Pacific Northwest
Reptiles & Amphibians

Red-spotted Gartersnake - Thamnophis sirtalis concinnus

(Hallowell, 1852)

Click on a picture for a larger view.

Green = range of T. s. concinnus
Click map to enlarge and see key to other subspecies


	Sub-adult, Benton County, Oregon

Sub-adult, Benton County, Oregon	Adult, Benton County, Oregon

Adult, Benton County, Oregon	Adult, Benton County, Oregon

The snakes below from the eastern part of the range of T. s. concinnus do not have the solid red head and have reduced red blotches on the sides, showing influences from the adjacent Valley Gartersnake subspecies, T. s. fitchi.

	Adult, Multnomah County, Oregon

	Adult, Multnomah County, Oregon

Adult, Multnomah County, Oregon	Adult, Multnomah County, Oregon

	Looking at the top of the heads can help to identify these sympatric species: T. sirtalis - Common Gartersnake (Left) has a larger longer head with bigger eyes than T. ordinoides - Northwestern Gartersnake (Right.) © Filip Tkaczyk

Habitat

Habitat, Multnomah County, Oregon	Habitat, Benton County, Oregon	Habitat, Benton County, Oregon

Habitat, Multnomah County, Oregon	Habitat, Multnomah County, Oregon

Short Video

	These are all shots of the same Red-spotted Gartersnake I spotted at the edge of a pond. It swam away when I approached it, but I snuck up on it and grabbed it, took a few shots of it on the ground, then let it swim away.