Turris lunulifera gradata (FOSSIL) Sokolov †
Pleurotoma lutescens L.A. Reeve, 1846
Gemmula luzonica (A.W.B. Powell, 1964)
Gemmula machapoorensis (FOSSIL) C.J. Maury, 1925 †
Amuletum macnairyensis (FOSSIL) B. Wade, 1926 †
Amuletum macnairyensis torquatum (FOSSIL) N.F. Sohl, 1964 †
Lophiotoma madagascarensis B.M. Olivera, 2004
Gemmula margaritata (FOSSIL) (P. Marshall, 1919 †)
Chesasyrinx mariana (FOSSIL) (Martin, 1904 †)
Turris marmorata J.B.P.A. Lamarck, 1816
Iotyrris marquesensis A.V. Sysoev, 2002
Gemmula martini (J.J. Tesch, 1915)
Javaclavus martini (FOSSIL) T. Shuto, 1980 †
Cosmasyrinx marwicki (FOSSIL) A.G. Beu, 1970 †
Mariaturricula marylandica (FOSSIL) (T.A. Conrad, 1841 †)
Coronia mediavia (FOSSIL) (G.F. Harris, 1896 †)
Gemmula mekranica (FOSSIL) E.W. Vredenburg, 1925 †
Gemmula mellevillei (FOSSIL) A.E.M. Cossmann, 1889 †
Gemmula metableta (FOSSIL) A.E.M. Cossmann, 1889 †
Gemmula mexa (FOSSIL) Cooke, 1928 †
Pleurotoma microcerata L. de Folin, 1879
Gemmula microscelida (W.H. Dall, 1895)
Xenuroturris millepunctata (Sowerby, 1909)
Eopleurotoma mixta (FOSSIL) F.E. Edwards †
Lucerapex molengraaffi (J.J. Tesch, 1915)
Eopleurotoma molineuxae (FOSSIL) Garvie, 2013 †
Gemmula monerma (FOSSIL) (F.E. Edwards, 1861 †)
Cosmasyrinx monilifera (FOSSIL) J. Marwick, 1931 †
Gemmula monilifera (W.H. Pease, 1860)
Gemmula monilifera gallica (FOSSIL) M.A. Peyrot, 1931 †
Eosurcula moorei (FOSSIL) (W.M. Gabb, 1860 †)
Eopleurotoma multicostata (FOSSIL) (G.P. Deshayes, 1834 †)
Epalxis multigyrata (FOSSIL) (G.P. Deshayes, 1865 †)
Turris multigyrata (FOSSIL) A.E.M. Cossmann, 1906 †
Turris munizi J.L. Vera-Peláez, R. Vega-Luz& M.C. Lozano, 2000