Trochus fultoni (J.C. Melvill, 1898)
Trochus funiculosus (FOSSIL) E.A.L. Kittl, 1891 †
Nanula galbina (C. Hedley & W.L. May,1908)
Diloma galei (FOSSIL) Burnett, 1998 †
Diloma galiciense (FOSSIL) C.A.à Bergen, 1994 †
Stomatella gattegnoi G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Vanitrochus geertsi G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Clanculus gemmulifer H.A. Pilsbry, 1901
Clanculus gemmulifer pallidus H.A. Pilsbry, 1903
Halistylus genecoani J.H. McLean, 1984
Jujubinus geographicus G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Monodonta gibbula K.H.J. Thiele, 1925
Umbonium giganteum (R.P. Lesson, 1831)
Jujubinus gilberti (R.P. Montrouzierin P. Fischer, 1878)
Ethalia gilchristae D.G. Herbert, 1992
Monodonta glabratum A.A. Gould, 1861
Gibbula glandula (FOSSIL) T.A. Conrad, 1866 †
Trochus glandulus (FOSSIL) Laube, 1869 †
Ethminolia glaphyrella (J.C. Melvill & R. Standen,1895)
Lirularia globularis (L. von Schrenck, 1863)
Monilea gloriola (T. Iredale, 1929)
Gibbula glyphidospira (FOSSIL) A.E.M. Cossmann& M.A. Peyrot, 1916 †
Stomatella godeffroyi R.W. Dunker, 1871
Parvitomella gofasi (FOSSIL) A. Kaim, 2004 †
Umbonium goldfussi (FOSSIL) Münster, 1841 †
Jujubinus goniobasis T.A. de M. Monterosato
Callumbonella gorgonorum (P. Dautzenberg& H. Fischer, 1906)
Priotrochus goudoti (P. Fischer, 1878)
Trochus gouetensis (FOSSIL) A.E.M. Cossmann, 1903 †
Coelotrochus gracilis (FOSSIL) (C.R. Laws, 1936 †)
Pseudominolia gradata (G.B. III Sowerby, 1895)
Clanculus granifer (FOSSIL) P. Doderleinin D. Pantanelli, 1888 †
Clanculus granoliratus T.A. de M. Monterosato,1889
Stomatella granosa A. Lambert, 1874
Clanculus granti C. Hedley, 1907