Family Boidae

Rosy Boa (Lichanura trivirgata)


Family Colubridae


Glossy Snake (Arizona elegans)

Variable Sandsnake (Chilomeniscus stramineus)

Western Shovel-nosed Snake (Chionactis annulata)

Sonoran Shovel-nosed Snake (Chionactis palarostris)

Striped Whipsnake (Coluber taeniatus)

California Kingsnake (Lampropeltis californiae)

Chihuahuan Black-headed Snake (Tantilla wilcoxi)

Chihuahuan Hook-nosed Snake (Gyalopion canum)

Thornscrub Hook-nosed Snake (Gyalopion quadrangulare)

Western Milksnake (Lampropeltis gentilis)

Knobloch’s Mountain Kingsnake (Lampropeltis knoblochi)

Pyro Mountain Kingsnake (Lampropeltis pyromelana)

Desert Kingsnake (Lampropeltis splendida)

Sonoran Whipsnake (Masticophis bilineatus)

Coachwhip (Masticophis flagellum)

Neotropical Whipsnake (Masticophis mentovarius)

Neotropical Vinesnake (Oxybelis aeneus)

Gophersnake (Pituophis catenifer)

Saddled Leaf-nosed Snake (Phyllorhynchus browni)

Spotted Leaf-nosed Snake (Phyllorhynchus decurtatus)

Long-nosed Snake (Rhinocheilus lecontei)

Eastern Patch-nosed Snake (Salvadora grahamiae)

Western Patch-nosed Snake (Salvadora hexalepis)

Green Ratsnake (Senticolis triaspis)

Western Groundsnake (Sonora semiannulata)

Plains Black-headed Snake (Tantilla nigriceps)

Smith’s Black-headed Snake (Tantilla hobartsmithi)

Sonoran Lyresnake (Trimorphodon lambda)

Yaqui Black-headed Snake (Tantilla yaquia)


Family Dipsadidae


Ring-necked Snake (Diadophis punctatus)

Mexican Hog-nosed Snake (Heterodon kennerlyi)

Desert Nightsnake (Hypsiglena chlorophaea)

Chihuahuan Nightsnake (Hypsiglena jani)



Family Elapidae


Sonoran Coralsnake (Micruroides euryxanthus)


Family Leptotyphlopidae

New Mexico Threadsnake (Rena dissectus)

Western Threadsnake (Rena humilis)


Family Typhlopidae

Brahminy Blindsnake (Indotyphlops braminus)


Family Natricidae

Black-necked Gartersnake (Thamnophis cyrtopsis)

Mexican Gartersnake (Thamnophis eques)

Terrestrial Gartersnake (Thamnophis elegans)

Checkered Gartersnake (Thamnophis marcianus)


Family Viperidae

Western Diamond-backed Rattlesnake (Crotalus atrox)

Sidewinder (Crotalus cerastes)

Arizona Black Rattlesnake (Crotalus cerberus)

Rock Rattlesnake (Crotalus lepidus)

Black-tailed Rattlesnake (Crotalus molossus)

Twin-spotted Rattlesnake (Crotalus pricei)

Southwestern Speckled Rattlesnake (Crotalus pyrrhus)

Mohave Rattlesnake (Crotalus scutulatus)

Tiger Rattlesnake (Crotalus tigris)

Ridge-nosed Rattlesnake (Crotalus willardi)

Western Massasauga (Sistrurus tergeminus)