Rathbun, 1916
Carapace surface densely and coarsely granular; protogastric spines of extreme length, greatly overreaching all other spines and generally produced forward or obliquely forward beyond margin of carapace; posterior mesogastric spine with a flanking spine or tubercle; supraorbital eave unarmed; rostral spines about of same length as interantennular one; pterygostomial region smooth and flat and the ridge on the lateral margin consists of two or three irregular rows of spines and tubercles. Antennal peduncle cylindrical, basal joint with three strong spines. (Türkay 1995)
Type locality: Apo Island, between Negros and Siquijor, Philippines, 9°08'15"N, 123°23'20"E, "Albatross" stn 5538, 260 m.
Range: Japan - off Omae-zaki (Yokoya, 1933), Tosa Bay (Sakai, 1976a), Kyushu-Palau Ridge (Takeda, 1980b); South China Sea (Griffin & Tranter, 1986a, Davie & Short, 1989); Philippines - Apo Island (Rathbun, 1916, Griffin, 1976, Guinot & Richer de Forges, 1982b), Verde Island Passage (Guinot & Richer de Forges, 1986a); Indonesia - between Gillolo and Kayoa (Griffin, 1976, Guinot & Richer de Forges, 1982b), Java (Griffin & Tranter, 1986a, Davie & Short, 1989), Kepulauan Kai (Griffin & Tranter, 1986a); Australia - mid-eastern Queensland (Davie & Short, 1989); 24-549 m.