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The northwestern garter snake (Thamnophis ordinoides) is a species of colubrid garter snake that lives in Oregon, Washington, California, and British Columbia. The garter snake is small, with adults averaging around 14-21 inches long.
The first garter snake to be scientifically described was the eastern garter snake (now Thamnophis sirtalis sirtalis), by zoologist and taxonomist Carl Linnaeus in 1758. The genus Thamnophis was described by Leopold Fitzinger in 1843 as the genus for the garter snakes and ribbon snakes. [ 2 ]
Oregon garter snake (T. a. hydrophilus), in OregonThe aquatic garter snake grows up to 18–40 inches (46–102 cm) long. Its dorsal coloration varies greatly. The different coloration patterns are: pale gray with alternating rows of darker blotches on the sides, dark brown with borders that are less distinct, or nearly all black.
The common garter snake (Thamnophis sirtalis) is a species of snake in the subfamily Natricinae of the family Colubridae. The species is indigenous to North America and found widely across the continent.
The northwestern garter snake is small, with adults averaging around 13–38 in (33–97 cm) in total length (including tail). [2] It is one of the most variable species of snakes in the world. [citation needed]
Northwestern garter snake, (Thamnophis ordinoides), is a species of colubrid snake endemic to North America. In the United States it is found in Oregon, Washington, and California; in Canada it is found in British Columbia. It is the most common snake in the park. The northwestern garter snake is small, with adults averaging around 36–53 cm ...
A rough-skinned newt underwater A rough-skinned newt at Brice Creek in Oregon. Throughout much of the newt's range, the common garter snake (Thamnophis sirtalis) has been observed to exhibit resistance to the tetrodotoxin produced in the newt's skin. While in principle the toxin binds to a tube-shaped protein that acts as a sodium channel in ...
It is an immensely variable species, and even the most experienced herpetologists have trouble with its identification. They are medium-sized snakes, usually 46–104 cm (18–41 in). Like many species of North American garter snake, the western terrestrial garter snake