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(Slabber, 1767)

Body broadly arched and weakly laterally flattened. Head with acute lateral lobes; eyes small and poorly defined, white, often indistinct in large specimens. Antenna 1 peduncle robust and densely setose, flagellum about 9-articulate; accessory flagellum 5-articulate. Antenna 2 peduncle articles 4 and 5 broad, posterior margins fringed with long plumose setae, flagellum about 10-articulate. Gnathopod 1 simple, densely setose, carpus much larger than propodus, dactylus small. Gnathopod 2 also densely setose, generally similar to 1 except propodus minutely chelate. Pereiopods 3 and 4 small, articles broad and setose, dactylus absent. Pereiopods 5 to 7 powerfully developed, strongly spinose, and with numerous long plumose setae, dactylus absent. Uropods robust. Telson broader than long, partly cleft.

Up to 13 mm.

Pale yellow or white.

Intertidal, up to the high water mark; burrows in sand and is usually more numerous in wet sands at lower levels on the shore.

North Atlantic, American and European coasts; North Sea. European coasts from Norway and southern Baltic to the Atlantic coast of France.

Haustorius arenarius