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Two-striped Garter Snake vs. Western Terrestrial Garter Snake

Both live along streams in the Coast Ranges and southern California mountains. A: No stripe down the middle of the back in the Two-striped Garter Snake; a pale stripe down the middle of the back, often wavy in the Western Terrestrial Garter Snake. Some coastal Two-striped Garters are plain dark with no stripes at all.

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Two-striped Garter Snake

Thamnophis hammondii

Western Terrestrial Garter Snake

Thamnophis elegans
Two-striped Garter Snake vs. Western Terrestrial Garter Snake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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