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(Sars, 1882)

Body without dorsal teeth but the urosome segments 1 to 3 each with a pair of dorsolateral spinules and setules. Coxal plate 1 slightly produced anteriorly, rounded; plates 1 to 4 with the distal margins setose, plate 6 in female with the anterior lobe rounded. Epimeral plate 3 quadrate, posterodistal angle acute but scarcely produced, posterior margin smooth with a few short setules. Head with the lateral lobes broadly rounded; eyes small, oval. Antenna 1 about two-thirds of the body length, peduncle articles 1 and 2 about equal in length, flagellum about 20-articulate; accessory flagellum very small, 1-articulate. Antenna 2 only half the length of antenna 1, flagellum about 11-articulate. Gnathopod 1 merus with strong setae on the posterodistal margin, carpus longer than the propodus and densely setose, palm convex, delimited by a group of slender spines. Male gnathopod 2, carpus with a rounded setose posterior lobe, propodus large, oval, palm oblique, delimited by a large spine, palmar margin spinose, dactylus with the inner margin serrate. Female gnathopod 2 generally similar to the male one, except much smaller and the palm less strongly oblique and setose rather than spinose. Pereiopods 5 to 7 basis broadly expanded, posterior margin serrate. Uropods 1 and 2 short and sparsely spinose; uropod 3 outer ramus very large and at least three times the length of the peduncle, spinose, and in male setose also; uropod 3 much larger in male than in female. Telson short, cleft to three-quarters of the length, each lobe with a group of apical spines.

Up to 6 mm.


A brackish-water species, locally common, mostly found in harbours or brackish ditches.

British Isles, Southern Norway; northern France.

Allomelita pellucida