Segmentorbis planodiscus (J.C. Melvill& J.H. Ponsonby, 1897) South Africa
Taphius montanus (A.V.M.D. D'Orbigny,1835) Bolivia, Lake Titicaca
Taphius montanus bakeri (A.V.M.D. D'Orbigny,1835) Bolivia, Lake Titicaca
Taphius montanus concatenatus (A.V.M.D. D'Orbigny,1835) Bolivia, Lake Titicaca9 mm
Taphius montanus heteropleurus H.A. Pilsbry & E.G. Vanatta, Bolivia, Lake Titicaca
Rhodacmea cahawbensis (B. Walker, 1917) Alabama, Cahaba River
Rhodacmea elatior (J.G. Anthony, 1855) Alabama, Coosa River
Rhodacmea filosa (T.A. Conrad, 1834) Alabama
Rhodacmea hinkleyi (B. Walker, 1908) USA, Arizona