Surface of carapace uneven, finely granular and slightly convex, with sharp teeth on antero-lateral margin, no teeth on postero-lateral margin. Pterygostomian area covered with a dense pubescence which apparently serves to prevent sand from covering the gills when the crab has buried itself for protection from predators. Chelipeds spiny and palm with dorsal margin toothed as is the finger; fingers light coloured. Walking legs broad and flat, last pair with propodus and dactyl particularly so.
SizeCarapace: male 160 x 230 mm, female 120 x 170 mm.
ColourCarapace brownish with pink or tan granules on ridges and ivory in grooved depressions, forming a symmetrical pattern; marginal granules ivory. Chelipeds with violet, dark brown, white and ivory granules on exposed areas and white on unexposed areas; fingers and cutting surfaces white. Walking legs ivory with pale brown, violet and tan streaks. Abdomen ivory. Eyestalk white with violet base; cornea black.