Bulinus browni J.E. Jelnes, 1979
Ancylastrum brunnea B. Walker, 1924
Anisus brunnensis (FOSSIL) (Sauerzopf, 1953 †)
Gyraulus brusinai (Lörenthey, 1894)
Segmentina bugense (FOSSIL) Gozhik & Prysjazhnjuk,1978 †
Camptoceras buldowskii Y.I. Starobogatov& L.A. Prozorova, 1990
Anisus buriaticus L.A. Prozorova& Y.I. Starobogatov, 1997
Ferrissia burnupi B. Walker, 1912
Ancylastrum caffra (C.F.F. von Krauss, 1848)
Rhodacmea cahawbensis (B. Walker, 1917)
Segmentina calatha W.H. Benson, 1850
Anisus calculiformis (C.L.F. von Sandberger,1874)
Laevapex californica (J. Rowell, 1863)
Pierosoma caloderma (H.A. Pilsbry, 1923)
Uncancylus calverti H.A. Pilsbry, 1920
Bulinus camerunensis G. Mandahl-Barth, 1957
Biomphalaria camerunensis C.R. Böttger, 1941
Planorbella campanulata (T. Say, 1821)
Planorbula campestris I. Dawson, 1875
Bulinus canescens (P.M.A. Morelet, 1868)
Hippeutis cantori (W.H. Benson, 1850)
Ancylastrum capensis B. Walker, 1912
Hippeutis capitis T.N. Annandale, 1922
Neoplanorbis carinatus B. Walker, 1908
Planorbis carinatus O.F. Müller, 1774
Anisus carinea (C.A. Westerlund, 1897)
Lentorbis carringtoni J.F. de Azevedo, 1961
Drepanotrema castanaeonitens H.A. Pilsbry & E.G. Vanatta,1896
Segmentina caucasica N.D. Kruglov& E.V. Soldatenko, 1997
Ferrissia caurina (J.G. Cooper, 1870)
Ferrissia cawstoni B. Walker, 1924
Miratesta celebensis P.B. Sarasin & K.F. Sarasin,1898
Menetus centervillensis (G.W. Tryon, 1866)
Anisus centrifugops L.A. Prozorova& Y.I. Starobogatov, 1997
Anisus centrifugus (C.A. Westerlund, 1897)