Borsonia lineata (FOSSIL) F.E. Edwards, 1861 †
Darbya lira P. Bartsch, 1934
Zemacies lividorupis (FOSSIL) C.R. Laws, 1935 †
Aphanitoma locardi (A.R.J.B. Bavay, 1906)
Drilliola loprestiana (P. Calcara, 1841)
Tomopleura ludbrookae (FOSSIL) (A.W.B. Powell, 1944 †)
Cordieria ludoviciana (FOSSIL) Vaughan †
Bathytoma luehdorfi (C.E. Lischke, 1872)
Genota lyra (FOSSIL) (G.P. Deshayes †)
Pulsarella madiunensis (FOSSIL) (K. Martin, 1906 †)
Typhlomangelia magna (FOSSIL) (P.A. Maxwell, 1969 †)
Tomopleura makemonos (F.P. Jousseaume, 1883)
Suavodrillia makiyamai (FOSSIL) Y. Otuka, 1934 †
Typhlomangelia maldivica A.V. Sysoev, 1996
Drilliola mangaoparia (FOSSIL) (A.G. Beu, 1970 †)
Drilliola maoria (FOSSIL) (Powell, 1942 †)
Genota marchandi M. Pin, 1996
Zemacies marginalis (FOSSIL) (W.B. Marshall, 1919 †)
Aphanitoma marginata (Nordsieck, 1972)
Cordieria marginata G.P. Deshayes, 1865
Bathytoma marieana (FOSSIL) T.H. Aldrich, 1911 †
Aphanitoma mariottinii C. Smriglio, S. Rufini& J.M. Martìn Perez, 2001
Awateria marwicki (FOSSIL) A.W.B. Powell, 1942 †
Borsonella maxwelli (FOSSIL) C. Nielsen, 2003 †
Bathytoma media (FOSSIL) (J. Marwick, 1931 †)
Bathytoma mediocarinata (FOSSIL) M. Yokoyama, 1920 †
Drilliola megalacme (E.R. Sykes, 1906)
Maoritomella megalacme R.N. Kilburn, 1986
Asthenotoma meneghinii (FOSSIL) (C. Mayer, 1868 †)
Borsonella merriami (R. Arnold, 1903)
Asthenotoma microcheila (FOSSIL) (F.E. Edwards, 1861 †)
Borsonia millardi (FOSSIL) (M. Rouault, 1849 †)
Cordieria minor (FOSSIL) G.P. Deshayes, 1865 †
Awateria miocenica (FOSSIL) P. Vella, 1954 †
Bathytoma mitchelsoni (FOSSIL) Powell, 1935 †