum
- Popeia buniana
- Prairie Rattlesnake Crotalus viridis
- Puff Adder Bitis arietans
- Pygmy Rattlesnake Sistrurus miliarius
- Quang Binh pitviper Trimeresurus truongsonensis
- Queretaran Dusky Rattlesnake Crotalus aquilus
- Rasmussen’s Night Adder Causus rasmusseni
- Razi's Viper Macrovipera razii
- Red Adder Bitis rubida
- Red Diamond Rattlesnake Crotalus ruber
- Rhinoceros Viper Bitis rhinoceros
- Rhinoceros Viper (nasicornis) Bitis nasicornis
- Ridge-nosed Rattlesnake Crotalus willardi
- Rock Rattlesnake Crotalus lepidus
- Roman's Carpet Viper Echis romani
- Roman's Saw-scaled Viper Echis leucogaster
- Rowley's Palm Pit Viper Bothriechis rowleyi
- Russell's Viper Daboia russelii
- Sabah Pit Viper Trimeresurus sabahi
- Sahara Sand Viper Cerastes vipera
- Saint Lucia Viper Bothrops caribbaeus
- Sako's Viper Vipera sakoi
- Salazar's Pit Viper Trimeresurus salazar
- San Esteban Island Rattlesnake Crotalus estebanensis
- San Lorenzo Island Rattlesnake Crotalus lorenzoensis
- Sao Paulo Lancehead Bothrops itapetiningae
- Saw-scaled Viper Echis carinatus
- Schultze's Pit Viper Trimeresurus schultzei
- Seoane's Viper Vipera seoanei
- Shedao island pitviper Gloydius shedaoensis
- Shore Pit Viper Trimeresurus purpureomaculatus
- Short-tailed Pit Viper Gloydius brevicauda
- Sichuan pitviper Trimeresurus sichuanensis
- Sidewinder Crotalus cerastes
- Sinaloan Long-tailed Rattlesnake Crotalus stejnegeri
- Slender Hognose Viper Porthidium ophryomegas
- Slender-horned Pitviper Ophryacus undulatus
- Small-eyed Toadhead Bothrocophias microphthalmus
- Snouted Night Adder Causus defilippii
- South Philippine Temple Pitviper Tropidolaemus philippensis
- Southern Adder Bitis armata
- Southern Large-scaled pit viper Craspedocephalus peltopelor
- Southern Pacific Rattlesnake Crotalus helleri
- Southwestern Speckled Rattlesnake Crotalus pyrrhus
- Speckled Forest Pit Viper Bothrops taeniatus
- Speckled Rattlesnake Crotalus mitchellii
- Spider-tailed Viper Pseudocerastes urarachnoides
- Spotted Night Adder Causus maculatus
- Sri Lanka Humpnose Viper Hypnale nepa
- Steppe Viper Vipera renardi
- Strauch's Pitviper Gloydius strauchi
- Sumatra Pit Viper Trimeresurus sumatranus
- Sumatran Palm Pit Viper Craspedocephalus andalasensis
- Szechwan Pit Viper Protobothrops xiangchengensis
- Tai Hairy Bush Viper Atheris hirsuta
- Taiwan Mountain Pitviper Ovophis makazayazaya
- Talamancan Palm-Pitviper Bothriechis nubestris
- Tamaulipan Rock Rattlesnake Crotalus morulus
- Tancitaran Dusky Rattlesnake Crotalus pusillus
- Tancitaro Rattlesnake Crotalus tancitarensis
- Taylor's Cantil Agkistrodon taylori
- Tehuantepec Isthmus Neotropical rattlesnake Crotalus ehecatl
- Three Horned-scaled Pitviper Protobothrops sieversorum
- Tibetan Pit Viper Trimeresurus tibetanus
- Tiger Rattlesnake Crotalus tigris
- Timber Rattlesnake Crotalus horridus
- Tlaloc's Rattlesnake Crotalus tlaloci
- Toba Pitviper Trimeresurus toba
- Tokara Habu Protobothrops tokarensis
- Tongtianhe pit viper Gloydius rubromaculatus
- Tonkin pitviper Ovophis tonkinensis
- Tortuga Island Rattlesnake Crotalus tortugensis
- Totonacan Rattlesnake Crotalus totonacus
- Transcaucasian Long-nosed Viper Vipera transcaucasiana
- Travancore Pit Viper Craspedocephalus travancoricus
- Trimeresurus andalasensis
- Trimeresurus macrolepis
- Trimeresurus yingjiangensis
- Trungkhanh Pitviper Protobothrops trungkhanhensis
- Tsushima Island Pitviper Gloydius tsushimaensis
- Turkish Viper Vipera barani
- Twin-spotted Rattlesnake Crotalus pricei
- Two-lined Night Adder Causus bilineatus
- Tzotzil Montane Pit Viper Cerrophidion tzotzilorum
- Ujarran Hognose Viper Porthidium volcanicum
- Uracoan Rattlesnake Crotalus vegrandis
- Urutu Bothrops alternatus
- Usambara Eyelash Viper Atheris ceratophora
- Ussuri Mamushi Gloydius ussuriensis
- Uzungwe Mountain Bush Viper Atheris barbouri
- Variable Bush Viper Atheris subocularis
- Venezuela Forest Pit Viper Bothrops medusa
- Venezuela Lancehead Bothrops venezuelensis
- Veracruz Neotropical rattlesnake Crotalus mictlantecuhtli
- Vipera antiqua
- Vipera chloris
- Vipera gedulyi
- Vipera illyrica
- Vipera maghrebiana
- Vipera maxima
- Vipera meotica
- Vipera nasua
- Vipera natiensis
- Vipera platyspondyla
- Vipera sarmatica
- Vipera ukrainica
- Vipera walser
- Vipera weigeli
- Vitória's Lancehead Bothrops otavioi
- Vogel's Pit Viper Trimeresurus vogeli
- Wagler's Pit Viper Tropidolaemus wagleri
- Wagner's Viper Montivipera wagneri
- Western bamboo pit viper Craspedocephalus occidentalis
- Western Diamond-backed Rattlesnake Crotalus atrox
- Western Dusky Rattlesnake Crotalus triseriatus
- Western Hognose Viper Porthidium hespere
- Western Jumping Pitviper Metlapilcoatlus occiduus
- Western Massasauga Sistrurus tergeminus
- Western Rattlesnake Crotalus oreganus
- White-headed Fea Viper Azemiops kharini
- White-lipped Island Pitviper Trimeresurus insularis
- White-lipped Pitviper Trimeresurus albolabris
- White-tailed Hognose Pitviper Porthidium porrasi
- Whitetail Lancehead Bothrops leucurus
- Wirot's Pit Viper Trimeresurus wiroti
- Yararanata Bothrops ammodytoides
- Yellow-blotched Palm Pit Viper Bothriechis aurifer
- Yucatan Neotropical Rattlesnake Crotalus tzabcan
- Yucatán Hognose Viper Porthidium yucatanicum
- Yunnan Pit Viper Trimeresurus yunnanensis
- Zara Hypnale zara
- Zayuan mountain pitviper Ovophis zayuensis
- Zoige pit viper Gloydius angusticeps
Xenodermidae 32
- Amami Takachiho Snake Achalinus werneri
- Bearded snake Fimbrios klossi
- Black Odd-scaled Snake Achalinus niger
- Borneo Red Snake Stoliczkia borneensis
- Bourret's Odd-scaled Snake Achalinus ater
- Daming Odd-scaled Snake Achalinus damingensis
- Dehua Odd–scaled Snake Achalinus dehuaensis
- Dragon snake Xenodermus javanicus
- Emily’s Burrowing Snake Achalinus emilyae
- Formosa Odd-scaled Snake Achalinus formosanus
- Grey Burrowing Snake Achalinus spinalis
- Hainan Odd-scaled Snake Achalinus hainanus
- Huang’s Odd-scaled Snake Achalinus huangjietangi
- Hunan Odd-scale Snake Achalinus hunanensis
- Julian’s Burrowing Snake Achalinus juliani
- Khase Red Snake Stoliczkia khasiensis
- Lushai Hills Dragon Snake Stoliczkia vanhnuailianai
- Ningshan Odd-scaled Snake Achalinus ningshanensis
- Panzhihua Odd-scaled Snake Achalinus panzhihuaensis
- Parafimbrios vietnamensis
- Pingbian odd-scaled snake Achalinus pingbianensis
- Rufous burrowing snake Achalinus rufescens
- Sichuan Odd-scaled Snake Achalinus meiguensis
- Smith's Rough Water Snake Fimbrios smithi
- Stolickza's Stream Snake Paraxenodermus borneensis
- Tim’s Burrowing Snake Achalinus timi
- Trang An Burrowing Snake Achalinus tranganensis
- Yang’s Odd-scaled Snake Achalinus yangdatongi
- Yuinkai Mountains Burrowing Snake Achalinus yunkaiensis
- Ziggy Stardust Snake Parafimbrios lao
- Zong's Odd-scaled Snake Achalinus jinggangensis
- Zug's Odd-scaled Snake Achalinus zugorum
Xenopeltidae 2
- Hainan Sunbeam Snake Xenopeltis hainanensis
- Sunbeam Snake Xenopeltis unicolor
Xenophidiidae 2
- Bornean spine-jawed snake Xenophidion acanthognathus
- Malayan Spinejaw Snake Xenophidion schaeferi
Xenotyphlopidae 1
- Madagascar blindsnake Xenotyphlops grandidieri