USGS Western Ecological Research Center

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A Field Guide to the Reptiles and Amphibians of Coastal Southern California

Photos by Chris Brown

Scientific name: Pseudacris cadaverina

Common name: California Treefrog

Size: 1.14-2.0 in (2.9-5.0 cm)

Distinguishing characters: A cryptically colored species, often resembling granitic stones; grey or light brown on dorsum with darker blotches; whitish venter; yellow on undersides of legs, groin and lower abdomen; conspicuous toe webbing and pads; dorsal skin roughened-warty.

Juveniles: Similar to adults.

Dimorphism: Male has dusky-yellow throat.

Similar species: Pseudacris hypochondriaca: Has prominent dark eyestripe; smoother skin; smaller toe webbing and pads.

Additional notes: A species most likely to occur along streams with abundant boulders and cobbles in channel. Distribution spotty and localized. Easily handled.

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