Medium-sized marine crustacean, with a maximum carapace size of 115 mm. Body crab-shaped. Carapace spiny, strongly calcified; rostrum spine-like; first legs with pincers (chelipeds); right cheliped generally stronger developed than left cheliped; legs 2, 3 and 4 well developed, fifth reduced. Abdomen asymmetrical. Sternite located between first pair of walking legs without deep, longitudinal medial groove.
- Area 41: the Southwestern part of the Atlantic Ocean
- Area 87: the Southeastern part of the Pacific Ocean
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