New, mainly southern hemisphere, freshwater families of Amphipoda (Crustacea), together with a description of the first freshwater calliopiid, Lutriwita bradburyi gen. nov. et sp. nov. Author Lowry, J. K. Crustacea Section, Australian Museum, 6 College Street, Sydney, New South Wales, 2010, Australia. Author Myers, A. A. School of Biological, Environmental and Earth Sciences, National University of Ireland Cork, Enterprise Centre, Lee Fields, Cork, Ireland. E-mail: bavayia @ gmail. com text Zootaxa 2012 2012-09-27 3499 27 45 journal article 1175-5326 CEEE477A-5F39-417F-8DFA-09102398734A Sandroidae fam. nov. Type genus. Sandro Karaman & Barnard, 1979 . Included genera. Sandro Karaman & Barnard, 1979 . Diagnostic description . Head eyes not known. Calceoli absent. Antenna 1 longer than antenna 2; peduncular article 1 subequal to article 2; accessory flagellum minute. Antenna 2 peduncular article 1 bulbous . Mandible incisor dentate. Labium with inner plates. Maxilla 1 inner plate strongly setose along medial margin; palp asymmetrical, left slender with apical slender setae, right swollen with apical robust setae . Maxilla 2 inner plate without oblique setal row. Maxilliped inner plate well developed; outer plate large. Body laterally compressed. Coxal gills present on coxae 2 to 6, stalked, with proximal suture. Sternal gills absent. Gnathopods 1 and 2 not sexually dimorphic (slightly). Gnathopod 1 similar in size and form to gnathopod 2; propodus without robust setae along palmar margin. Pereopod 4 with well developed posteroventral lobe; dactyli subterminal setae absent. Pereopods 5–7: pereopod 5 shorter, pereopods 6 and 7 similar length; dactyli with a few subterminal setae. Pereopod 5 coxa with small anteroventral lobe; basis expanded. Urosomites 1 to 3 coalesced , with robust dorsal setae. Urosomite 1 with distoventral robust seta . Urosomite 2 with paired dorsal setae. Uropod 1 peduncle without basofacial robust seta; without ventromedial spine. Uropod 3 biramous; rami sexually dimorphic ; without fringing plumose setae; inner ramus minute; 2-articulate, outer ramus article 2 short . Telson deeply cleft , with robust setae. Remarks. See remarks under Austroniphargidae . Distribution. Madagascar endemic.