• Conus cloveri Walls, 1978
• Conus cocceus Reeve, 1844
• Conus coccineus Gmelin, 1791
• Conus coelinae Crosse, 1858
• Conus coffeae Gmelin, 1791
• Conus collisus Reeve, 1849
• Conus colmani Röckel & Korn, 1990
• Conus colombi (Monnier & Limpalaër, 2012)
• Conus coltrorum (Petuch & R.F.Myers, 2014)
• Conus conco Puillandre, Stöcklin, Favreau, Bianchi, Perret, Rivasseau, Limpalaër, Monnier & Bouchet, 2015
• Conus consors G.B.Sowerby I, 1833
• Conus corallinus Kiener, 1847
• Conus corbieri Blöcher, 1994
• Conus cordigera G.B.Sowerby II, 1866
• Conus coronatus Gmelin, 1791
• Conus crocatus Lamarck, 1810
• Conus crotchii Reeve, 1849
• Conus cumingii Reeve, 1848
• Conus cuneolus Reeve, 1843
• Conus curassaviensis Hwass, 1792
• Conus cuvieri Crosse, 1858
• Conus cyanostoma A.Adams, 1854
• Conus cylindraceus Broderip & G.B.Sowerby I, 1830
• Conus dalli Stearns, 1873
• Conus damottai Trovão, 1979
• Conus dampierensis Coomans & Filmer, 1985
• Conus darkini Röckel, Korn & Richard, 1993
• Conus daucus Hwass, 1792
• Conus dayriti Röckel & da Motta, 1983
• Conus decoratus Röckel, Rolán & Monteiro, 1980
• Conus dedonderi (Goethaels & D.Monsecour, 2013)
• Conus delanoyae Trovão, 1979
• Conus desidiosus A.Adams, 1854
• Conus diadema G.B.Sowerby I, 1834
• Conus diminutus Trovão & Rolán, 1986
• Conus dispar G.B.Sowerby I, 1833
• Conus distans Hwass, 1792
• Conus dominicanus Hwass, 1792
• Conus dorotheae Monnier & Limpalaër, 2010
• Conus duffyi Petuch, 1992
• Conus dusaveli (H.Adams, 1872)
• Conus ebraeus Linnaeus, 1758
• Conus eburneus Hwass, 1792
• Conus echinophilus (Petuch, 1975)
• Conus echo Lauer, 1989
• Conus edaphus Dall, 1910
• Conus eldredi J.P.E.Morrison, 1955
• Conus elegans Sowerby, 1895
• Conus emaciatus Reeve, 1849
• Conus encaustus Kiener, 1845