Carapace compressed, with strong dorsal median carina; four longitudinal carinae on lateral surface; median two of them originated from antennal and branchiostegal spines occupy whole length of carapace, weakly convex, and posteriorly approaching to each other; upper ridge placed at posterior half of carapace, being slightly upper to central part of carapace; lower one on margin of carapace. Rostrum as long as carapace, gently curving upward, 13-19 teeth on upper margin (5 or 6 on dorsal carina of carapace) and 8-13 on lower margin. Left second pereiopod much longer than the right; left carpus subdivided into 19 or 20 segments and the right into 8. Telson with five pairs of spinules on dorsal surface and with two pairs on distal margin.
Distribution:
Previously known from the West Atlantic from North Carolina to the Caribbean Sea, the East Atlantic from Spain to Congo, and the Indo-West Pacific, 145-885 m deep.