Steele and Brunel, 1968
Body robust; coxal plates elongate; epimeral plate 3 posterodistal angle forming a large triangular tooth. Head with subtriangular lateral lobes, more rounded in male than in female, lower margin straight; eyes very large, especially in male, elongate and occupying a large part of the lateral lobe, colour black. Female antenna 1 a little shorter than antenna 2, peduncle article 1 very large, articles 2 and 3 strongly compressed, flagellum shorter than the peduncle; accessory flagellum about 8-articulate; female antenna 2 peduncle robust, flagellum sparsely setose; antenna 1 and 2 in male rather longer than in female, flagellum with more numerous articles and distinct calceoli. Gnathopod 1 subchelate, propodus equal to the length of the carpus, rectangular, posterior margin concave, palm transverse, delimited by two stout spines, palmar margin finely serrate. Gnathopod 2 minutely subchelate, propodus half the length of the carpus, very densely setose. Pereiopods 3 and 4 propodus, posterior margin with setae and spines; pereiopod 7 basis broad, posterior margin serrate. Branchial lobes pleated on both sides. Uropods 1 and 2 spinose, rami about equal in length; uropod 3 outer ramus a little longer than the inner one, inner margins only with long plumose setae, numerous in male. Telson deeply cleft, each lobe with a large apical spine and three dorsal spinules and a pair of proximal setae.
Up to about 30 mm.
Usually found on sandy sediments in shallow water. Depth range from 0 to 50 metres.
Circumpolar, in the eastern North Atlantic south to Firth of Forth and perhaps Bohuslän.