Succinea californica P.H. Fischer& J.C.H. Crosse, 1878
Calcisuccinea campestris (T. Say, 1817)
Calcisuccinea campestris vagans (H.A. Pilsbry, 1900)
Succinea candeana I. Lea, 1841
Succinea canella A.A. Gould, 1846
Succinea carmenensis P.H. Fischer& J.C.H. Crosse, 1878
Succinea casta C.M.F. Ancey, 1899
Succinea catena G.C. Spence, 1925
Succinea cepulla A.A. Gould, 1846
Succinea ceylanica L. Pfeiffer
Neosuccinea chinensis L. Pfeiffer
Novisuccinea chittenangoensis (H.A. Pilsbry, 1908)
Succinea cinnamomea C.M.F. Ancey, 1889
Succinea clarionensis W.H. Dall, 1926
Succinea cleopatrae P.M. Pallary
Succinea cochinchinensis L. Pfeiffer, 1863
Succinea collina S.C.T. Hanley & W. Theobald,
Succinea colorata P.H. Fischer& J.C.H. Crosse, 1878
Succinea comorensis E. Fischer-Piette& D. Vukadinovic, 1974
Quickia concisa (P.M.A. Morelet, 1888)
Succinea concordialis A.A. Gould, 1848
Succinea contenta T. Iredale, 1939
Succinea contorta C.B. Adams, 1845
Papyrotheca contraria (FOSSIL) Š. Brusina, 1893 †
Omalonyx convexus (E.C. Von Martens, 1868)
Succinea cordovana P.H. Fischer& J.C.H. Crosse, 1878
Succinea costaricana E.C. Von Martens
Succinea costaricensis E.C. Von Martens, 1898
Succinea cristfieldi B.D. Jackson, 1958
Succinea crocata A.A. Gould
Succinea cuvieri (J.F. Gmelin, 1791)
Succinea cygnorum H.A. Pilsbry, 1930
Oxyloma cyphopleura (FOSSIL) Gardner & Campbell 2002a †,
Succinea daucina L. Pfeiffer
Oxyloma decampi (G.W. Tryon, 1866)