Only female described. Pleon setulose dorsally. Coxal plates 1 to 3 with the posterodistal margin rounded; distal margin with many plumose setae; coxal plate 5 with the posterior lobe especially long, almost reaching the distal margin of plate 4. Posterodistal angle of epimeral plate 3 with a large curved tooth. Antennae robust; antenna 1 flagellum about 6-articulate; accessory flagellum 5-articulate. Antenna 2 flagellum about 5-articulate. Gnathopods similar: gnathopod 2 slightly larger than 1; propodus oval, palm convex, delimited by acute process and slender spine. Pereiopods 3 and 4 robust, carpus with posterior margin strongly spinose. Pereiopod 5 basis slender, merus, carpus and propodus only moderately setose. Pereiopod 6 elongate, slender, spinose, propodus with few long marginal setae, dactylus spiniform. Pereiopod 7 basis with posterior margin very coarsely toothed, margin with about 5 or 6 very large teeth. Uropod 3 outer ramus sparsely spinulose, inner ramus only about half length of outer ramus, both with long apical seta. Telson short, rounded, deeply cleft, each lobe with 2 or 3 small setules.
Up to 6 mm.
Depth range from 20 to 200 metres.
Arctic-boreal species; Greenland; north Norway; Arctic Ocean and one doubtful record from Northumberland (Lincoln, 1979).