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Home > Snakes > San Francisco Garter Snake

San Francisco Garter Snake

A vibrantly colorful supspecies of the Common Garter, the San Francisco Garter Snake is found in in limited parts of the USA. With some researchers claiming that there are only 1000-2000 individuals left, the ESA has declared it to be an endangered species.



    Kingdom Animalia
    Phylum Chordata
    Subphylum Vertebrata
    Class Reptilia
    Order Squamata
    Suborder Serpentes
    Family Colubridae
    Subfamily Natricinae
    Genus Thamnophis
    Species Thamnophis sirtalis
    Scientific Name Thamnophis sirtalis tetrataenia


    Length Up to 6 ft 11 in
    Color Bright yellow arrow-head markings on black base
    Distribution San Mateo County and the extreme northern part of California’s coastal Santa Cruz County
    Habitat Mostly in densely vegetated ponds near hillsides where they can find enough sun and prey in surrounding rodent burrows
    Diet Different species of frogs and rodents
    Venom Fact Nonvenomous
    Breeding Season Summer
    Mode of Reproduction Oviparous (egg laying)

    San Francisco Garter Snake Pictures Gallery

    Published on December 30th 2016 by under Snakes. Article was last reviewed on 2nd August 2018.

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