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Sierra Garter Snake vs. Two-striped Garter Snake

These two stream garter snakes meet in the southern Sierra Nevada, the Tehachapi Mountains and Kern County; their records touch there. A: A checkerboard of dark blotches, often a faint short stripe on the neck in the Sierra Garter Snake; no middle stripe; olive with two rows of small dark spots in the Two-striped Garter Snake. The Two-striped has a clean yellow stripe low on each side; both live in and beside rocky streams, and where they meet a dark, checkered snake is the Sierra Garter.

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Sierra Garter Snake

Thamnophis couchii

Two-striped Garter Snake

Thamnophis hammondii
Sierra Garter Snake vs. Two-striped 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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