Tivela geijskesi C.O. Van Regteren Altena,1968
Gemma gemma (J.G. Totten, 1834)
Venerupis geographica (J.F. Gmelin, 1791)
Tapes geographicus (J.H. Chemnitz, 1784)
Tapes geographicus (FOSSIL) (C. Linnaeus, 1758 †)
Transennella gerrardi R.T. Abbott, 1958
Venus geslini (FOSSIL) G.P. Deshayes, 1857 †
Sunetta gibberula (FOSSIL) (R. Tate, 1887 †)
Saxidomus gigantea (G.P. Deshayes, 1839)
Pelecyora gigas (FOSSIL) (J.B.P.A. Lamarck,1818 †)
Placamen gilvum (R.A. Philippi, 1849)
Antigona gladstonensis (G.F. Angas, 1872)
Venerupis glandina (J.B.P.A. Lamarck, 1818)
Dosinia glauca (L.A. Reeve, 1850)
Nitidavenus globulosa (FOSSIL) (G.P. Deshayes, 1825 †)
Chione glyptocyma (FOSSIL) W.H. Dall, 1903 †
Chionopsis gnidia (W.J. Broderip& G.B. I Sowerby, 1829)
Circenita goodallioides (FOSSIL) (A.E.M. Cossmann, 1886 †)
Parvicirce goodalloides (FOSSIL) (Cossmann 1886) †
Lioconcha gordoni (E.A. Smith, 1885)
Callista gotthardi R.W. Dunker, 1865
Gomphina goudi Thach, 2016
Petricolaria gracilis (G.P. Deshayes, 1853)
Austrocardilanx gracilis (FOSSIL) Gardner, 2005 †
Clementia gracillima P.P. Carpenter, 1857
Antigona granosa (FOSSIL) Sowerby, 1840 †
Leukoma granulata (J.F. Gmelin, 1791)
Kyrina granulifera (G.B. II Sowerby, 1852)
Leukoma grata (T. Say, 1831)
Leukoma grata fuscolineata (G.B. I Sowerby, 1835)
Dosinia grata G.P. Deshayes, 1853
Callista grata (G.P. Deshayes, 1853)
Placamen gravescens (K.T. Menke, 1843)
Egesta grayi (FOSSIL) (W.H. Dall, 1900 †)
Macrocallista greeni (FOSSIL) Ward & B.W. Blackwelder,1987 †