Northwestern garter snake

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Northwestern garter snake
Thamnophis ordinoides 071616 A.jpg
Thamnophis ordinoides
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Subfamily: Natricinae
Genus: Thamnophis
Species: T. ordinoides
Binomial name
Thamnophis ordinoides
(Baird & Girard, 1852)
  • Tropidonotus ordinoides
    Baird & Girard, 1852
  • Eutaenia ordinoides
    – Baird & Girard, 1853
  • Thamnophis ordinoides Fitch, 1940[1]

The northwestern garter snake (Thamnophis ordinoides) is a species of colubrid snake endemic to North America.

Geographic range[edit]

In the United States it is found in Oregon, Washington, and California; in Canada it is found in British Columbia.


The northwestern garter snake is small, with adults averaging around 36–53 cm (14–21 in) in total length. It is one of the most variable species of snakes in the world.


Thamnophis ordinoides is most commonly found on the edge of meadows, surrounded by forest, as some sunshine is needed for their survival. They can also be found under stumps when it is too hot out.


  1. ^ The Reptile Database.

Further reading[edit]

  • Baird, S.F. & C.F. Girard. 1852. Descriptions of new species of Reptiles, collected by the U. S. Exploring Expedition under the command of Capt. Charles Wilkes, U. S. N. Proc. Acad. Nat. Sci. Philadelphia 6: 174–177. (Tropidonotus ordinoides, p. 176.)

External links[edit]