Exiled Garter Snake

Thamnophis exsul Rossman, 1969

Alternate NameMontane Garter Snake
Spanish NameCulebra de Agua Nómada de MontaƱa
SubspeciesNone
Max. Recorded Length46.3 cm; 18.2 inches

Range

Mexico: Coahuila, Nuevo León.

Description

The Exiled Garter Snake is both the smallest garter snake known (the largest specimen found was only 18 inches long) and the rarest (10 collected specimens from just three localities in northeastern Mexico). It has been found in montane meadows at high elevations.

Like North American rat snakes, the Exiled Garter Snake exhibits ontogenetic change: juveniles start out spotted; in adults the spotting becomes obscured.

Captive Care

For general information on keeping garter snakes in captivity, please go to the Care section.

Sources

Rossman, D. A., N. B. Ford and R. A. Seigel. 1996. The Garter Snakes: Evolution and Ecology. Norman OK: University of Oklahoma Press.