Hebetancylus excentricus (P.M.A. Morelet, 1851)
Menetus excuous T. Say
Ancylus expansilabris S. Clessin, 1882
Indoplanorbis exustus (G.P. Deshayes, 1834)
Gyraulus faini W. Adam, 1957
Anisus falsani (FOSSIL) (É.A.A. Locard, 1883 †)
Ferrissia farquhari B. Walker, 1924
Hippeutis fasciatus (FOSSIL) F. Gottschick, 1920 †
Biomphalaria fieldi (G.W. Tryon, 1863)
Segmentina filocincta (FOSSIL) (C.L.F. von Sandberger,1875 †)
Rhodacmea filosa (T.A. Conrad, 1834)
Planorbis fischeri (FOSSIL) W.A. Wenz, 1919 †
Menetus floridensis H.B. Baker, 1945
Ancylus fluviatilis O.F. Müller, 1774
Ancylus fonckii R.A. Philippi, 1866
Ferrissia fontinalis B. Walker, 1912
Gyraulus fontinalis B. Hubendick & P. Radoman,1959
Gyraulus formosus (Š. Brusina, 1902)
Pyrgophysa forskalii (C.G. Ehrenberg, 1831)
Helisoma foveale (K.T. Menke, 1830)
Ferrissia fragilis (G.W. Tryon, 1863)
Gyraulus fragilis (P.S. Pavlovic, 1903)
Gyraulus fuchsi (Lörenthey, 1902)
Burnupia fulminatus (K.T. Menke, 1828)
Laevapex fuscus (C.B. Adams, 1840)
Laevapex fuscusndi (C.B. Adams, 1841)
Planorbarius garsdorfensis (FOSSIL) W.R. Schlickum& F. Strauch, 1979 †
Ancylus gayanus D'Orbigny, 1837
Gyraulus geminus (FOSSIL) (Š. Brusina, 1897 †)
Gyraulus geniculatus (C.L.F. von Sandberger,1875)
Ferrissia gentilis R.M. Lanzer, 1991
Glyptophysa georgiana (J.R.C. Quoy& J.P. Gaimard, 1832)
Choanomphalus gerstfeldtianus W.A. Lindholm, 1909
Ceratophallus gibbonsi (R.N. Nelson, 1878)
Glyptophysa gibbosa (A.A. Gould, 1846)