Timoclea imbricata (G.B. II Sowerby, 1853)
Pitar imitabilis (FOSSIL) (T.A. Conrad, 1848 †)
Callista impar (J.B.P.A. Lamarck, 1818)
Dosinia imparistriata (FOSSIL) R. Tate, 1887 †
Raina imperiosa (FOSSIL) J. Marwick, 1929 †
Macrocallista inca (FOSSIL) A.A. Olsson, 1928 †
Artena inca (FOSSIL) A.A. Olsson, 1939 †
Marcia incerta (FOSSIL) (Dufour, 1881 †)
Dosinia incisa (L.A. Reeve, 1850)
Pitar inconspicuus (W.J. Broderip& G.B. I Sowerby, 1835)
Costellipitar inconstans (C. Hedley, 1923)
Amiantis incrassata (FOSSIL) (Sowerby, 1817 †)
Costellipitar indecoroides (M. Yokoyama, 1928)
Pitar indecorus (R.A. Philippi, 1848)
Dosinia indica E. Fischer-Piette& B. Métivier, 1971
Meretrix indica (FOSSIL) Cox, 1930 †
Granicorium indutum C. Hedley, 1906
Tivela inezana (FOSSIL) T.A. Conrad, 1849 †
Timoclea infans (E.A. Smith, 1885)
Chione inflata (P.P. King & W.J. Broderip,1832)
Eurhomalea inflata (FOSSIL) Zinsmeister, 1984 †
Paphia inflata (G.P. Deshayes, 1853)
Pseudopisidum inflata (FOSSIL) Tashiro & Kozai 1989 †
Pitar inflatus (G.B. II Sowerby, 1851)
Clementia inoceriformis (FOSSIL) (Wagner, 1839 †)
Venus inopinata (FOSSIL) G.P. Deshayes, 1857 †
Petricola insignis (G.P. Deshayes, 1854)
Venus insula (FOSSIL) L.H. Hupé, 1854 †
Gafrarium insulare (FOSSIL) W.H. Dall & C.T. Simpson,1901 †
Gouldia insularis (W.H. Dall & C.T. Simpson,1901)
Pelecyora insularum (E. Fischer-Piette& D. Delmas, 1967)
Puberella intapurpurea (T.A. Conrad, 1849)
Meretrix intercalaris (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1910 †
Circe intermedia L.A. Reeve, 1863
Irus interstriatus (G.B. II Sowerby, 1854)