Miers, 1886
Rostrum of two spines distinct from close to base; preorbital angle of eave not produced; carapace with plates which are usually large and dominate the surface, a plate on the hepatic margin; branchial region with only one large plate which extends laterally over epibranchial region; meri of ambulatory legs carinate. (Davie 1996)
Type locality: Kepulauan Kai, Indonesia, 5°49'15"S, 132°14'15"E, "Challenger" stn 192, 260 m.
Range: Sri Lanka - Colombo (Alcock, 1899c); Japan - (Balss, 1924b), Sagami Bay (Ortmann, 1893a), Tosa Bay (Sakai, 1938a), Sagami Bay, Mikawa Bay, Kii Minabe and Tosa Bay (Sakai, 1976a), Kii Minabe (Miyake, 1983), Tosa Bay and Tsuyazaki (Muraoka, 1998); Korea (Sakai, 1934a, 1938, Kamita, 1941b, Kim, 1973, Muraoka, 1998); Philippines - (Miers, 1886), north Mindanao, between Negros and Siquijor, between Cebu and Leyte, and Leyte (Griffin, 1976), Verde Island Passage (Guinot & Richer de Forges, 1986a), Tucaran, Mindanao (Griffin & Tranter, 1986a); Indonesia - Kepulauan Kai (Miers, 1886, Griffin & Tranter, 1986a), Gillolo Island (Griffin, 1976), Kepulauan Kai and Tanimbar (Richer de Forges, 1995); Australia - off Raine Island, Queensland (Griffin & Tranter, 1986a); 85-600 m.