Snake myths, practical clues, and safer decisions.

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Published snake guide

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177 published

Chihuahuan Nightsnake

Hypsiglena jani

No medically significant venom known

Hypsiglena jani, commonly called the Chihuahuan nightsnake, is a small, nocturnal colubrid found in arid and semi-arid habitats of the southwestern United States, northern Mexico, and parts of southern California. It is rear-fanged with mild venom used to subdue small prey; venom is not known to be medically significant to humans, but bites can cause localized irritation. Primarily terrestrial and secretive, it favors rocky areas, scrub, and grassland and is most active at night and during cooler periods.

Coast Mountain Kingsnake

Lampropeltis multifasciata

No medically significant venom known

Lampropeltis multifasciata (Coast Mountain kingsnake) is a nonvenomous colubrid snake native to parts of the southwestern United States and northern Mexico/adjacent regions. Secretive and primarily nocturnal in hot months, it feeds on small vertebrates and other snakes. Homeowners may encounter it in natural or semi-rural settings; it is not considered a threat to people but should not be handled. Remove attractants and seal access to buildings to reduce encounters.

Coast Nightsnake

Hypsiglena ochrorhyncha

Potentially venomous

A small, nocturnal colubrid found along the western North American coast; mildly rear-fanged with weak venom not considered dangerous to humans. Often inhabits rocky, arid, shrub and riparian edges and preys mainly on lizards, amphibians, and small reptiles.