Coastal Tailed Frog vs. Foothill Yellow-legged Frog

Both sit on rocks in cold, rocky streams of the north coast; their records overlap. A: Vertical pupil, no eardrum in the Coastal Tailed Frog; horizontal pupil, a small eardrum behind the eye in the Foothill Yellow-legged Frog. B: Dark with many small pale-tipped bumps in the Coastal Tailed Frog; grey or brown, pebbly, often a pale triangle on the snout in the Foothill Yellow-legged Frog. Males of the tailed frog have a short 'tail' (a mating organ); the Foothill has yellow under the legs.

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

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