Gnathopod 1 present. Mandibles lack molar. Mandibles and maxillae vestigal. Outer plates of maxilipeds vestigal or absent. Coxa 1 much smaller than coxa 2. Telson entire.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith