Cyathopoma micron (H.A. Pilsbry, 1900) Taiwan
Cyathopoma micron iota H.A. Pilsbry & Y. Hirase,1904 Ryukyu Islands
Dicharax micropolitus Páll-Gergely & Hunyadi,2017
Boucardicus milloti E. Fischer-Piette& J. Bedoucha, 1965 Madagascar
Cyclotus mindaiensis (F.S. Bock, 1881) Malaysia, Borneo
Leptopoma minus E.C. Von Martens, 1867 Australia, Northern Territory
Platyrhaphe minutus (A. Adams, 1866) Taiwan4 mm
Ditropis mira O.F. von Möllendorff,1891
Leptopoma mitchelli (E.A. Smith) Malaysia, Borneo
Chamalycaeus miyazakii G. Takahashi & T. Habe,1973 Japan, Fukuoka
Rhiostoma moreleti P. Dautzenberg& A.R.J.B. Bavay Laos35,15 mm
Leptopoma morleti (FOSSIL) A.E.M. Cossmann, 1892 † France, Paris Basin
Platyrhaphe mucronata (G.B. Sowerby, 1843)
Leptopoma multilabre J.B.P.A. Lamarck Indonesia, Raja Ampat Islands15 mm
Leptopoma multilabre lamellatum E.R. Sykes, 1903 Indonesia15 mm
Chamalycaeus multirugosus (H.H. Godwin-Austen,1874)
Japonia mundyana (H.H. Godwin-Austen,1889) Malaysia, Borneo
Japonia musiva A.A. Gould, 1859 Japan
Leptopoma muswarense H.C. Fulton, 1910 Papua New Guinea
Chamalycaeus nagaensis (H.H. Godwin-Austen,1871)
Owensgriffithsius namorokae K.C. Emberton, 2002 Madagascar
Pterocyclus nanus (W.H. Benson, 1851) India, Cuddalore
Boucardicus nanus E. Fischer-Piette& J. Bedoucha, 1965
Cyclotus natunensis E.A. Smith, 1894
Cyclophorus niahensis H.H. Godwin-Austen, 1889 Malaysia, Borneo
Pterocyclus niahensis H.H. Godwin-Austen, 1889 Borneo, Sarawak27,4 mm
Leptopoma niasense H.C. Fulton, 1907 Indonesia, Nias Island13 mm
Cyclotus niasensis H.C. Fulton, 1907 Indonesia, Nias Island
Cyclophorus nilagiricus (W.H. Benson, 1852) India, Kerala
Chamalycaeus nipponensis (O.W.H. Reinhardt, 1877) Japan, Tochigi
Cyathopoma nishinoi H. Minato, 1980 Japan
Cyathopoma nitidum (R.H. Beddome, 1875) India, Karnataka
Leptopoma nitidum (G.B. Sowerby, 1843) Indonesia, East Java
Leptopoma nitidum guimarasensis P. Bartsch, 1918 Philippines, Guimaras Island
Leptopoma nitidum taivanum (G.B. Sowerby, 1843) Taiwan