Bithynia orcula G.R. von Frauenfeld, 1862
Bithynia pesicii P. Glöer & M.Z. Yildirim,2006
Bithynia phialensis (T.A. Conrad, 1852)
Bithynia phrygica (FOSSIL) (Fischer in Tchihatcheff,1866 †)
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 †)
Bithynia pontica (FOSSIL) Gozhik, 2002 †
Bithynia prespensis S. Hadžišce, 1963
Bithynia prestoni (P. Glöer & U. Bössneck,2013)
Bithynia protemmericia (FOSSIL) Willmann, 1981 †
Bithynia pseudemmericia H. Schütt, 1964
Bithynia pulchella (W.H. Benson, 1836)
Bithynia pygmaea H.B. Preston, 1908
Bithynia quintanai P. Glöer & J. Beckmann,2007
Bithynia radomani P. Glöer & V.M. Pešic,2007
Bithynia raptiensis (P. Glöer & U. Bössneck,2013)
Bithynia reharensis (P. Glöer & U. Bössneck,2013)
Bithynia riddifordi C.R. Altaba, 2007
Bithynia rubella (FOSSIL) H. Schütt in H. Schütt& Besenecker, 1973 †
Bithynia sabbae (FOSSIL) Gozhik, 2002 †
Bithynia schuetti (FOSSIL) W.R. Schlickum& F. Strauch, 1974 †
Bithynia schwabii G.R. von Frauenfeld, 1865
Bithynia sermenazensis (FOSSIL) Depéret, 1894 †
Bithynia shapkarevi P. Glöer, I. Shoreva& V. Slavevska-Stamenkovic, 2015
Bithynia siamensis I. Lea, 1856
Bithynia siamensis goniomphalos (P.M.A. Morelet, 1866)
Bithynia sibirica C.A. Westerlund, 1886
Bithynia sistanica (T.N. Annandale& B. Prashad, 1919)
Bithynia skadarskii P. Glöer & V.M. Pešic,2007
Bithynia starmuehlneri P. Glöer & V.M. Pešic,2012
Bithynia stenothyroides (W.L.H. Dohrn, 1857)
Bithynia subbaraoi (P. Glöer & U. Bössneck,2013)
Bithynia sulcata G. Mandahl-Barth, 1974
Bithynia syriaca (FOSSIL) Blanckenhorn, 1897 †