Rathbun, 1932
Carapace pubescent and on branchial regions finely frosted. Front almost vertically deflexed, edge visible in dorsal view. Eyestalks strongly constricted next the cornea. Basal article of antennule very large and prominent. Antero-external angle of merus of maxilliped rounded and produced outward. Merus of cheliped with four conical spines on lower margin, a subterminal spine on inner margin, a tubercle at end of inner surface; wrist broad, a long, acuminate, inner spine; hand high, thick, with short upper margin and prominent proximal angles on both outer and inner surfaces so that there is a pronounced lower surface; major dactylus strongly arched. Abdomen with segments three to five fused, angles of three blunt, sides of six parallel except at rounded distal angles. Length of carapace 13.6, width 17.2 mm. -- Rathbun. (T. Sakai, 1939: 575)
Type locality: Jogashima Light, Sagami Bay, Japan.
Range: Japan - Sagami Bay (Rathbun, 1932, Sakai, 1976a).