San Francisco Gartersnake
Thamnophis sirtalis tetrataenia


DISTRIBUTION: In our region, Thamnophis s. tetrataenia occurs only in California, on the San Francisco peninsula from southern San Francisco County to Santa Cruz County.

LEGAL STATUS:  is listed as an Endangered Species under both the U.S. Endangered Species Act (ESA) and the California Endangered Species Act (CESA).

Photo Credit Information