Typhlogammaridae Bousfield, 1978

Type genus. Typhlogammarus Schaferna, 1907 .

Diagnostic description. Body laterally compressed or subcylindrical. Eyes absent. Antennae 1–2 calceoli absent. Antenna 1 longer than antenna 2; peduncular article 1 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 or minute. 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. Labium inner lobes vestigial or absent. Coxal gills on pereopods 2–7, stalked (with proximal restriction or complete suture); sternal gills absent; sternal blisters absent; oostegites fringing setae simple. Gnathopod 1 subchelate; dissimilar in males and females (sexually dimorphic); smaller (or weaker) than or similar in size to gnathopod 2. Gnathopod 2 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 small anteroventral lobe. Pereopod 7 subequal in length to pereopod 5. Pleonites 1–3 without dorsal carinae. Urosomites 1–3 free; with slender or robust dorsal setae. Urosomite 1 with large distoventral robust seta. Urosomite 2 without dorsal setae. Uropod 1 with 1 or 2 basofacial robust setae or without basofacial robust setae. Uropod 3 not sexually dimorphic; biramous, without plumose setae; endopod shorter than exopod or subequal to exopod. Telson deeply cleft; dorsal or lateral robust setae present or absent; apical robust setae present.

Habitat. Freshwater, epigean.

Included genera. Accubogammarus G. Karaman, 1974; Anopogammarus Derzhavin, 1945; Metohia Absolon, 1927; Typhlogammarus Schaferna, 1907; Zenkevitchia Birstein, 1940 .

Distribution. Eurasia.