Carapace with granular surface, setose and uneven; antero-lateral margin cut into pointed teeth and postero-lateral with one tooth; margins meet at a distinct angle. Chelipeds setose covering rows of sharp spines; finger tips dark coloured. Walking legs setose; dactyl long and slender.
Carapace: male 49 x 58 mm, female 35 x 52 mm.
Considerable variation. Carapace yellow, tan, dark red, violet, grey, black and opaque white with varying combinations and symmetrical patterns. Chelipeds white and tan with red bands; palm yellowish and orange with violet spines; fingers white and brown with distal half black. Walking leg: meri white with two orange bands; the rest mostly red and lighter areas; claws yellow. Ventrally white.
Mud, sand, gravel or shell bottoms.
Granite Cove, Port Althorp, Alaska, to Santa Catalina Islands, California; intertidal to 179 m.
Distribution In British Columbia
Common on outer coasts subtidally.
Rathbun (1926) found C. gibbosulus from Japan to be distinct from those of North America, which are C. branneri.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC:
Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab
for Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2022-12-04 11:53:39 PM]
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