Type species. Pseudharpinia dentata Schellenberg, 1931
Amended diagnosis. Head with dorsal keel or ventrolateral lines present in some species. Rostrum unconstricted. Eyes absent. Antennae 1–2 flagella unreduced in females. Antenna 1 peduncle article 2 short, with ventral setae widely spread. Antenna 2 peduncle article 1 ensiform, article 4 with one main row of facial stout setae, article 5 slender and short. Mandible molar pillow-shaped as a small hump, not triturative, bearing splayed stout setae; palpar hump small. Maxilla 1 palp 2-articulate. Maxilla 2 weakly setose. Maxilliped palp article 4 not elongated, with long and distinct apical nail. Gnathopods 1–2 small, similar, carpus short and free, with weak eusirid attachment; propodus ovatorectangular, weakly elongated and weakly setose anteriorly; palms acute. Gnathopod 2 slightly larger than gnathopod 1. Pereopods 3–4 carpus moderately to strongly setose. Pereopod 5 basis narrow. Pereopods 5–6 merus and carpus narrow. Pereopod 7 basis often setose anterodistally, posteroventral lobe often serrate; ischium enlarged. Epimeral plates 1–2 without long posterior setae. Urosomite 3 smooth. Uropod 1 peduncle elongated, without ventroapical spike or lateroapical enlarged seta. Uropod 3 outer ramus article 2 short, with 1 or 2 long setae apically. Telson with one to four apical or subapical setae on each lobe, often with dorsolateral setae.
Composition of the genus. Pseudharpinia abyssalis ( Pirlot, 1932); P. antarctica Ren in Ren & Huang, 1991; P. ayutlanta (J.L. Barnard, 1964); P. berardo Senna, 2010; P. birjulini ( Gurjanova, 1953); P. bonhami sp. nov.; P. brevirostris Chevreux, 1920; P. calcariaria Bushueva, 1982; P. cariniceps (K.H. Barnard, 1932); P. cinca (J.L. Barnard, 1961); P. dentata ( Schellenberg, 1931); P. excavata ( Chevreux, 1887); P. inexpectata Jarret & Bousfield, 1994; P. jonesyi sp. nov.; P. latipes ( Norman, 1900); P. macrospinosa Valério-Berardo & Piera, 2006; P. obtusifrons ( Stebbing, 1888); P. ovata Senna, 2010; P. pagei sp. nov.; P. planti sp. nov.; P. tupinamba Senna & Souza-Filho, 2011; P. vallini ( Dahl, 1954);