Hypsiglena
The genus Hypsiglena (family Colubridae) has 9 species in SnakeList - 0 venomous and 9 non-venomous.
- Baja California Night Snake Hypsiglena slevini
- Chihuahuan Nightsnake Hypsiglena jani
- Coast Nightsnake Hypsiglena ochrorhynchus
- Desert Nightsnake Hypsiglena chlorophaea
- Isla Santa Catalina Nightsnake Hypsiglena catalinae
- Islas Revillagigedo Nightsnake Hypsiglena unaocularus
- Night Snake Hypsiglena torquata
- Rio Grande de Santiago Nightsnake Hypsiglena affinis
- Rio Verde Nightsnake Hypsiglena tanzeri