Bittium impendens (C. Hedley, 1899)
Hemicerithium imperfectum (FOSSIL) (G.P. Deshayes, 1833 †)
Bittium incile R.B. Watson, 1897
Liocerithium incisum (G.B. II Sowerby, 1855)
Hemicerithium incommodum (FOSSIL) (G.P. Deshayes, 1864 †)
Clypeomorus inflata (J.R.C. Quoy& J.P. Gaimard, 1834)
Cerithium infranodatum (FOSSIL) E.M. Spieker, 1922 †
Cerithium insulatum (FOSSIL) W.H. Dall, 1916 †
Bittium insulsum H.B. Preston, 1908
Bittium intaminatum (FOSSIL) M. Yokoyama, 1931 †
Lirobittium interfossa (P.P. Carpenter, 1864)
Iddingsia intermedia (FOSSIL) K.V.W. Palmer, 1965 †
Cerithium intermedium E. Réquien, 1848
Liocerithium interruptum (K.T. Menke, 1851)
Cerithium interstriatum G.B. II Sowerby, 1855
Cerithium intradentatum (FOSSIL) (G.P. Deshayes, 1864 †)
Clypeomorus irrorata (A.A. Gould, 1849)
Cerithium isabellae (FOSSIL) C.J. Maury, 1912 †
Cerithium ivani A. Cecalupo, 2008
Argyropeza izekiana J.T. Kuroda, 1949
Bittium janthinulum (W. Kobelt, 1898)
Cerithium jekeliusi (FOSSIL) Svagrovsky, 1971 †
Lirobittium johnstonae (P. Bartsch, 1911)
Proclava jonkeri (FOSSIL) (Martin, 1879 †)
Alabina jordani Strong, 1938
Bittium jotum (L. Pfeiffer, 1848)
Bittium jucundum (FOSSIL) G.P. Deshayes, 1864 †
Liocerithium judithae A.M. Keen, 1971
Ochetoclava jungi (FOSSIL) B.M. Landau, F. Da Silva& S.M. Heitz, 2016 †
Pseudoaluco jussieui (FOSSIL) (Mayer-Eymar, 1877 †)
Rhinoclavis kachhensis (FOSSIL) E.W. Vredenburg, 1925 †
Cerithium kansasense (FOSSIL) Stanton, 1947 †
Proclava karangense (FOSSIL) (Martin, 1906 †)
Pseudovertagus kebelti (R.W. Dunker, 1877)
Clypeomorus kelirensis (FOSSIL) Martin, 1917 †