Phliantidae Stebbing, 1899 b

Type genus. Phlias Guerin, 1836 .

Diagnostic description. Body laterally compressed or dorsoventrally flattened. Eyes well developed, round. Antennae 1–2 calceoli absent. Antenna 1 longer than antenna 2; peduncular article 1 longer than article 2; article 2 subequal to, or longer than article 3; article 3 shorter than article 1; peduncular articles 1–2 not geniculate; accessory flagellum absent. Antenna 2 peduncular article 1 not enlarged. Mandible molar non-triturative or with tiny triturating patch; palp absent. Maxilla 1 basal endite apically setose; palp absent, symmetrical. Coxal gills [not known]; sternal gills absent; sternal blisters absent; oostegites fringing setae curl-tipped. Gnathopod 1 simple or subchelate; dissimilar in males and females (sexually dimorphic); smaller (or weaker) than or similar in size to gnathopod 2; propodus palm without robust setae along palmar margin. Gnathopod 2 simple or subchelate; dissimilar in males and females (sexually dimorphic); carpus not produced along posterior margin of propodus, projecting between merus and propodus. Pereopods 3–4 not sexually dimorphic. Pereopod 4 with well developed posteroventral lobe. Pereopod 5 subequal in length to pereopod 6; coxa with large anteroventral lobe. Pereopod 7 subequal in length to, or longer than pereopod 5. Pleonites 1–3 without dorsal carinae. Urosomites 1–3 free or 1–2 coalesced, 3 free or 1–3 superficially coalesced; without slender or robust dorsal setae. Urosomite 1 without large distoventral robust seta. Urosomite 2 without dorsal setae. Uropod 1 without basofacial robust setae. Uropod 3 not sexually dimorphic; uniramous or rami absent. Telson entire; dorsal or lateral robust setae absent; apical robust setae absent.

Habitat. Marine, epigean.

Included genera. Gabophlias J.L. Barnard, 1972 b; Iphinotus Stebbing, 1899 b; Iphiplateia Stebbing, 1899 b; Pariphinotus Kunkel, 1910; Pereionotus Bate & Westwood, 1863; Phlias Guerin, 1836; Quasimodia Sheard, 1936 .

Distribution. Widespread in both hemispheres.