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(Bate and Westwood, 1862)

Description:
Coxal plates moderately long; plate 5 anterior lobe rounded. Head with lateral lobes very strongly produced, distal margin rounded; eyes small, rounded, set close to the apex of lobe. Antennae very slender, about equal, about half the body length, posterior margins with numerous long setae; antenna 1 peduncle article 2 long and slender, article 3 very slender and slightly longer than article 1; flagellum with about 12 articles. Antenna 2 peduncle article 3 elongate, article 5 little shorter than article 4, flagellum about 10-articulate. Propodus of gnathopod 1 longer than the carpus, oval, palm convex, not delimited, palmar margin minutely toothed. Female gnathopod 2 larger than 1, carpus with a slender setose posterior lobe, propodus broad, palm irregularly emarginate with a small rounded distal tubercle, dactylus with the inner margin serrate. Male gnathopod 2 generally similar to female except much larger and the palm more strongly sculptured, basis very robust with a large anterodistal lobe. Propodus of pereiopods 3 and 4 elongate, slender, more than twice the length of the carpus. Pereiopods 5 to 7 robust, very sparsely setose. Rami of uropods 1 to 3 smooth, or occasionally sparsely spinosa; outer ramus of uropod 3 slender, little longer than the peduncle, inner ramus minute. Telson short, triangular, apex truncated.

Size:
Up to about 6 mm.

Colour:
Whitish, with transverse brown bands.

Habitat:
Depth range about 0 to 200 metres, occasionally collected from the lower intertidal.

Distribution:
North and North East Atlantic; Arctic Ocean; widespread. European coasts from Norway to Mediterranean. North Sea, Öresund, Bohuslän, around British Isles.

Photis longicaudata