Pereion and pleon segments smooth dorsally. Coxal plate 1 small, subrectangular: plates 2 and 3 elongate with distal margins rounded, weakly toothed. Epimeral plate 3 quadrate, the distal angle narrowly rounded. Head with a well developed rostrum, lateral lobes triangular; eyes moderately large, rounded. Antenna 1 and 2 very short; antenna 1 peduncle articles 1 and 2 about equal length, flagellum shorter than peduncle, about 6-articulate with few long marginal setae. Antenna 2 peduncle articles 4 and 5 about equal, flagellum very small, about 5-articulate. Gnathopods strongly subchelate; gnathopod 2 much larger than 1. Gnathopod 1 carpus with broad spinulose lobe, propodus broad distally. palm oblique, convex, delimited by small spine, palmar margin regularly toothed, dactylus long, slender, only weakly curved, inner proximal margin distinctly toothed. Gnathopod 2 ischium and merus with stout posterodistal spine, carpal lobe long, narrow, spinulose, propodus elongate, broad distally, palm oblique, convex, palmar margin regularly toothed, dactylus very long, slender, strongly curved with inner proximal margin toothed. Pereiopods 5 to 7 basis broad, oval, posterior margin smooth. Uropod 3 slender, smooth, scarcely reaching to end of uropod 1, rami little shorter than peduncle. Telson very elongate, apex acute, reaching well beyond end of peduncle of uropod 3.
Up to 4 mm.
Depth range from 5 to 100 metres; one record below 1000 metres.
Arctic Ocean; North Atlantic. Greenland, Iceland, northern Norway.