Neptunea meridionalis A.G. Smith, 1971
Savatieria meridionalis (E.A. Smith, 1881)
Pollia merignacensis (FOSSIL) M.A. Peyrot, 1924 †
Crassicantharus metallicus K. Fraussen& P. Stahlschmidt, 2015
Metula metula (R.B. Hinds, 1844)
Metula metula mitrella (A. Adams & L.A. Reeve,1850)
Metula metulina J.T. Kuroda & T. Habe,1971
Metula metulina chetyzecchiae L. Bozzetti, 1992
Hesperisternia miamiensis (FOSSIL) E.J. Petuch, 1991 †
Pareuthria michaelseni (H. Strebel, 1905)
Retimohnia micra (W.H. Dall, 1907)
Buccinum micropoma G.A.W. Thorson, 1944
Volutopsius middendorffi (W.H. Dall, 1891)
Buccinum middendorfii T.A. Verkrüzen, 1882
Siphonalia mikado J.C. Melvill, 1888
Siphonalia mikado makiyamai (FOSSIL) F.S. MacNeil, 1960 †
Bathyancistrolepis mikasaensis (FOSSIL) Amano & Oleinik, 2016 †
Ameranna milleri (G.W. Nowell-Usticke,1959)
Loscotaphrus minbuensis (FOSSIL) (Noetling, 1895 †)
Lacinia minbuensis (FOSSIL) E.W. Vredenburg, 1921 †
Chauvetia minima (G. Montagu, 1803)
Colus minimus (FOSSIL) Harmer †
Colus minor (W.H. Dall, 1925)
Euthria minor L.M.D. Bellardi, 1872
Falsimohnia minor (H. Strebel, 1908)
Neptunea minor Y. Hirase, 1908
Metula minor A.A. Olsson & F.M. Bayer,1972
Janiopsis minor (FOSSIL) (G.P. Deshayes, 1864 †)
Ameranna minuscula (FOSSIL) B.M. Landau& G.J. Vermeij, 2012 †
Daphnobela miocaenica (FOSSIL) Gürs, 2003 †
Metula miocenica (FOSSIL) G. Schmelz & R. Portell,2003 †
Pangoa mira (FOSSIL) J. Marwick, 1931 †
Crassicantharus mirabelkarinae T. Cossignani, 2015
Pollia mirabelmaxcencei T. Cossignani, 2017
Cominella mirabilis (A.W.B. Powell, 1929)