Order: Squamata - Snakes
Colorado Snake Species
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Scientific Name
Arizona elegans
Crotalus viridis Diadophis punctatus arnyi Heterodon nasicus Heterodon platirhinos Hypsiglena chlorophaea loreala Hypsiglena jani Lampropeltis californiae Lampropeltis gentilis Lampropeltis holbrooki Masticophis flagellum testaceus Masticophis taeniatus taeniatus Nerodia sipedon sipedon Opheodrys vernalis Pantherophis emoryi Pituophis catenifer
Rhinocheilus lecontei Sistrurus tergeminus Sonora semiannulata semiannulata Tantilla hobartsmithi Tantilla nigriceps Thamnophis cyrtopsis cyrtopsis Thamnophis elegans vagrans Thamnophis radix Thamnophis sirtalis parietalis Tropidoclonion lineatum |
Common Name
Glossy Snake
Prairie Rattlesnake Prairie Ring-necked Snake Plains Hog-nosed Snake Eastern Hog-nosed Snake Mesa Verde Nightsnake Chihuahuan Nightsnake California Kingsnake Western Milksnake Speckled Kingsnake Western Coachwhip Desert Striped Whipsnake Northern Watersnake Smooth Greensnake Great Plains Ratsnake Gophersnake
Long-nosed Snake Western Massasauga Variable Groundsnake Smith's Black-headed Snake Plains Black-headed Snake Western Black-necked Gartersnake Wandering Gartersnake Plains Gartersnake Red-sided Gartersnake Lined Snake |
Species of Possible Occurrence
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Scientific Name
Thamnophis proximus Charina bottae Thamnophis marcianus Storeria dekayi |
Common Name
Western Ribbonsnake Northern Rubber Boa Checkered Gartersnake Dekay's Brown Snake |
Family: Colubridae
Genus: Coluber - North American Racers, Coachwhips, & Whipsnakes
North American Racer
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Genus: Heterodon - North American Hog-nosed Snakes
Plains Hog-nosed Snake
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Eastern Hog-nosed Snake
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Genus: Pantherophis - North American RatsnakesGreat Plains Ratsnake
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Photo: Aaron Balogh
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Genus: Thamnophis - Gartersnakes
Terrestrial Gartersnake
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Common Gartersnake
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Western Ribbonsnake
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Black-necked Gartersnake
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Plains Gartersnake
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Genus: Tropidoclonion - Lined SnakesLined Snake
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Genus: Nerodia - North American WatersnakesCommon Watersnake
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Genus: Arizona - Glossy SnakeGlossy Snake
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Glossy Snake on road. Photo: Kevin Urbanek.
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Genus: Rhinocheilus - Long-nosed SnakesLong-nosed Snake
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Photo: Tim Warfel.
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Genus: Opheodrys - GreensnakesSmooth Greensnake
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Photo: Tim Warfel.
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Genus: Diadophis - Ring-necked SnakesRing-necked Snake
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Photo: Aaron Balogh
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Genus: Tantilla - Black-headed, Crowned, & Flat-headed Snakes
Plains Black-headed Snake
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Smith's Black-headed Snake
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Genus: Pituophis - Bullsnakes, Pinesnakes & Gophersnakes
Gophersnake (Bullsnake)
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Genus: Lampropeltis - Kingsnakes
Speckled Kingsnake
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California Kingsnake
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Milksnake
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Genus: Hypsiglena - North American Nightsnakes
Desert Nightsnake
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Chihuahuan Nightsnake
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Family: Leptotyphlopidae
Family: Viperidae
Genus: Crotalus - Rattlesnakes
Prairie Rattlesnake *Venomous
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Western Rattlesnake
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Genus: Sistrurus - Ground RattlesnakesMassasauga
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Family: Boidae
Genus: Charina - Rubber Boas
Rubber Boa *Possible occurrence in Colorado
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Photo: Hunter Johnson
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