Head elongate or short bearing a large triangular process. Propodus of Gn 2 elongate in males. Pereopods 3-5 each either have a pair of grasping spines or lack grasping spines but have setae. Gills usually ovate.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith