Pallaseidae Takhteev 2000

Pallaseidae Takhteev, 2000

Type genus. Pallasea Bate, 1862.

Diagnostic description. Body laterally compressed. Eyes well developed, ovoid or reniform. Antennae 1–2 calceoli absent. Antenna 1 subequal in length to, or longer than antenna 2; peduncular article 1 longer than article 2; article 2 slightly longer than article 3; article 3 shorter than article 1; peduncular articles 1–2 not geniculate; accessory flagellum minute. Antenna 2 peduncular article 1 enlarged, bulbous. Mandible molar present; palp symmetrical. Maxilla 1 basal endite setose along medial margin; palps symmetrical. 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 gnathopod 2; propodus palm without 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 small posteroventral lobe. Pereopod 5 shorter than or subequal in length to pereopod 6; coxa with small anteroventral lobe. Pereopod 7 subequal in length to, or longer than pereopod 5. Pleonites 1–3 without dorsal carinae. Urosomites 1–3 free; 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; biramous, with plumose setae; endopod shorter than exopod. Telson emarginate; dorsal or lateral robust setae absent; apical robust setae absent.

Habitat. Freshwater, epigean.

Included genera. Babr Kamaltynov & Väinölä, 2001; Burchania Takhteev, 2000; Hakonboeckia Stebbing, 1899 b; Homalogammarus Bazikalova, 1945; Pallasea Bate, 1862; Pallasaeopsis Kamaltynov & Väinölä, 2001; Pentagonurus Sowinsky, 1915; Propachygammarus Bazikalova, 1945.

Distribution. Lake Baikal.