E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Carapace: shield broader than long. Eyestalk relatively short and stout; cornea dilated and ovate. Right cheliped stout, shorter than walking legs; carpus and hand covered with sharp spines which are larger on margins and less dense on ventral surfaces. Left cheliped similar, but slender. 1st and 2nd walking legs stout; merus compressed laterally, with spines and denticulated ridges; carpus and propodus with dorsal margins and serrate and small spines on faces; dactyl longer than merus and twisted with upper margin serrated and ridged and lower margin with close-set corneous spines; claw sharp and stout.

Shield length: male 19.6 mm.

Carapace: shield with areas of white, brown, and shell pink laterally; posterior red, apricot and white. Chelipeds: ischium with brown bands: merus pink, brown and white with an orange band distally and margins and teeth dark brown; carpus light brown, yellow, white and blue areas with dark brown spines; palm pale yellow with dark brown spines medially and red marginally with fingers white or grey-blue with white tips and teeth. 1st and 2nd walking legs have ischium yellow and white; merus opaque white, tan, orange and mahogany with scattered dark brown spots; carpus yellow with dark spines, a narrow mahogany stripe on median posterior face and a white patch distally; propodus white, yellow, orange and a brown area with a mahogany stripe ventrally; dactyl white, orange and violet-blue with dark spines and 2 narrow brown stripes; claw yellow. Green or gold iridescence on surfaces of appendages. Eyestalk with red band at base, and opaque white and brown bands; cornea black. Antennal flagellum pale yellow.