List of snakes of Wyoming

This is a list of snakes found in Wyoming, United States.[1] Snake species in Wyoming are primarily managed by the statewide herpetological coordinator of the Wyoming Game and Fish Department.[2]

The Species of Greatest Conservation Need, or SGCN, is a designation from the Wyoming Game and Fish that is "intended to identify species whose conservation status warrants increased management attention, and funding, as well as consideration in conservation, land use, and development planning in Wyoming."[3]

Snakes

Scientific Name Common Name(s) Image Venomous SGCN Notes Ref.
Pituophis catenifer sayi Bullsnake A photograph of a bullsnake No No [1]
Coluber taeniatus taeniatus Desert Striped Whipsnake A photograph of a whipsnake No[4] Yes The range in Wyoming is extremely small, only residing near the southern area of Flaming Gorge.[5] [1]
Coluber constrictor flaviventris Eastern Yellow Bellied Racer An eastern yellow belled racer with a gray top and yellow belly No No [1]
Pituophis catenifer deserticola Great Basin Gophersnake A great basin gophersnake No Yes [1]
Crotalus oreganus concolor Midget Faded Rattlesnake
A rattlesnake sunbathing beneath 2 rocks
 Yes[6] Yes [1]
Charina bottae Northern Rubber Boa a rubber boa on a blue towel No Yes [1]
Tantilla nigriceps Plains Black-headed Snake a plains black-headed snake, with a copper body and a black head Yes Yes While the snakes are venomous, they are considered harmless to humans.[7] [1]
Thamnophis radix Plains Gartersnake A black and yellow gartersnake Yes Yes [1]
Heterodon nasicus Plains Hog-nosed Snake A light brown hognose snake with brown spotted patterning No Yes [1]
Crotalus viridis Prairie Rattlesnake A brown rattlesnake with brown spotted patterning Yes[6] Yes [1]
Storeria occipitomaculata Red-belled Snake A reddish brown snake with a black head and a white collar No Yes [1]
Thamnophis sirtalis parietalis Red-sided Gartersnake a gartersnake with red and white horizontal striping Yes Yes [1]
Opheodrys vernalis Smooth Green Snake A green snake No Yes [1]
Thamnophis sirtalis fitchi Valley Gartersnake A gartersnake with horizontal white stripes Yes Yes [1]
Thamnophis elegans vagrans Wandering Gartersnake A juvenile gartersnake with brown and light striping Yes No The Wandering Gartersnake is mildly venomous, but the venom is generally negligible to humans.[8] [1]
Lampropeltis gentilis Western Milksnake a western milksnake with red, black, and yellow banding No Yes [1]

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Wyoming Game & Fish (January 23, 2023). "Reptiles of Wyoming". Wyoming Game & Fish Department. Archived from the original on March 11, 2025. Retrieved March 25, 2026.
  2. ↑ Wyoming Game & Fish Department. "Amphibians and Reptiles". Wyoming Game & Fish Department. Archived from the original on March 8, 2026.
  3. ↑ Wyoming Game and Fish Department (2017). "Wyoming State Wildlife Action Plan". Wyoming Game and Fish Department. Archived from the original on August 8, 2025. Retrieved May 19, 2026.
  4. ↑ Hammerson, Geoffrey A. (November 1, 1999). Amphibians and Reptiles in Colorado: A Colorado Field Guide (2nd ed.). University Press of Colorado and Colorado Division of Wildlife. p. 484. ISBN 0870815342.
  5. ↑ Wyoming Game and Fish Department (2017). "Desert Striped Whipsnake - Coluber taeniatus taeniatus". Wyoming Game & Fish Department. Archived from the original on June 15, 2024. Retrieved May 9, 2026.
  6. 1 2 Lee, Manuel (September 2022). Barnyards & Backyards. Vol. Fall 2022. Wyoming: University of Wyoming. pp. 14–16.{{cite book}}: CS1 maint: date and year (link)
  7. ↑ Colorado Parks & Wildlife (May 9, 2026). "Plains Black-Headed Snake". Colorado Parks & Wildlife. Archived from the original on Jan 15, 2025. Retrieved May 9, 2026.
  8. ↑ Gomez, Hernan F; Davis, Mark; Phillips, Scott; McKinney, Patrick; Brent, Jeffrey (May 1994). "Human envenomation from a wandering garter snake". Annals of Emergency Medicine. 23 (5): 1119–1122 – via Science Direct.
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