Viperidae
The family Viperidae has 414 species in SnakeList - 414 venomous and 0 non-venomous, in 40 genera.
- Bushmaster Lachesis muta venomous
- Copperhead Agkistrodon contortrix venomous
- Cottonmouth Agkistrodon piscivorus venomous
- Eastern Diamondback Rattlesnake Crotalus adamanteus venomous
- Gaboon Viper Bitis gabonica venomous
- Massasauga Sistrurus catenatus venomous
- Mojave Rattlesnake Crotalus scutulatus venomous
- Prairie Rattlesnake Crotalus viridis venomous
- Puff Adder Bitis arietans venomous
- Rhinoceros Viper Bitis rhinoceros venomous
- Saw-scaled Viper Echis carinatus venomous
- Sidewinder Crotalus cerastes venomous
- Timber Rattlesnake Crotalus horridus venomous
- Western Diamond-backed Rattlesnake Crotalus atrox venomous
- Acuminate Bush Viper Atheris acuminata venomous
- Adder Vipera nikolskii venomous
- African Bush Viper Atheris squamigera venomous
- African Hairy Bush Viper Atheris hispida venomous
- African Saw-scaled Viper Echis ocellatus venomous
- Alai Pit Viper Gloydius rickmersi venomous
- Alashan pitviper Gloydius cognatus venomous
- Albany Adder Bitis albanica venomous
- Alburzi Viper Vipera eriwanensis venomous
- Alcatrazes Lancehead Bothrops alcatraz venomous
- Altai Viper Vipera altaica venomous
- Anamala Pit Viper Craspedocephalus anamallensis venomous
- Anatolian Meadow Viper Vipera anatolica venomous
- Andaman pitviper Trimeresurus andersonii venomous
- Andean Forest-pitviper Bothrops pulcher venomous
- Andean Lancehead Bothrocophias andianus venomous
- Angolan Adder Bitis heraldica venomous
- Arabian Sand Viper Cerastes gasperettii venomous
- Arizona Black Rattlesnake Crotalus cerberus venomous
- Armenian Viper Montivipera raddei venomous
- Aruba Island Rattlesnake Crotalus unicolor venomous
- Arunachal Pitviper Trimeresurus arunachalensis venomous
- Ashe's Bush Viper Atheris desaixi venomous
- Ashy Pit-viper Craspedocephalus puniceus venomous
- Asian sand viper Eristicophis macmahoni venomous
- Asp Viper Vipera aspis venomous
- Autlán Long-tailed Rattlesnake Crotalus lannomi venomous
- Bale Mountains adder Bitis harenna venomous
- Bamboo Pitviper Trimeresurus erythrurus venomous
- Banded Pit Viper Trimeresurus fasciatus venomous
- Barat Bamboo Pitviper Trimeresurus barati venomous
- Barbour's Montane Pit Viper Mixcoatlus barbouri venomous
- Barnett's Lancehead Bothrops barnetti venomous
- Basilisk Rattlesnake Crotalus basiliscus venomous
- Black-headed Bushmaster Lachesis melanocephala venomous
- Black-speckled Palm Pit Viper Bothriechis nigroviridis venomous
- Black-tailed Horned Pitviper Mixcoatlus melanurus venomous
- Black-tailed Rattlesnake Crotalus molossus venomous
- Blotched Palm-Pitviper Bothriechis supraciliaris venomous
- Bolivian Lancehead Bothrops sanctaecrucis venomous
- Borkin's Viper Echis borkini venomous
- Borneo Pit Viper Craspedocephalus borneensis venomous
- Bothrocophias myrringae venomous
- Bothrocophias tulitoi venomous
- Bothrops monsignifer venomous
- Bothrops sonene venomous
- Brazil's Lancehead Bothrops brazili venomous
- Brazil's Lancehead (oligobalius) Bothrops oligobalius venomous
- Brazilian Lancehead Bothrops moojeni venomous
- Broad-banded Copperhead Agkistrodon laticinctus venomous
- Broad-banded Temple Pitviper Tropidolaemus laticinctus venomous
- Broad-horned Pitviper Ophryacus sphenophrys venomous
- Broadley's Bush Viper Atheris broadleyi venomous
- Brongersma's Pit Viper Craspedocephalus brongersmai venomous
- Brown Spotted Pitviper Protobothrops mucrosquamatus venomous
- Brown's Montane Pitviper Mixcoatlus browni venomous
- Brown-spotted Pit Viper Trimeresurus venustus venomous
- Caatinga Lancehead Bothrops erythromelas venomous
- Cacica Bothrops ayerbei venomous
- Campbell's Rattlesnake Crotalus campbelli venomous
- Cantil Agkistrodon russeolus venomous
- Cantor's Pit Viper Trimeresurus cantori venomous
- Cardamom Mountains Green Pitviper Trimeresurus cardamomensis venomous
- Cascabel Rattlesnake Crotalus durissus venomous
- Cat Lancehead Bothrops rhombeatus venomous
- Catalina Island Rattlesnake Crotalus catalinensis venomous
- Caucasian pitviper Gloydius caucasicus venomous
- Caucasus Viper Vipera kaznakovi venomous
- Central American Bushmaster Lachesis stenophrys venomous
- Central American Jumping Pit Viper Metlapilcoatlus mexicanus venomous
- Central Asian pitviper Gloydius intermedius venomous
- Central Nicobar Pit Viper Trimeresurus mutabilis venomous
- Cerastes boehmei venomous
- Cerrado Lancehead (pauloensis) Bothrops pauloensis venomous
- Cerro Petlalcala Montane Pitviper Cerrophidion petlalcalensis venomous
- Ceylon Pit Viper Craspedocephalus trigonocephalus venomous
- Chamba Pitviper Gloydius chambensis venomous
- Chinese Green Tree Viper Trimeresurus stejnegeri venomous
- Chinese Moccasin Deinagkistrodon acutus venomous
- Chinese Mountain Pit Viper Ovophis monticola venomous
- Chocoan Bushmaster Lachesis acrochorda venomous
- Chocoan Forest Pit Viper Bothrops punctatus venomous
- Chocoan Toadheaded Pitviper Bothrocophias myersi venomous
- Clouded Pit Viper Trimeresurus nebularis venomous
- Coffee Palm Viper Bothriechis lateralis venomous
- Colombian Lancehead Bothrocophias colombianus venomous
- Common Bamboo Viper Craspedocephalus gramineus venomous
- Common Night Adder Causus rhombeatus venomous
- Costa Rica Montane Pitviper Cerrophidion sasai venomous
- Cotiara Bothrops cotiara venomous
- Craspedocephalus rubeus venomous
- Cross-banded Mountain Rattlesnake Crotalus transversus venomous
- Crotalus aquaticus venomous
- Crotalus caliginis venomous
- Crotalus lugubris venomous
- Crotalus muertensis venomous
- Crotalus potterensis venomous
- Cryptelytrops honsonensis venomous
- Cyclades Blunt-nosed Viper Macrovipera schweizeri venomous
- Dabie Mountains Pit Viper Protobothrops dabieshanensis venomous
- Darevsky's Viper Vipera darevskii venomous
- David's pitviper Trimeresurus davidi venomous
- Desert Horned Viper Cerastes cerastes venomous
- Desert Lancehead Bothrops pictus venomous
- Desert Mountain Adder Bitis xeropaga venomous
- Desert Viper Daboia deserti venomous
- Dinnik's Viper Vipera dinniki venomous
- Dunn's Hognose Viper Porthidium dunni venomous
- Dwarf Puff Adder Bitis peringueyi venomous
- Eastern Black-tailed Rattlesnake Crotalus ornatus venomous
- Eastern Russel's Viper Daboia siamensis venomous
- Ecuadorian Toadhead Bothrocophias campbelli venomous
- Egyptian Saw-scaled Viper Echis pyramidum venomous
- Elegant Pitviper Protobothrops elegans venomous
- Emerald Horned Pitviper Ophryacus smaragdinus venomous
- Ethiopia Viper Bitis parviocula venomous
- European Adder Vipera berus venomous
- Eyelash Viper Bothriechis schlegelii venomous
- Fairy Pitviper Trimeresurus buniana venomous
- Fea Viper Azemiops feae venomous
- Fer-de-Lance Bothrops atrox venomous
- Fer-de-lance Bothrops asper venomous
- Field's Horned Viper Pseudocerastes fieldi venomous
- Florida Cottonmouth Agkistrodon conanti venomous
- Fonseca's Lancehead Bothrops fonsecai venomous
- Forest Night Adder Causus lichtensteinii venomous
- Franceses island-Lancehead Bothrops sazimai venomous
- Glacier pit viper Gloydius swild venomous
- Gloyd's Moccasin Agkistrodon howardgloydi venomous
- Gloydius changdaoensis venomous
- Gloydius qinlingensis venomous
- Gobi pitviper Gloydius stejnegeri venomous
- Godman's Montane Pit Viper Cerrophidion godmani venomous
- Golden Lancehead Bothrops insularis venomous
- Great Basin Rattlesnake Crotalus lutosus venomous
- Great Lakes Bush Viper Atheris nitschei venomous
- Greek Meadow Viper Vipera graeca venomous
- Green Bamboo Leaf Pit Viper Trimeresurus medoensis venomous
- Green Bush Viper Atheris chlorechis venomous
- Green Jararaca Bothrops bilineatus venomous
- Green Night Adder Causus resimus venomous
- Guatemala Palm Pit Viper Bothriechis bicolor venomous
- Guerreran Long-tailed Rattlesnake Crotalus ericsmithi venomous
- Guifarro's Palm Pitviper Bothriechis guifarroi venomous
- Gumprecht's Pit Viper Trimeresurus gumprechti venomous
- Gunalen's Pitviper Trimeresurus gunaleni venomous
- Guo's Green Pit Viper Trimeresurus guoi venomous
- Habu Protobothrops flavoviridis venomous
- Habu Pit Viper Protobothrops himalayanus venomous
- Halys Pit Viper Gloydius halys venomous
- Hetfield's Bush Viper Atheris hetfieldi venomous
- Himalayan Pitviper Gloydius himalayanus venomous
- Hognose Lancehead Bothrocophias hyoprora venomous
- Hognosed Pit Viper Porthidium nasutum venomous
- Hon Son Pit Viper Trimeresurus honsonensis venomous
- Honduras Jumping Pit Viper Metlapilcoatlus indomitus venomous
- Honduras Montane Pitviper Cerrophidion wilsoni venomous
- Horned Adder Bitis caudalis venomous
- Horned Pit Viper Protobothrops cornutus venomous
- Horsehead Island speckled rattlesnake Crotalus polisi venomous
- Horseshoe Pit-viper Craspedocephalus strigatus venomous
- Horseshoe Pitviper Trimeresurus strigatus venomous
- Hughes' Saw-scaled Viper Echis hughesi venomous
- Hump-nosed Moccasin Hypnale hypnale venomous
- Hutton's Pitviper Tropidolaemus huttoni venomous
- Inca Forest Pit Viper (chloromelas) Bothrops chloromelas venomous
- Inca Forest Pit Viper (oligolepis) Bothrops oligolepis venomous
- Indonesian Pit Viper Trimeresurus hageni venomous
- Iranian Mountain Steppe Viper Vipera ebneri venomous
- Isla Angel Rattlesnake Crotalus angelensis venomous
- Isla Piojo Speckled Rattlesnake Crotalus thalassoporus venomous
- Island Pit Viper Trimeresurus labialis venomous
- Jabre’s Lancehead Bothrops jabrensis venomous
- Jararaca Bothrops jararaca venomous
- Jararaca Pintada Bothrops neuwiedi venomous
- Jararacussu Bothrops jararacussu venomous
- Jerdon's Pitviper Protobothrops jerdonii venomous
- Jiuzhai pitviper Gloydius lateralis venomous
- Joger's Saw-scaled Viper Echis jogeri venomous
- Jonathan's Lancehead Bothrops jonathani venomous
- Kanburi Pit Viper Trimeresurus kanburiensis venomous
- Karaganda pitviper Gloydius caraganus venomous
- Katanga Mountain Bush Viper Atheris katangensis venomous
- Kaulback's Lance-headed Pitviper Protobothrops kaulbacki venomous
- Kenya Horned Viper Bitis worthingtoni venomous
- Kenya Montane Viper Montatheris hindii venomous
- Khosatzki’s Saw-scaled Viper Echis khosatzkii venomous
- Kikuchi Habu Trimeresurus gracilis venomous
- Kramer's Pit Viper Trimeresurus macrops venomous
- Kuhrang Mountain Viper Montivipera kuhrangica venomous
- Kui Buri Pitviper Trimeresurus kuiburi venomous
- Lancang Plateau Viper Gloydius huangi venomous
- Lansberg's Hognosed Pit Viper Porthidium lansbergii venomous
- Laophis crotaloides venomous
- Large-headed Carpet Viper Echis megalocephalus venomous
- Large-scaled Pit Viper Craspedocephalus macrolepis venomous
- Lataste's Viper Vipera latastei venomous
- Latifi's Viper Montivipera latifii venomous
- Lebanon Viper Montivipera bornmuelleri venomous
- Levantine Viper Macrovipera lebetinus venomous
- Likiang pitviper Gloydius monticola venomous
- Lojan Lancehead Bothrocophias lojanus venomous
- Lotiev's Viper Vipera lotievi venomous
- Lower California Rattlesnake Crotalus enyo venomous
- Lowland Swamp Viper Proatheris superciliaris venomous
- Lutz's Cerrado Lancehead Bothrops lutzi venomous
- Macrovipera gedulyi venomous
- Malabar Pit Viper Craspedocephalus malabaricus venomous
- Malayan Brown Pit Viper Ovophis convictus venomous
- Malayan Pit Viper Calloselasma rhodostoma venomous
- Malcolm's Pitviper Trimeresurus malcolmi venomous
- Mamushi Gloydius blomhoffii venomous
- Manabi Hognose Pitviper Porthidium arcosae venomous
- Many-horned Adder Bitis cornuta venomous
- Mao-lan pitviper Protobothrops maolanensis venomous
- Marajó Lancehead Bothrops marajoensis venomous
- Marbled Lancehead Bothrops marmoratus venomous
- March's Palm Pit Viper Bothriechis marchi venomous
- Martinique Lancehead Bothrops lanceolatus venomous
- Matilda's Horned Viper Atheris matildae venomous
- Mato Grosso Lancehead Bothrops mattogrossensis venomous
- Maya's pit viper Trimeresurus mayaae venomous
- Mayombe Bush-Viper Atheris anisolepis venomous
- McGregor's pitviper Trimeresurus mcgregori venomous
- Meadow Viper Vipera ursinii venomous
- Merendon Palm Pit Viper Bothriechis thalassinus venomous
- Metlapilcoatlus borealis venomous
- Mexican Dusky Rattlesnake Crotalus armstrongi venomous
- Mexican Lancehead Rattlesnake Crotalus polystictus venomous
- Mexican Moccasin Agkistrodon bilineatus venomous
- Mexican Pygmy Rattlesnake Crotalus ravus venomous
- Mexican Smallhead Rattlesnake Crotalus intermedius venomous
- Middle American Rattlesnake Crotalus simus venomous
- Midget Faded Rattlesnake Crotalus concolor venomous
- Moela’s lancehead Bothrops germanoi venomous
- Mongo Hairy Bush Viper Atheris mongoensis venomous
- Moorish Viper Daboia mauritanica venomous
- Mount Bulgar Viper Montivipera bulgardaghica venomous
- Mount Kinabalu Pit Viper Garthius chaseni venomous
- Mount Liupan Pitviper Gloydius liupanensis venomous
- Mount Mabu bush viper Atheris mabuensis venomous
- Mountain Adder Bitis atropos venomous
- Mountain Viper (albizona) Montivipera albizona venomous
- Mountain Viper (monticola) Vipera monticola venomous
- Mt Rungwe Bush Viper Atheris rungweensis venomous
- Mt. Mang Pitviper Protobothrops mangshanensis venomous
- Murici Lancehead Bothrops muriciensis venomous
- Nabang Pitviper Trimeresurus caudornatus venomous
- Namaqua Dwarf Adder Bitis schneideri venomous
- Nepal Pitviper Trimeresurus septentrionalis venomous
- North Philippine Temple Pitviper Tropidolaemus subannulatus venomous
- Northwestern Neotropical Rattlesnake Crotalus culminatus venomous
- Nose-horned Viper Vipera ammodytes venomous
- Nujiang pit viper Gloydius lipipengi venomous
- Okinawa Pitviper Ovophis okinavensis venomous
- Olmecan Pit Viper Metlapilcoatlus olmec venomous
- Oman saw-scaled viper Echis omanensis venomous
- Omkoi Lance-headed Pit Viper Protobothrops kelomohy venomous
- Orlov's Viper Vipera orlovi venomous
- Osborne's Lancehead Bothrops osbornei venomous
- Ottoman Viper Montivipera xanthina venomous
- Painted Lancehead Bothrops diporus venomous
- Palestine Saw-scaled Viper Echis coloratus venomous
- Palestine Viper Daboia palaestinae venomous
- Palm vit viper Craspedocephalus wiroti venomous
- Pampas Lancehead Bothrops pubescens venomous
- Panamint Rattlesnake Crotalus stephensi venomous
- Persian Horned Viper Pseudocerastes persicus venomous
- Philippine pitviper Trimeresurus flavomaculatus venomous
- Phuket Pitviper Trimeresurus phuketensis venomous
- Picado's Pit Viper Atropoides picadoi venomous
- Piraja's Lancehead Bothrops pirajai venomous
- Plain Mountain Adder Bitis inornata venomous
- Pope's Bamboo Pit Viper Trimeresurus popeiorum venomous
- Popeia buniana venomous
- Pygmy Rattlesnake Sistrurus miliarius venomous
- Quang Binh pitviper Trimeresurus truongsonensis venomous
- Queretaran Dusky Rattlesnake Crotalus aquilus venomous
- Rasmussen’s Night Adder Causus rasmusseni venomous
- Razi's Viper Macrovipera razii venomous
- Red Adder Bitis rubida venomous
- Red Diamond Rattlesnake Crotalus ruber venomous
- Rhinoceros Viper (nasicornis) Bitis nasicornis venomous
- Ridge-nosed Rattlesnake Crotalus willardi venomous
- Rock Rattlesnake Crotalus lepidus venomous
- Roman's Carpet Viper Echis romani venomous
- Roman's Saw-scaled Viper Echis leucogaster venomous
- Rowley's Palm Pit Viper Bothriechis rowleyi venomous
- Russell's Viper Daboia russelii venomous
- Sabah Pit Viper Trimeresurus sabahi venomous
- Sahara Sand Viper Cerastes vipera venomous
- Saint Lucia Viper Bothrops caribbaeus venomous
- Sako's Viper Vipera sakoi venomous
- Salazar's Pit Viper Trimeresurus salazar venomous
- San Esteban Island Rattlesnake Crotalus estebanensis venomous
- San Lorenzo Island Rattlesnake Crotalus lorenzoensis venomous
- Sao Paulo Lancehead Bothrops itapetiningae venomous
- Schultze's Pit Viper Trimeresurus schultzei venomous
- Seoane's Viper Vipera seoanei venomous
- Shedao island pitviper Gloydius shedaoensis venomous
- Shore Pit Viper Trimeresurus purpureomaculatus venomous
- Short-tailed Pit Viper Gloydius brevicauda venomous
- Sichuan pitviper Trimeresurus sichuanensis venomous
- Sinaloan Long-tailed Rattlesnake Crotalus stejnegeri venomous
- Slender Hognose Viper Porthidium ophryomegas venomous
- Slender-horned Pitviper Ophryacus undulatus venomous
- Small-eyed Toadhead Bothrocophias microphthalmus venomous
- Snouted Night Adder Causus defilippii venomous
- South Philippine Temple Pitviper Tropidolaemus philippensis venomous
- Southern Adder Bitis armata venomous
- Southern Large-scaled pit viper Craspedocephalus peltopelor venomous
- Southern Pacific Rattlesnake Crotalus helleri venomous
- Southwestern Speckled Rattlesnake Crotalus pyrrhus venomous
- Speckled Forest Pit Viper Bothrops taeniatus venomous
- Speckled Rattlesnake Crotalus mitchellii venomous
- Spider-tailed Viper Pseudocerastes urarachnoides venomous
- Spotted Night Adder Causus maculatus venomous
- Sri Lanka Humpnose Viper Hypnale nepa venomous
- Steppe Viper Vipera renardi venomous
- Strauch's Pitviper Gloydius strauchi venomous
- Sumatra Pit Viper Trimeresurus sumatranus venomous
- Sumatran Palm Pit Viper Craspedocephalus andalasensis venomous
- Szechwan Pit Viper Protobothrops xiangchengensis venomous
- Tai Hairy Bush Viper Atheris hirsuta venomous
- Taiwan Mountain Pitviper Ovophis makazayazaya venomous
- Talamancan Palm-Pitviper Bothriechis nubestris venomous
- Tamaulipan Rock Rattlesnake Crotalus morulus venomous
- Tancitaran Dusky Rattlesnake Crotalus pusillus venomous
- Tancitaro Rattlesnake Crotalus tancitarensis venomous
- Taylor's Cantil Agkistrodon taylori venomous
- Tehuantepec Isthmus Neotropical rattlesnake Crotalus ehecatl venomous
- Three Horned-scaled Pitviper Protobothrops sieversorum venomous
- Tibetan Pit Viper Trimeresurus tibetanus venomous
- Tiger Rattlesnake Crotalus tigris venomous
- Tlaloc's Rattlesnake Crotalus tlaloci venomous
- Toba Pitviper Trimeresurus toba venomous
- Tokara Habu Protobothrops tokarensis venomous
- Tongtianhe pit viper Gloydius rubromaculatus venomous
- Tonkin pitviper Ovophis tonkinensis venomous
- Tortuga Island Rattlesnake Crotalus tortugensis venomous
- Totonacan Rattlesnake Crotalus totonacus venomous
- Transcaucasian Long-nosed Viper Vipera transcaucasiana venomous
- Travancore Pit Viper Craspedocephalus travancoricus venomous
- Trimeresurus andalasensis venomous
- Trimeresurus macrolepis venomous
- Trimeresurus yingjiangensis venomous
- Trungkhanh Pitviper Protobothrops trungkhanhensis venomous
- Tsushima Island Pitviper Gloydius tsushimaensis venomous
- Turkish Viper Vipera barani venomous
- Twin-spotted Rattlesnake Crotalus pricei venomous
- Two-lined Night Adder Causus bilineatus venomous
- Tzotzil Montane Pit Viper Cerrophidion tzotzilorum venomous
- Ujarran Hognose Viper Porthidium volcanicum venomous
- Uracoan Rattlesnake Crotalus vegrandis venomous
- Urutu Bothrops alternatus venomous
- Usambara Eyelash Viper Atheris ceratophora venomous
- Ussuri Mamushi Gloydius ussuriensis venomous
- Uzungwe Mountain Bush Viper Atheris barbouri venomous
- Variable Bush Viper Atheris subocularis venomous
- Venezuela Forest Pit Viper Bothrops medusa venomous
- Venezuela Lancehead Bothrops venezuelensis venomous
- Veracruz Neotropical rattlesnake Crotalus mictlantecuhtli venomous
- Vipera antiqua venomous
- Vipera chloris venomous
- Vipera gedulyi venomous
- Vipera illyrica venomous
- Vipera maghrebiana venomous
- Vipera maxima venomous
- Vipera meotica venomous
- Vipera nasua venomous
- Vipera natiensis venomous
- Vipera platyspondyla venomous
- Vipera sarmatica venomous
- Vipera ukrainica venomous
- Vipera walser venomous
- Vipera weigeli venomous
- Vitória's Lancehead Bothrops otavioi venomous
- Vogel's Pit Viper Trimeresurus vogeli venomous
- Wagler's Pit Viper Tropidolaemus wagleri venomous
- Wagner's Viper Montivipera wagneri venomous
- Western bamboo pit viper Craspedocephalus occidentalis venomous
- Western Dusky Rattlesnake Crotalus triseriatus venomous
- Western Hognose Viper Porthidium hespere venomous
- Western Jumping Pitviper Metlapilcoatlus occiduus venomous
- Western Massasauga Sistrurus tergeminus venomous
- Western Rattlesnake Crotalus oreganus venomous
- White-headed Fea Viper Azemiops kharini venomous
- White-lipped Island Pitviper Trimeresurus insularis venomous
- White-lipped Pitviper Trimeresurus albolabris venomous
- White-tailed Hognose Pitviper Porthidium porrasi venomous
- Whitetail Lancehead Bothrops leucurus venomous
- Wirot's Pit Viper Trimeresurus wiroti venomous
- Yararanata Bothrops ammodytoides venomous
- Yellow-blotched Palm Pit Viper Bothriechis aurifer venomous
- Yucatan Neotropical Rattlesnake Crotalus tzabcan venomous
- Yucatán Hognose Viper Porthidium yucatanicum venomous
- Yunnan Pit Viper Trimeresurus yunnanensis venomous
- Zara Hypnale zara venomous
- Zayuan mountain pitviper Ovophis zayuensis venomous
- Zoige pit viper Gloydius angusticeps venomous