Coxal plate 1 prolonged anteriorly, margin truncated; plate 2 broader than long in male, anterior margin produced strongly forwards overlapping plate 1; plates 2-4 with distal margin rounded. Epimeral plate 3 posterodistal angle with prominent upcurved tooth. Eyes large, irregularly rounded, deep red in colour. Antenna 1 peduncle articles 1 and 2 subequal length, flagellum up to about 10-articulate. Antenna 2 shorter than 1, peduncle article 4 longer than 5, flagellum about 7-articulate; antenna I and 2 peduncle longer and more robust in male than female. Gnathopod 1 carpal process quite broad, inner distal margin toothed , apex sharply up-turned, propodus with inner margin smooth, setulose, dactylus short, only about one-quarter length of propodus. Gnathopod 2 carpus with densely setose posterior lobe, apex toothed, propodus very large and robust, elongate-oval, palm weakly crenulate distally, posterior margin weakly concave, dactylus long and robust. Gnathopod 2 smaller in female than male with palm more or less smooth. Pereopods moderately robust. Telson about twice as long as broad, apex narrowly rounded with pair of small setules.
Up to 7 mm.
Whitish, yellowish green dorsally.
Depth range from 0 to 60 metres, usually on sand or mud; locally numerous or even very common.
Atlantic coast of Europe; North Sea; from Scotland to the Mediterranean.
Source: Lincoln, 1979.