Sciteconus mozambicus (C.H. Hwassin J.G. Bruguière, 1792)
Sciteconus mpenjatiensis S.G. Veldsman, 2016
Conus mucronatolaevis (FOSSIL) F. Sacco, 1893 †
Conus mucronatolaevis globospira (FOSSIL) F. Sacco, 1893 †
Phasmoconus mucronatus (L.A. Reeve, 1843)
Phasmoconus mucronatus segondensis W.J. Fenzan, 2008
Phasmoconus mulderi H.C. Fulton, 1936
Conus multibandatus L. Bozzetti, 2017
Conasprelloides multiliratus (FOSSIL) (A.A. Olsson, 1922 †)
Dauciconus multiliratus (FOSSIL) (Böse, 1906 †)
Lividoconus muriculatus (G.B. I Sowerby, 1833)
Conus murravianus (FOSSIL) Tate, 1890 †
Gladioconus mus (C.H. Hwassin J.G. Bruguière, 1792)
Conus musaensis (FOSSIL) A.A. Olsson, 1922 †
Harmoniconus musicus (C.H. Hwassin J.G. Bruguière, 1792)
Rhizoconus mustelinus (C.H. Hwassin J.G. Bruguière, 1792)
Lithoconus myaukmigoensis (FOSSIL) E.W. Vredenburg, 1921 †
Sciteconus nahoonensis (S.G. Veldsman, 2016)
Endemoconus nakagawai (FOSSIL) Noda, 1980 †
Rhizoconus namocanus (C.H. Hwassin J.G. Bruguière, 1792)
Conus nannus (FOSSIL) W.P. Woodring, 1928 †
Harmoniconus nanus (G.B. II Sowerby, 1833)
Varioconus naranjus (H. Trovão, 1975)
Darioconus natalaurantius S.G. Veldsman, 2013
Nataliconus natalis (G.B. II Sowerby, 1858)
Africonus navarroi (E. Rolán, 1986)
Varioconus negroides (S.D. Kaicher, 1977)
Africonus nelsonandradoi T. Cossignani & R. Fiadeiro,2015
Africonus nelsontiagoi T. Cossignani & R. Fiadeiro,2014
Conus nemorideditus (FOSSIL) C.J. Maury, 1910 †
Profundiconus neocaledonicus M.J. Tenorio & Castelin,2016
Graphiconus neptunus (L.A. Reeve, 1843)
Dendroconus neugeboreni (FOSSIL) (R. Hoernes & Aulinger,1879 †)
Lithoconus neumayri (FOSSIL) Hoernes & Auinger, 1879 †
Leptoconus newtoni (FOSSIL) Harris, 1897 †