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.