Body very slender, elongate, smooth; coxal plates small and scarcely contiguous, plate 1 produced acutely forwards. Epimeral plate 3 distal angle forming large tooth. Head without rostrum, lateral lobes broadly rounded, post-antennal angle acute; eyes absent. Antenna 1 as long as body, peduncle articles 1-2 subequal length, article 3 very small, flagellum very long and slender; accessory flagellum minute, 2-articulate. Antenna 2 short, only reaching little beyond peduncle of antenna 1, flagellum very small and shorter than peduncle article 5. Gnathopods subchelate, setose, basis narrow proximally; gnathopod 1 carpus more slender than propodus, about equal length, propodus triangular, palm convex and delimited by obtuse angle. Gnathopod 2 larger than 1, carpus short with setose posterior lobe, propodus elongate oval, palm longitudinal and irregular, delimited by 2-3 large spines and with single mid-marginal spine. Pereopod 5 short, basis slender; pereopod 6 longer than 5, basis weakly expanded; pereopod 7 much longer still, basis strongly expanded with posterior margin serrate. Uropods 1-2 small, spinose; uropod 3 (enormous, peduncle short, outer ramus 2-articulate and as long as entire pleon, both articles flattened and with marginal spinules, apex with tuft of setae; inner ramus small and scale-like. Telson small, cleft to base, apex of each lobe with small notch and 1-2 setules.
Up to 11 mm.
Depth range 30 from 800 to metres.
North East Atlantic; widespread and quite frequently recorded; from north and west Norway, Iceland, Faroes to the Mediterranean.
Source: Lincoln, 1979.