Phasmoconus andamanensis (E.A. Smith, 1879)
Turriconus andremenezi (B.M. Olivera & J.S. Biggs,2010)
Floraconus anemone (J.B.P.A. Lamarck, 1810)
Floraconus anemone novaehollandiae (A. Adams, 1854)
Conus aneuretos (FOSSIL) R.C. Hoerle, 1976 †
Plicaustraconus angasi (G.W. Tryon, 1884)
Phasmoconus angioiorum (D. Röckel& R.G. Moolenbeek, 1992)
Conus angosturis (FOSSIL) A.A. Olsson, 1964 †
Hemiconus angulifer (FOSSIL) Cossmann & Pissarro,1901 †
Conus anningae (FOSSIL) J.R. Hendricks, 2015 †
Rhizoconus anosyensis (L. Bozzetti, 2008)
Africonus anthonyi E.J. Petuch, 1975
Conilithes antidiluvianus (FOSSIL) (J.G. Bruguière, 1792 †)
Lithoconus antiquus (FOSSIL) (J.B.P.A. Lamarck,1810 †)
Africonus antoniaensis T. Cossignani & R. Fiadeiro,2014
Africonus antonioi T. Cossignani, 2014
Africonus antoniomonteiroi (E. Rolán, 1990)
Conus apenninicus (FOSSIL) Bronn, 1838 †
Conasprella aphrodite (E.J. Petuch, 1979)
Floraconus aplustre (L.A. Reeve, 1843)
Conus aquensis (FOSSIL) Orbigny, 1852 †
Conus aquitanicus (FOSSIL) C. Mayer, 1858 †
Conus aquoreus (FOSSIL) R.C. Hoerle, 1976 †
Pionoconus arafurensis E. Monnier, L. Limpalaër& A. Robin, 2013
Conus araneosus J. Lightfoot, 1786
Conus araneosus nicobaricus C.H. Hwassin J.G. Bruguière, 1792
Purpuriconus arangoi (H. Sarasúa, 1977)
Conus aratus (FOSSIL) Gabb, 1873 †
Conasprella arawak (E.J. Petuch & B.W. Myers,2014)
Tenorioconus archon (W.J. Broderip, 1833)
Conasprella arcuata (W.J. Broderip& G.B. I Sowerby, 1829)
Conus arcuatus (FOSSIL) W.J. Broderip & Sowerby,1829 †
Ketyconus ardisiaceus (L.C. Kiener, 1850)
Puncticulis arenatus (C.H. Hwassin J.G. Bruguière, 1792)
Conus argillicola (FOSSIL) Eichwald, 1830 †