Bithynia multisulcata (J.R. Bourguignat, 1888)
Bithynia nakeae P. Glöer & J. Beckmann,2007
Hydrobioides nana T.N. Annandale, 1918
Gabbia napierensis W.F. Ponder, 2003
Hydrobioides nassa (W. Theobald, 1865)
Gabbiella neothaumaeformis (J. Germain, 1907)
Gabbiella neumanni (E.C. Von Martens, 1897)
Neumayria neumayri (FOSSIL) Girotti, 1972 †
Bithynia numidica J.R. Bourguignat, 1864
Gabbia obesa W.F. Ponder, 2003
Lufengospira obsoleta (FOSSIL) Yu & Xi, 1977 †
Bithynia orcula G.R. von Frauenfeld, 1862
Tylopoma orientalis (FOSSIL) (Papaianopol & Macale?,1999 †)
Sierraia outambensis D.S. Brown, 1988
Digoniostoma oxiana Z.I. Izzatullaev, 1982
Gabbia pallidula W.F. Ponder, 2003
Pseudobithynia panetolis P. Glöer, C. Albrecht& T. Wilke, 2007
Gabbiella parva (G. Mandahl-Barth, 1954)
Gabbiella parvipila (B. Verdcourt, 1958)
Pseudobithynia pentheri (R. Sturany, 1904)
Bithynia pesicii P. Glöer & M.Z. Yildirim,2006
Bithynia phialensis (T.A. Conrad, 1852)
Bithynia phrygica (FOSSIL) (Fischer in Tchihatcheff,1866 †)
Parabithynia physcus (T.N. Annandale, 1918)
Bithynia pilari (FOSSIL) M. von Neumayr in M. von Neumayr& C.R.C. Paul, 1875 †
Bithynia pisidica (FOSSIL) P. Oppenheim, 1919 †
Bithynia podarensis (FOSSIL) (Pana in Pana & al.,1981 †)
Neumayria podwinensis (FOSSIL) (M. von Neumayr in M. von Neumayr& C.R.C. Paul, 1875 †)
Bithynia pontica (FOSSIL) Gozhik, 2002 †
Bithynia prespensis S. Hadžišce, 1963
Bithynia prestoni (P. Glöer & U. Bössneck,2013)
Parafossarulus priscillae O. Girotti, 1972
Bithynia protemmericia (FOSSIL) Willmann, 1981 †
Bithynia pseudemmericia H. Schütt, 1964
Bithynia pulchella (W.H. Benson, 1836)