Darioconus crocatus pseudomagister (Allary & T. Cossignani,2016)
Darioconus crocatus thailandis A.J. Da Motta, 1978
Africonus crotchii (L.A. Reeve, 1849)
Conus cruzianus (FOSSIL) Dall, 1890 †
Hemiconus cryptoconoides (FOSSIL) Cossmann & Pissarro,1901 †
Conasprella culebrana (E.J. Petuch, D.P. Berschauer& Poremski, 2016)
Rhizoconus cumingii (L.A. Reeve, 1848)
Atlanticonus cuna (E.J. Petuch, 1998)
Africonus cuneolus (L.A. Reeve, 1843)
Africonus cuneolus algodoero (L.A. Reeve, 1844)
Africonus cuneolus santamaria (L.A. Reeve, 1844)
Tenorioconus curassaviensis (C.H. Hwassin J.G. Bruguière, 1792)
Africonus curralensis (E. Rolán, 1986)
Chelyconus curtus (FOSSIL) Erunal-Erentoz, 1958 †
Conus cuspidatus (FOSSIL) R. Tate, 1890 †
Gastridium cuvieri (J.C.H. Crosse, 1858)
Austroconus cyanostoma (A. Adams, 1855)
Mitraconus cylindraceus (W.J. Broderip& G.B. I Sowerby, 1830)
Dendroconus daciae (FOSSIL) Hoernes & Auinger, 1879 †
Cylinder dalli (R.E.C. Stearns, 1873)
Stephanoconus dalpiazi (FOSSIL) Dainelli, 1915 †
Conasprella damasoi (T. Cossignani, 2007)
Conasprella damasomonteiroi (E.J. Petuch & B.W. Myers,2014)
Africonus damioi T. Cossignani & R. Fiadeiro,2015
Africonus damottai (H. Trovão, 1979)
Africonus damottai galeao E. Rolán, 1990
Phasmoconus dampierensis (H.E. Coomans& R.M. Filmer, 1985)
Conus dangdami Thach, 2017
Boreosiphopsis danicus (FOSSIL) (Schnetler, 1985 †)
Nitidoconus danilai (D. Röckel & W. Korn,1990)
Conus daphne A. Boivin, 1864
Embrikena darkini (D. Röckel, W. Korn& G. Richard, 1993)
Dauciconus daucus (C.H. Hwassin J.G. Bruguière, 1792)
Dauciconus daucus riosi (E.J. Petuch, 1986)
Boucheticonus dayriti (D. Röckel & A.J. Da Motta,1983)