Pseudotoma heilprini (FOSSIL) (T.H. Aldrich, 1885 †)
Polystira hennequini E.J. Petuch
Lepicythara heptagona (FOSSIL) (W.M. Gabb, 1873 †)
Pleurotoma hexagonum L. Pfeiffer, 1840
Turris hidalgoi J.L. Vera-Peláez, R. Vega-Luz& M.C. Lozano, 2000
Nangulanica hillegondae (FOSSIL) (K. Martin, 1914 †)
Gemmula hindsiana S.S. Berry, 1958
Gemmula hinschi (FOSSIL) (Anderson, 1964 †)
Pleurofusia hiwanneensis (FOSSIL) McNeil, 1984 †
Gemmula hombroni C. Hedley, 1922
Turris hornesi (FOSSIL) G.P. Deshayes, 1866 †
Eopleurotoma houdasi (FOSSIL) M.E.A. de Boury, 1899 †
Hemipleurotoma humilis (FOSSIL) A. von Koenen, 1890 †
Gemmula husamaru (S. Nomura, 1940)
Turris hyugaensis T. Shuto, 1961
Pleurotoma ickei (FOSSIL) Martin, 1906 †
Peratotoma iheringi (FOSSIL) A.E.M. Cossmann, 1899 †
Gemmula imitatrix (FOSSIL) Martin, 1916 †
Dallora imparella (FOSSIL) (W.H. Dall, 1908 †)
Unedogemmula ina (FOSSIL) F.S. MacNeil, 1960 †
Pleurotoma inaudita (FOSSIL) Bose, 1906 †
Andoniopsis inchoata (FOSSIL) (G.P. Deshayes, 1864 †)
Eosurcula inconstans (FOSSIL) Cooper, 1894 †
Lucerapex indagatoris (H.J. Finlay, 1927)
Lophiotoma indica (P.F. Röding, 1798)
Lophiotoma indica bulowi (G.B. III Sowerby, 1888)
Lophiotoma indica queenslandica B.M. Olivera, 2004
Mitratoma insularum (FOSSIL) P.O. Jung, 1971 †
Turris intercancellata R.N. Kilburn, A.E. Fedosov& B.M. Olivera, 2012
Gemmula interpolata A.W.B. Powell, 1967
Turris intricata A.W.B. Powell, 1964
Gemmula iris (FOSSIL) E.W. Vredenburg, 1921 †
Polystira jaguaella Espinosa,Ortea & Moro, 2017
Cryptogemma japonica (T.A. Okutani, 1964)
Gemmula jefferyi (FOSSIL) Tracey †