Praerosaria amoenacea (FOSSIL) L. Dolin & P. Lozouet,2004 †
Cypraeovula amphithales (J.C. Melvill, 1888)
Cypraeovula amphithales iutsuina L. Raybaudi Massilia,1995
Cypraeovula amphithales perdentata G. Raybaudi Massilia,1995
Notoluponia ampla (FOSSIL) (Johnson 1899 †)
Austrocypraea ampullacia (FOSSIL) (R. Tate, 1890 †)
Lyncina amygdalina (FOSSIL) (G.P. Deshayes, 1835 †)
Zonarina amygdalum (FOSSIL) (G.B. Brocchi 1814 †)
Archicypraea ancillaria (FOSSIL) L. Dolin & J.M. Pacaud,2009 †
Schilderia andegavensis (FOSSIL) J.L.M. Defrance, 1826 †
Muracypraea andersoni (FOSSIL) (W.M. Ingram, 1947 †)
Palmadusta androyensis M. Blöcher & F.Jr. Lorenz,1999
Palmadusta androyensis consanguinea M. Blöcher & F.Jr. Lorenz,1999
Palmadusta androyensis consanguinea vespertilio L. Bozzetti, 2014
Palmadusta androyensis ipacoyana L. Bozzetti, 2006
Cribrarula angelae F. Moretzsohn & M. Beals,2009
Erronea angioyorum G. Biraghi, 1978
Cypraea angliae (FOSSIL) Wood, 1848 †
Zonaria angolensis N.H. Odhner, 1923
Cypraea anguillana (FOSSIL) Cooke, 1919 †
Notocypraea angustata (J.F. Gmelin, 1791)
Umbilia angustior (FOSSIL) (G.B. Pritchard, 1896 †)
Muracypraea angustirima (FOSSIL) (E.M. Spieker, 1922 †)
Bernaya angystoma (FOSSIL) (G.P. Deshayes, 1835 †)
Conocypraea anhaltina (FOSSIL) (Giebel, 1864 †)
Pseudozonaria annettae (W.H. Dall, 1909)
Pseudozonaria annettae aequinoctialis (F.A. Schilder, 1933)
Monetaria annulus (C. Linnaeus, 1758)
Monetaria annulus alboguttata L. Bozzetti, 2015
Monetaria annulus camelorum (A. de Rochebrune, 1884)
Monetaria annulus noumensis (É. Marie, 1869)
Monetaria annulus sublitorea F.Jr. Lorenz, 1997
Subepona antiqua (FOSSIL) (J.B.P.A. Lamarck,1810 †)
Loxacypraea apalachicolae (FOSSIL) W.M. Ingram, 1948 †
Fossacypraea apiceproducta (FOSSIL) (A.E.M. Cossmann& M.A. Peyrot, 1923 †)