Aquatic Garter Snake vs. Common Garter Snake

Both are garters of southwestern Oregon streams. A: A checkerboard of dark spots; dull, narrow stripes in the Aquatic Garter Snake; crisp, bright pale stripes in the Common Garter Snake. B: No red; grey or olive in the Aquatic Garter Snake; red bars between the black spots in the Common Garter Snake. In hand: Aquatic usually 8 upper lip scales and 19 scale rows; Common 7 and 19.

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