Cominella huttoni W. Kobelt
Penion huttoni (FOSSIL) (L.C. King, 1934 †)
Lussivolutopsius hydractiniferus Y.I. Kantor, 1983
Buccinum hydrophanum A. Hancock, 1846
Latisipho hypolispus (W.H. Dall, 1891)
Engina idosia (P.L. Duclos, 1835)
Pisania ignea (J.F. Gmelin, 1791)
Engina ignicula K. Fraussen, 2004
Afer ignifer (K. Fraussen & A. Trencart,2008)
Aidemofusus ignotus A. Kosyan & Y.I. Kantor,2013
Zelandiella imitatrix (FOSSIL) Finlay & J. Marwick,1937 †
Aeneator imperator (FOSSIL) L. C. King, 1933 †
Penion imperfectus (FOSSIL) (Powell, 1947 †)
Pollia imprimelata K. Fraussen & J. Rosado,2011
Gemophos inca (A.V.M.D. D'Orbigny,1839)
Pollia incarnata (G.P. Deshayes in E.S.J.L. de Laborde& M. Linant, 1834)
Cominella incisa (FOSSIL) (F.W. Hutton, 1885 †)
Beringius indentatus W.H. Dall, 1919
Kelletia indica (FOSSIL) A. Dey, 1961 †
Manaria indomaris Fraussen & Stahlschmidt,2016
Euthria inesae K. Fraussen, A. Monteiro& F. Swinnen, 2012
Metula inflata (R.S. Houbrick, 1984)
Phaenomenella inflata (T. Shikama, 1971)
Parvisipho infraeocaenicus (FOSSIL) A.E.M. Cossmann, 1889 †
Bathydomus ingolfiana (L.S.R. Bergh, 1900)
Falsimohnia innocens (E.A. Smith, 1907)
Chauvetia inopinata B.M. Landau, F. Da Silva& G.J. Vermeij, 2015
Ptychosyca inornata (FOSSIL) (W.M. Gabb, 1876 †)
Cancellopollia insculpta (G.B. III Sowerby, 1900)
Chauvetia insignis (M.E.J. Bucquoy, P. Dautzenberg& G.F. Dollfus, 1882)
Euthria insulabris K. Fraussen & E. Rolán,2003
Phaenomenella insulapratasensis (T.A. Okutani & T.C. Lan,1994)
Cavineptunea insularis (C. Fernández, 1977)
Neptunea insularis (W.H. Dall, 1895)
Penion interjunctus (FOSSIL) (Finlay, 1930 †)