Rathbun, 1932
Carapace surface with sharp tubercles or short spines, but no prominent ones; rostral spines short, about 1/4 postrostral carapace length, with 2 or 4 accessory only at base; interantennular spine bifid from base. (Türkay 1995)
Type locality: Osezaki Light, Nagasaki Prefecture, Japan.
Range: Japan - Osezaki Light (Rathbun, 1932), Inubo-zaki, west of Shiono-misaki and Bungo Strait (Yokoya, 1933), between Hatsushima and Ito and Ajiro (Sakai, 1935), Sagami Bay (Sakai, 1935, 1938, 1965), Sagami Bay, Manazuru and Tosa Bay (Sakai, 1976a), west off Kagoshima Prefecture (Takeda & Miyake, 1969e), Sagami Bay and Goto-retto (Griffin & Tranter, 1986a), Kii Minabe and Tosa Bay (Muraoka, 1998); Philippines - Verde Island Passage (Serène & Vadon, 1981); Sulu Archipelago (Griffin & Tranter, 1986a); Indonesia - Strait of Bougainville and Kepulauan Kai (Griffin & Tranter, 1986a); 50-540m.