Mitra margaritatus G.T. Poppe, S.P. Tagaro& R. Salisbury, 2009
Scabricola mariae (A. Adams, 1853)
Mitra mariana (FOSSIL) Martin, 1904 †
Mitra marmorea H. Turner, 2007
Mitra marrowi H. Turner, 2001
Scabricola martini G.T. Poppe & S.P. Tagaro,2006
Mitra martini (FOSSIL) R.A. Philippi, 1887 †
Mitra marylandica (FOSSIL) Clark, 1895 †
Ziba maui (E.A. Kay, 1979)
Subcancilla mauryae (FOSSIL) (Anderson, 1929 †)
Mitraria megahidi (FOSSIL) Abbass, 1967 †
Cancilla meimiaoae Huang & Salisbury, 2017
Cancilla menkrawitensis (FOSSIL) C. Beets, 1941 †
Cancilla meyeriana R. Salisbury, 1992
Subcancilla midwayensis S. Kosuge, 1979
Fusimitra millingtoni (FOSSIL) (T.A. Conrad in Wailes,1854 †)
Mitra mitra (C. Linnaeus, 1758)
Mitra mitrodita (FOSSIL) J. Gardner, 1937 †
Pterygia morrisoni M.P. Marrow, 2016
Tiara mosaensis (FOSSIL) Abbass, 1967 †
Dibaphus multiplicata (W.H. Pease, 1865)
Mitra multisulcata (FOSSIL) G.F. Harris, 1897 †
Nebularia muricata (W.J. Broderip, 1836)
Mitra nadayaoi L. Bozzetti, 1997
Strigatella nana (L.A. Reeve, 1844)
Swainsonia newcombii (W.H. Pease, 1869)
Swainsonia newcombii irisae R. Le Béon, 2014
Mitra nigra (J.F. Gmelin, 1791)
Eumitra nitens (FOSSIL) (Marshall, 1918 †)
Mitra nivea (W.J. Broderip, 1836)
Mitra nodulosa (J.F. Gmelin, 1791)
Mitra nubila (J.F. Gmelin, 1791)
Mitra nubila brettinghami E.A. Smith, 1906
Mitra nubila hawaiiensis E.A. Kay, 1979
Mitra nubila lamarcki G.P. Deshayes, 1832