Cylinder abbas (C.H. Hwassin J.G. Bruguière, 1792)
Miliariconus abbreviatus (L.A. Reeve, 1843)
Poremskiconus abrolhosensis (E.J. Petuch, 1987)
Conus abruptus (FOSSIL) P. Marshall, 1918 †
Conus academicus (FOSSIL) Dall & Ochsner, 1928 †
Pionoconus achatinus (J.F. Gmelin, 1791)
Conus acolus (FOSSIL) W.P. Woodring, 1970 †
Conus acrotholoides (FOSSIL) R. Tate, 1890 †
Fusiconus aculeiformis (L.A. Reeve, 1844)
Conus acuminatus (FOSSIL) S. Borson, 1820 †
Turriconus acutangulus (J.B.P.A. Lamarck, 1810)
Turriconus acutangulus funiculifer (FOSSIL) (A.E.M. Cossmann, 1886 †)
Conus acutus (FOSSIL) Deshayes, 1865 †
Plicaustraconus adami E. Wils, 1988
Textilia adamsonii (W.J. Broderip, 1836)
Floraconus adelaidae (FOSSIL) Ludbrook, 1958 †
Conus admirationis G.T. Poppe & S.P. Tagaro,2015
Contraconus adversarius (FOSSIL) (T.A. Conrad, 1840 †)
Plicaustraconus advertex (T.A. Garrard, 1961)
Conus aegilops (FOSSIL) Anderson & Hanna, 1925 †
Lithoconus aegyptiacus (FOSSIL) P. Oppenheim, 1906 †
Conus aemulator (FOSSIL) J. Brown & H.A. Pilsbry,1911 †
Varioconus aemulus (L.A. Reeve, 1844)
Conus affinis (FOSSIL) Martin, 1879 †
Varioconus africanus (L.C. Kiener, 1848)
Conasprella ageri (FOSSIL) J.R. Hendricks, 2015 †
Conus aguilerai (FOSSIL) Engerrand & Urbina,1910 †
Conus aito M. Rabiller & G. Richard,2014
Phasmoconus alabaster (L.A. Reeve, 1849)
Purpuriconus alainallaryi (L. Bozzetti & E. Monnier,2009)
Conus alaquaensis (FOSSIL) W.C. Mansfield, 1935 †
Conus albellus D. Röckel & W. Korn, 1990
Conus albidus J.S. Schröter, 1803
Conasprella albobrunnea L. Bozzetti, 2017
Varioconus albuquerquei (H. Trovão, 1978)