A Phylogeny and Classification of the Senticaudata subord. nov. (Crustacea: Amphipoda) Author Myers, A text Zootaxa 2013 3610 1 1 80 journal article 10.11646/zootaxa.3610.1.1 126b5f67-71bb-46e4-874c-7f8864ea8cd1 1175-5326 283309 AA71AC2D-C7BF-43AE-9E25-29A5EC843B89 Anisogammaridae Bousfield, 1977 Type genus. Anisogammarus Derzhavin, 1927 . Diagnostic description. Body laterally compressed. Eyes well developed, round, ovoid or reniform. Antennae 1–2 calceoli gammarid ( type 1) . Antenna 1 shorter than subequal in length to or longer than antenna 2; peduncular article 1 subequal to or longer than article 2; article 2 longer than article 3; article 3 shorter than article 1; peduncular articles 1–2 not geniculate; accessory flagellum short. Antenna 2 peduncular article 1 enlarged, bulbous. Mandible molar triturative; palp symmetrical. Maxilla 1 basal endite setose along medial margin; palps symmetrical. Maxilla 2 basal endite with oblique setal row. Coxal gills on pereopods 2–7 , not stalked; sternal gills absent; sternal blisters absent; oostegites fringing setae simple. Gnathopod 1 subchelate; similar in males and females (not sexually dimorphic); similar in size to, or larger (or stouter) than gnathopod 2; propodus palm with peg-like robust setae along palmar margin. Gnathopod 2 subchelate; similar in males and females (not 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 or with small posteroventral lobe. Pereopod 5 shorter than pereopod 6 ; coxa with small anteroventral lobe. Pereopod 7 longer than pereopod 5. Pleonites 1–3 pleonite 3 with or without dorsal carinae. Urosomites 1–3 free; with slender or robust dorsal setae (check). Urosomite 1 without large distoventral robust seta. Urosomite 2 with pair of dorsal concavities each with 1–3 small setae or without dorsal setae . Uropod 1 with or without basofacial robust setae. Uropod 3 not sexually dimorphic; biramous, without plumose setae; endopod minute or shorter than exopod. Telson deeply or moderately cleft ; dorsal or lateral robust setae present or absent; apical robust setae present. Habitat. Freshwater, epigean. Included genera. Annanogammarus Bousfield, 1979 ; Anisogammarus Derzhavin, 1927 ; Barrowgammarus Bousfield, 1979 ; Carineogammarus Bousfield, 1979 ; Eogammarus Birstein, 1933 ; Eurypodogammarus Hou, Morino & Li, 2005;? Fuxiana Sket, 2000 ; Fuxigammarus Sket & Fiser, 2009 ; Jesogammarus Bousfield, 1979 ; Locustogammarus Bousfield 1979 ; Ramellogammarus Bousfield, 1979 ; Spasskogammarus Bousfield, 1979 ; Spinulogammarus Tzvetkova, 1972 . Distribution. Eurasia.