Seanet High Intertidal

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Petrolisthes cinctipes (Randall, 1840)
Phylum Arthropoda, Subph. Crustacea, Class Malacostraca, Subcl. Eumalacostraca, Superorder Eucarida, Order Decapoda, Infraorder Anomura, Family Porcellanidae

Porcelain crab; 3 pr. walking legs with 1 pr. broad flat claws; carapace square, antennae dk. red; carapace to 24 mm, lacks hairs; color light brown to dk. brown; mouth parts bright red; red-orange spot at base of dactyl on claws; readily autotomizes appendages when disturbed.

Abundant under rocks, high to mid-intertidal zones; protected outer coast. Suspension feeder.

Geo Range: British Columbia to Santa Barbara, Calif.
Synonyms:
Similar species: Petrolisthes eriomerus & P. manimaculus have more slender claws & occur lower on the shore

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