Latirus maculatus (L.A. Reeve, 1847)
Latirus maculatus concinna C.M. Tapparone-Canefri,1880
Amiantofusus maestratii K. Fraussen, Y.I. Kantor& R. Hadorn, 2007
Fusinus magdalenensis (FOSSIL) Anderson, 1929 †
Fasciolaria magna (H.E. Anton, 1838)
Fusinus magnapex L.H. Poorman, 1981
Aurantilaria magnospinata (FOSSIL) B.M. Landau& G.J. Vermeij, 2014 †
Drilluta major (FOSSIL) B. Wade, 1916 †
Fusinus malhaensis R. Hadorn, K. Fraussen& I.P. Bondarev, 2001
Peristernia malvastoma M. Lussi, 2014
Latirus mannophorus (J.C. Melvill, 1891)
Filifusus manuelae (L. Bozzetti, 2008)
Fusinus marcusi R. Hadorn & B. Rogers,2000
Fusinus margaritae G. Buzzurro & P. Russo,2007
Lirosoma mariana (FOSSIL) E.J. Petuch, 1988 †
Fusinus mariaodetae Petuch & Berschauer, 2016
Benimakia mariei (J.C.H. Crosse, 1869)
Fusinus marisinicus P. Callomon & M.A. Snyder,2009
Pseudolatirus marmoratus (FOSSIL) (R.A. Philippi, 1846 †)
Fusinus maroccensis (J.F. Gmelin, 1791)
Peristernia marquesana (A. Adams, 1855)
Latirus marrowi W.G. Lyons & Snyder, 2015
Fusinus martinezi O. Macsotay & B. Campos,2001
Polygona martini (M.A. Snyder, 1988)
Granulifusus martinorum (W.O. Cernohorsky, 1987)
Terebraspira maryae (FOSSIL) E.J. Petuch, 1994 †
Mariafusus marylandica (FOSSIL) (Martin, 1904 †)
Marmarofusus matteus Snyder & W.G. Lyons, 2014
Clavilithes maximus (FOSSIL) (G.P. Deshayes, 1835 †)
Latirus maximus G.B. III Sowerby, 1893
Latirus maxwelli (H.A. Pilsbry, 1939)
Hemipolygona mcgintyi H.A. Pilsbry, 1939
Fusinus mcleani Callomon & Snyder, 2017
Bullockus mcmurrayi (W.J. Clench & C.G. Aguayo,1941)
Priscofusus medialis (FOSSIL) (T.A. Conrad, 1849 †)