Tropidophora tricarinata bicarinata (G.B. Sowerby, 1843)
Tropidophora tricarinata brevimargo A. Mousson, 1882
Tropidophora tricarinata chenui E. Fischer-Piette, 1949
Tropidophora tricarinata citrina (G.B. Sowerby, 1843)
Tropidophora tricarinata consanguinea (G.B. Sowerby, 1874)
Tropidophora tricarinata euchila (L. Pfeiffer, 1851)
Tropidophora tricarinata jousseaumia J.F. Mabille
Tropidophora tricarinata kianjavatoi P. Fischer
Tropidophora tricarinata madagascariensis (J.E. Gray, 1834)
Tropidophora tricarinata mahaderensis E. Fischer-Piette, M. Cauquoin& A.M. Testud, 1973
Tropidophora tricarinata multifasciata (J.P.S. Grateloup, 1840)
Tropidophora tricarinata unicarinata (J.B.P.A. Lamarck, 1822)
Tropidophora tricarinata zonulata G.B. Sowerby, 1850
Torrella trinidadensis C. de la Torre & P. Bartsch,1941
Annularia triploploma (H.B. Baker, 1934)
Eutudorops troscheli (L. Pfeiffer, 1864)
Choanopoma tryoni (R. Arango, 1879)
Cyclotopsis tsaratananae (K.C. Emberton, 2003)
Wrightudora tuberculata (C. de la Torre& P. Bartsch, 1941)
Chondropoma tucayum W.H. Pease
Tropidophora tulearensis E. Fischer-Piette, 1949
Dioscopoma turbinatum (H.H. Godwin-Austen,1881)
Opisthosiphon turiguanoense C. de la Torre & P. Bartsch,1941
Chondropoma turnerae W.J. Clench, 1950
Chondropoma turritum L. Pfeiffer, 1853
Parachondria umbricola (C.D. Weinland)
Annularia uncinata (R. Arango, 1884)
Eutudorops undosa (J. Gundlachin L. Pfeiffer, 1863)
Cyclostoma unicolor G.A. Olivier, 1804
Chondropoma unilabiatum (J. Gundlachin L. Pfeiffer, 1860)
Chondrothyra uniplicata C. de la Torre & P. Bartsch,1938
Tropidophora vallorzi E. Fischer-Piette, F. Blanc& F. Salvat, 1969
Chondropoma vanattae H.A. Pilsbry, 1933
Dioscopoma vandammei E. Neubert, 2009
Omanitopsis vandammei (FOSSIL) M. Harzhauser& T.A. Neubauer, 2015 †