Two-striped garter snake

Two-striped garter snake
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Thamnophis
Species: T. hammondii
Binomial name
Thamnophis hammondii
(Kennicott, 1860)
Two-striped garter snake in Riverside County, California

The two-striped garter snake (Thamnophis hammondii) is a species of aquatic garter snake that lives in western North America.

Taxonomy and etymology

The specific name, hammondii, is in honor of William A. Hammond, the U.S. Army surgeon, who collected the first specimens.[2]

Description

T. hammondii is a medium-sized snake, 18-30 inches long, with a head barely wider than the neck. Two common color variations occur in the wild, a striped variant and a checkered variant. The striped variant has a yellowish lateral stripe on each side, and a fairly uniform dorsal coloring. The checkered variant lacks the lateral stripes and has two rows of small dark spots on each side.[3]

Range, habitat, and diet

The two-striped garter snake is found in western North America, ranging from central California to Baja California, Mexico. They are a highly aquatic species, and prefer habitat adjacent to permanent or semi-permanent bodies of water. This species feeds primarily on fish and amphibians.[4]

References

  1. D. R. Frost; G. A. Hammerson & B. Hollingsworth (2007). "Thamnophis hammondii". IUCN Red List of Threatened Species. Version 2009.2. International Union for Conservation of Nature. Retrieved February 9, 2010.
  2. Hammond and Xantus de Vesey were not the only "surgeons-ornithologists": Hume, Edgar Erskine. Ornithologists of the United States Army Medical Corps: Thirty-six biographies. Baltimore: The Johns Hopkins Press. 1942. 583 p.
  3. "Two-striped Gartersnake - Thamnophis hammondii". www.californiaherps.com. Retrieved 2015-08-29.
  4. Kucera, T. "Thamnophis Hammondii". California Department of Fish and Wildlife. Retrieved 24 August 2015.

Further reading


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