Bivetopsia haemastoma (G.B. I Sowerby, 1832)
Admete haini H. Numanami, 1996
Bonellitia hampdenensis (FOSSIL) P. Marshall & R. Murdoch,1923 †
Brocchinia harasewychi J.C.N. Barros& S.F.B. de Lima, 2007
Trigonostoma harasewychi (FOSSIL) E.J. Petuch, 1994 †
Scalptia harmulensis A. Verhecken & Van Laethem,2015
Cancellaria harpiformis (FOSSIL) H.A. Pilsbry& A.A. Olsson, 1941 †
Nothoadmete harpovoluta (A.W.B. Powell, 1957)
Cancellaria harrisi (FOSSIL) C.J. Maury, 1917 †
Cancellaria harzhauseri (FOSSIL) B.M. Landau & al., 2012 †
Microsveltia haswelli (T.A. Garrard, 1975)
Scalptia haweraensis (FOSSIL) (C.R. Laws, 1940 †)
Bivetopsia herberti (FOSSIL) B.M. Landau & al., 2007 †
Plesiotriton hillegondae (FOSSIL) (K. Martin, 1914 †)
Solatia hirta (FOSSIL) (G.B. Brocchi, 1814 †)
Cancellaria hodsonae (FOSSIL) B.M. Landau & R.E. Petit,1997 †
Extractrix hoerlei (FOSSIL) A.A. Olsson, 1967 †
Admete hukuiensis S. Nomura, 1940
Cancellaria hukusimana (FOSSIL) S. Nomura & K.M. Hatai,1936 †
Microsveltia humaboni A. Verhecken, 2011
Unitas hypermeces (FOSSIL) (A.E.M. Cossmann, 1896 †)
Scalptia hystrix (L.A. Reeve, 1856)
Trigonostoma imbricatum (FOSSIL) (R. Hoernes, 1856 †)
Cancellaria indentata G.B. I Sowerby, 1832
Trigonostoma indicum (FOSSIL) E.W. Vredenburg, 1925 †
Tritonoharpa indoceana A.G. Beu & P.A. Maxwell,1987
Sveltia inermis (FOSSIL) (G.G. Pusch, 1837 †)
Sveltia inermis gallica M.A. Peyrot, 1925
Olivia inflata (FOSSIL) F. Traub, 1979 †
Iphinopsis inflata (H.B.S. Friele, 1879)
Unitas infraeocaenica (FOSSIL) (A.E.M. Cossmann, 1889 †)
Sveltia inquilinus (FOSSIL) P.O. Jung & R.E. Petit,1990 †
Ventrilia insulare (FOSSIL) H.A. Pilsbry & Johnson,1917 †
Cancellaria io W.H. Dall, 1896
Trigonostoma iota T.A. Garrard, 1975