Theodoxus novorossicus (FOSSIL) (Sinzov, 1896 †)
Theodoxus numidicus (C.A. Récluz, 1841)
Theodoxus obtusangulaeformis (FOSSIL) Gozhik, 2002 †
Theodoxus octagonus Eichhorst, 2016
Theodoxus oxytropida (FOSSIL) (N.I. Andrusov, 1909 †)
Theodoxus pallasi W.A. Lindholm, 1924
Theodoxus pallidus R.W. Dunker, 1861
Theodoxus pappi (FOSSIL) Sauerzopf, 1952 †
Theodoxus paradisii (FOSSIL) (Magrograssi, 1928 †)
Theodoxus patrae (FOSSIL) D. Esu & O. Girotti,2015 †
Theodoxus pavlovici (FOSSIL) Miloševic, 1983 †
Theodoxus peloponensis (C.A. Récluz, 1841)
Theodoxus percarinatus (FOSSIL) (P. Oppenheim, 1919 †)
Theodoxus petasatus (FOSSIL) (Seninski, 1905 †)
Theodoxus philippianus (FOSSIL) É.A.A. Locard, 1883 †
Theodoxus pilari (FOSSIL) (Š. Brusina, 1884 †)
Theodoxus pilidei J.R. Tournouër, 1839
Theodoxus platystoma (FOSSIL) (Š. Brusina, 1874 †)
Theodoxus politioanei (FOSSIL) E. Jekelius, 1944 †
Theodoxus politus (FOSSIL) E. Jekelius, 1944 †
Theodoxus postcrenulatus (FOSSIL) Papp, 1953 †
Theodoxus prevostianus (L. Pfeiffer, 1828 )
Theodoxus prozlatarici (FOSSIL) E. Jekelius, 1944 †
Theodoxus pseudodacicus (FOSSIL) T.A. Neubauer, M. Harzhauser, E. Georgopoulou, O. Mandic& A. Kroh, †
Theodoxus pseudodanubialis (FOSSIL) (Sinzov, 1896 †)
Theodoxus pseudofluviatilis (FOSSIL) É.A.A. Locard, 1893 †
Theodoxus pseudograteloupanus (FOSSIL) (Sinzov, 1884 †)
Theodoxus punctatolineatus (FOSSIL) (Sinzov, 1896 †)
Theodoxus quadrifasciatus (FOSSIL) (E.A. Bielz, 1864 †)
Theodoxus radmanesti (FOSSIL) (A. Fuchs, 1870 †)
Theodoxus radovanovici (FOSSIL) (Š. Brusina, 1893 †)
Theodoxus reiseri (FOSSIL) (Š. Brusina, 1902 †)
Theodoxus reticularis G.B. Sowerby, 1838
Theodoxus reticulatus (FOSSIL) Pana, 1990 †
Theodoxus rhodiensis (FOSSIL) (J.R. Tournouërin Fischer, 1877 †)