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Van Dyke's Salamander vs. Western Red-backed Salamander

Both live under rocks and moss in the Olympics, the Willapa Hills and the southern Cascades; their records overlap in 15 of Van Dyke's 16 half-degree cells. A: Pale yellow throat in the Van Dyke's Salamander; grey, salt-and-pepper throat and belly, no yellow in the Western Red-backed Salamander. B: A big head with large, bulging eyes in the Van Dyke's Salamander; a smaller head and eyes in the Western Red-backed Salamander. C: A broad yellow, tan or reddish stripe in the Van Dyke's Salamander; an even-edged tan, orange or red stripe on dark sides in the Western Red-backed Salamander. Van Dyke's usually has 14 grooves along the side; counted in hand, not shown. The Western Red-backed has 16.

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Van Dyke's Salamander

Plethodon vandykei

Western Red-backed Salamander

Plethodon vehiculum
Van Dyke's Salamander vs. Western Red-backed Salamander: comparison sheet with the differences marked

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

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