Carapace slightly wider than long; surface spinulose; margins armed with spines which are largest mid-laterally. Branchial areas dilated and separated medially by a deep depression; the rows of spines on each branchial area form a U with the curve at the outer margin and marked by 2 large spines. Hands of mature males with dilated palms. Walking legs compressed and have rows of sharp spines; meri slightly dilated.
SizeCarapace: male 167 x 185 mm, female 119.2 x 114.8 mm.
ColourCarapace scarlet, with some orange, pink and white in immatures. Chelipeds orange with scarlet spines; finger tips light pink with white cutting teeth. Walking legs scarlet with yellow-brown claws. Abdomen light orange or brownish. Antennules, antennae and eyestalks scarlet; cornea chocolate brown.