Range Maps for California Gartersnakes

California Gartersnakes ID

Key to California Gartersnakes



Two-striped Gartersnake Thamnophis hammondii	Sierra Gartersnake Thamnophis couchii	Giant Gartersnake Thamnophis gigas

Northwestern Gartersnake Thamnophis ordinoides	Marcy's Checkered Gartersnake Thamnophis marcianus marcianus
References Rossman, Douglas A., Neil B, Ford, & Richard A. Siegel. The Garter Snakes - Evolution and Ecology. University of Oklahoma press, 1996. Stebbins, Robert C. A Field Guide to Western Reptiles and Amphibians. 3rd Edition. Houghton Mifflin Company, 2003. Boundy, Jeff. Systematics of the Garter Snake Thamnophis atratus at the Southern End of Its Range. Proceedings of the California Academy of Sciences Volume 51, No. 6, pp. 311-336. 1999.