Rathbun, 1932
Rostrum longer than 0.5 postrostral carapace length, spines strongly divergent; hepatic and branchial spines very long and slender; cardiac process bifid. (Davie 1996)
Type locality: Sata-misaki Light, Kagoshima, Japan.
Range: Japan - Sata-misaki, Kagoshima (Rathbun, 1932), Sagami Bay (Yokoya, 1933), coast of Wakayama (Sakai, 1938a), Sagami Bay and Kii Peninsula (Sakai, 1976a); 100-190 m.