Bate, 1858
Description:
Pereiopods 1-4 of the male and 1-3 of the female provided with well developed exopodites. Distal end of the basis of maxilliped 3 little or not at all prolonged. Eyes well developed.
Adult male with a smooth carapace, without teeth; antennal notch shallow. The last pleonite projecting backwards between the uropods and with its hind border serrated but these not always apparent. Flagellum of antenna 2 short, scarcely reaching beyond pereionite 5.
Female with a median dorsal toothed crest on the carapace, composed of two parallel rows of small teeth. The antennal notch is deeper and serrated with a pronounced anterolateral angle below it. The eyelobe is well developed and strongly pigmented.
No free telson.
Size:
Length of male up to about 5 mm; female up to 6 mm.
Habitat:
Shelf.
Depth range:
In shallow water down to about 40 m on sand or coarse bottoms. Males attracted to light at night.
Distribution in the North Sea:
Northern North Sea.
World distribution:
Round the south and west coasts of the British Isles. Also extending to the coast of Morocco and into the Mediterranean and recorded from South Vietnam and South Africa.