Conus calvimontanus (FOSSIL) Deshayes, 1865 †
Conus canaliculatus (FOSSIL) Brocchi, 1814 †
Conus candidus I. von Born, 1778
Conus carcarensis (FOSSIL) F. Sacco, 1893 †
Conus caroli (FOSSIL) Fucini, 1891 †
Conus cheribonensis (FOSSIL) Martin, 1895 †
Conus chipolanus (FOSSIL) W.H. Dall, 1896 †
Conus cinctus J.H.F. Link, 1807
Conus cinereus J.S. Schröter, 1803
Conus cingulatus (FOSSIL) von Schlotheim, 1820 †
Conus clavatulus (FOSSIL) d'Orbigny, 1852 †
Conus clavatulus (FOSSIL) Orbigny, 1852 †
Conus clavatus (FOSSIL) J.B.P.A. Lamarck, 1810 †
Conus claviformis (FOSSIL) Speyer, 1863 †
Conus clavus (FOSSIL) C. Linnaeus, 1758 †
Conus colombiensis (FOSSIL) N.E. Weisbord, 1929 †
Conus coloratus (FOSSIL) Defrance, 1818 †
Conus comatosaeformis (FOSSIL) M. Yokoyama, 1928 †
Conus complicatus (FOSSIL) R. Tate, 1890 †
Conus compressus G.B. II Sowerby, 1866
Conus concinnus (FOSSIL) J. de C. Sowerby, 1821 †
Conus conica (FOSSIL) Martin, 1881 †
Conus conotruncus (FOSSIL) A. De Gregorio, 1880 †
Conus consobrinus (FOSSIL) Sowerby, 1850 †
Conus convexus (FOSSIL) Marshall, 1918 †
Conus cookei (FOSSIL) W.H. Dall, 1916 †
Conus coralloides G. Perry, 1811
Conus corculum (FOSSIL) J. de C. Sowerby, 1841 †
Conus cormacki (FOSSIL) Harbison, 1944 †
Conus corynetes (FOSSIL) Fontannes, 1880 †
Conus costatus (FOSSIL) H.S. Holten, 1802 †
Conus costatus J.F. Gmelin, 1791
Conus costellatus (FOSSIL) Grateloup, 1835 †
Conus cowlitzensis (FOSSIL) Weaver, 1912 †
Conus crenospiratus (FOSSIL) Anderson, 1929 †