Opisthostoma lechria J.J. Vermeulen, 1991
Diplommatina leggongensis J.R. le B. Tomlin, 1941
Diplommatina lemyrei A.R.J.B. Bavay& P. Dautzenberg, 1903
Palaina levicostulata T. Iredale, 1944
Diplommatina leytensis O.F. von Möllendorff,1893
Opisthostoma linterae G.B. Sowerby, 1896
Nicida liricincta W.T. Blanford, 1868
Opisthostoma lituus J.J. Vermeulen, 1994
Diplommatina liwaensis T.H. Aldrich, 1898
Diplommatina luchuana H.A. Pilsbry, 1901
Palaina lucia T. Iredale, 1944
Diplommatina lygipleura J.J. Vermeulen, 1993
Diplommatina lyrata A.A. Gould, 1859
Diplommatina lyrata tokunoshimana H.A. Pilsbry & Y. Hirase,1904
Palaina macgillivrayi (L. Pfeiffer, 1855)
Palaina macgillivrayi semilevis T. Iredale, 1944
Diancta macrostoma (FOSSIL) O.F. von Möllendorff,1897 †
Opisthostoma macrostoma W.T. Blanford, 1869
Diplommatina madaiensis J.J. Vermeulen, 1993
Diplommatina maduana F.F. Laidlaw, 1949
Diplommatina maedai J.T. Kuroda, 1941
Diplommatina maedai dandanensis J.T. Kuroda, 1941
Diplommatina maipokhariensis Budha & Naggs, 2017
Palaina mariae (J.C.H. Crosse, 1867)
Palaina martensi (C.B. Adams, 1866)
Palaina martensi (FOSSIL) (Andreae, 1902) †
Diplommatina meijaardi J.J. Vermeulen, 1996
Plectostoma mengaburensis T.S. Liew, J.J. Vermeulen& alias, 2014
Diplommatina meratusensis J.J. Vermeulen, 1993
Opisthostoma michaelis W.S.S. Van Benthem-Jutting,1952
Arinia micro Marzuki & Foon, 2016
Diplommatina mindanavica J.F. Quadras& O.F. von Möllendorff, 1895
Arinia minor (G.B. Sowerby, 1843)
Diplommatina minuscula C. Chen & S.Q. Zhang,1998
Arinia minutior O.F. von Möllendorff,1894