Theodoxus angularis (FOSSIL) Gozhik, 2002 †
Theodoxus anonymus (FOSSIL) V.V. Anistratenko& Gozhik, 1995 †
Theodoxus astrachanicus Y.I. Starobogatov, 1994
Theodoxus atticus (FOSSIL) Kühn, 1963 †
Theodoxus baconi L.A. Reeve, 1856
Theodoxus baeticus J.B.P.A. Lamarck, 1822
Theodoxus banaticus (FOSSIL) E. Jekelius, 1944 †
Theodoxus barakovici (FOSSIL) (Š. Brusina, 1902 †)
Theodoxus becenensis (FOSSIL) (Cobalcescu, 1883 †)
Theodoxus bessarabicus (FOSSIL) (Sinzov, 1896 †)
Theodoxus bohotinensis (FOSSIL) (Simionescu & Barbu,1940 †)
Theodoxus bolivari (FOSSIL) (Royo Gómez, 1922 †)
Theodoxus boteani (FOSSIL) (Porumbaru, 1881 †)
Theodoxus bouryi (FOSSIL) A.E.M. Cossmann, 1888 †
Theodoxus brenneri (FOSSIL) (Handmann, 1882 †)
Theodoxus brusinai (FOSSIL) (P.S. Pavlovic, 1931 †)
Theodoxus bukowskii (FOSSIL) (P. Oppenheim, 1919 †)
Theodoxus burdigalensis (FOSSIL) (Orbigny, 1827 †)
Theodoxus capellinii (FOSSIL) (D. Pantanelli, 1876 †)
Theodoxus capillaceus (FOSSIL) (Š. Brusina, 1874 †)
Theodoxus carasiensis (FOSSIL) E. Jekelius, 1944 †
Theodoxus carinatus (FOSSIL) (Fuchs, 1877) †
Theodoxus cariosus (W. Wood, 1828)
Theodoxus colchicus (FOSSIL) (N.I. Andrusov, 1912 †)
Theodoxus constantiae (FOSSIL) Stefanescu, 1896 †
Theodoxus coronatus (W.E. Leach, 1815)
Theodoxus crenulatus (FOSSIL) (E. Klein, 1853 †)
Theodoxus crenulatus bessarabica (FOSSIL) (Sinzow, 1899 †)
Theodoxus crescens (FOSSIL) (A. Fuchs, 1870 †)
Theodoxus culceri (FOSSIL) (Porumbaru, 1881 †)
Theodoxus cunici (FOSSIL) (Š. Brusina, 1892 †)
Theodoxus cyrtocelis (FOSSIL) (C.F.F. von Krauss,1852 †)
Theodoxus danasteri (W.A. Lindholm, 1908)
Theodoxus danubialis (L. Pfeiffer, 1828)
Theodoxus danubialis stragulatus (L. Pfeiffer, 1828)