Slabber, 1769
Flagellum of ANT II 4-5-articulated (Phtisica marina 1). MD with 3-articulated palp. P I-II subchelate, II larger and stronger than I; sexual dimorphism weak (Phtisica marina 2, Phtisica marina 3). P V with fused ART 2 and 3. Gills on pereonites II-IV. Abdomen with 2 pairs of 2-articulated, rudimentary appendages, 1 additional pair of unarticulated processes in males.
Three species, one in our field of interest:
Phtisica marina Slabber, 1769