McArdle, 1900
Carapace with granular surface and prominent tubercular ridges extending obliquely along the anterior part of each branchial region, protogastric spines erect, almost parallel and only slightly longer than the branchial spines; supraorbital eave unarmed; rostral spines shorter than interantennular spine; pterygostomial region quite flat and smooth and the lateral margin consists of a narrow ridge of two to three long spines, several small spines and long hairs. Eyestalk smooth except for distal process. Antennal peduncle cylindrical, basal article with three long slender spines directed ventrally. (Türkay 1995)
Type locality: off Sri Lanka.
Range: Sri Lanka (McArdle, 1900); Bay of Bengal; Andaman Sea - off South Andaman Island (MacGilchrist, 1905, Guinot, 1985b); Japan - Sagami Bay (Griffin & Tranter, 1986a); Philippines - off Zamboanga (Griffin & Tranter, 1986a); Indonesia - Kepulauan Kai (Griffin & Tranter, 1986a); 370-942 m.