Order: Squamata - Snakes

FAMILY: ​colubridae

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Photo: Rémi Pattyn
Eastern Yellow-bellied Racer
​(Coluber constrictor flaviventris)
Western Yellow-bellied Racer
​(Coluber constrictor mormon)
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Photo: Hunter Johnson
​Wandering Gartersnake
​(Thamnophis elegans vagrans)
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Photo: Rémi Pattyn
Plains Gartersnake
(​​Thamnophis radix)
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Photo: Hunter Johnson
Red-sided Gartersnake
​(Thamnophis sirtalis parietalis)
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Photo: Rémi Pattyn
Western Black-necked Gartersnake
​(Thamnophis cyrtopsis cyrtopsis)
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Photo: Rémi Pattyn
Bullsnake
​(​Pituophis catenifer sayi)
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Photo: Rémi Pattyn
Great Basin Gophersnake
​(Pituophis catenifer deserticola)
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Photo: Rémi Pattyn
Northern Watersnake
(Nerodia sipedon sipedon)
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Photo: Danny Martin
Plains Hog-nosed Snake
​(​​Heterodon nasicus)
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Photo: Danny Martin
Eastern Hog-nosed Snake
​(Heterodon platirhinos)
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Photo: Aaron Balogh
Western Coachwhip
​(​Masticophis flagellum testaceus)
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Photo: Rémi Pattyn
Desert Striped Whipsnake
​(Masticophis taeniatus taeniatus)
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Photo: Aaron Balogh
Great Plains Ratsnake
​(​Pantherophis emoryi)
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Photo: Rémi Pattyn
Kansas Glossy Snake
​(Arizona elegans elegans)
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Photo: Rémi Pattyn
Painted Desert Glossy Snake
(Arizona elegans philipi)
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Photo: Rémi Pattyn
Long-nosed Snake
​(Rhinocheilus lecontei)
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Photo: Kevin Young
Western Milksnake
​(Lampropeltis gentilis)
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Photo: Tim Warfel
​Speckled Kingsnake
​(Lampropeltis holbrooki)
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Photo: Rémi Pattyn
California Kingsnake
(​Lampropeltis californiae)
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Photo: Rémi Pattyn
Smooth Greensnake
​(Opheodrys vernalis)
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Photo: Aaron Balogh
​Prairie Ring-necked Snake
​(Diadophis punctatus arnyi)
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Photo: Rémi Pattyn
Variable Groundsnake
​(Sonora semiannulata semiannulata)
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Photo: Hunter Johnson
​Lined Snake
​(​Tropidoclonion lineatum)
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Photo: Kevin Urbanek
Chihuahuan Nightsnake
​(​Hypsiglena jani)
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Photo: Tim Warfel
Mesa Verde Nightsnake
​(Hypsiglena chlorophaea loreala)
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Photo: Hunter Johnson
Plains Black-headed Snake
​(Tantilla nigriceps)
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Photo: Kevin Urbanek
Smith's Black-headed Snake
​(Tantilla hobartsmithi)

FAMILY: ​viperidae

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Photo: Rémi Pattyn
Prairie Rattlesnake
​(Crotalus viridis)
Venomous
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Photo: Graham Zephirin
Midget Faded Rattlesnake
​(Crotalus oreganus concolor)
Venomous
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Photo: Rémi Pattyn
Western Massasauga
​(Sistrurus tergeminus)
​Venomous

FAMILY: ​LEPTOTYPHLOPIDAE

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Photo: Andrew Dubois
New Mexico Threadsnake
​(Rena dissecta)

EXTIRPATED

FAMILY: ​COLUBRIDAE 

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Photo: Danny Martin
Arid Land Ribbonsnake
(Thamnophis proximus diabolicus)
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Visit our parent organization, Partners in Amphibian and Reptile Conservation (PARC), for more information on national conservation efforts and other  regional groups. This website and any products posted herein are  officially recognized by the national entity, Partners in Amphibian and  Reptile Conservation (PARC), as the efforts of an approved PARC chapter.