Arinia minutissima O.F. von Möllendorff,1887
Opisthostoma mirabile E.A. Smith, 1893
Diplommatina miraculumdei J.J. Vermeulen, 1993
Palaina modesta J.F. Quadras& O.F. von Möllendorff, 1893
Palaina moellendorffi (H.C. Fulton, 1899)
Diplommatina moluensis E.A. Smith, 1893
Palaina montrouzieri (J.C.H. Crosse, 1874)
Palaina morongensis O.F. von Möllendorff,1890
Diplommatina naiyanetri S. Panha, 1997
Fermepalaina nancena T. Iredale, 1945
Diplommatina nesiotica H.A. Pilsbry & Y. Hirase,1909
Diplommatina nevilli J.C.H. Crosse, 1879
Hungerfordia ngereamensis M. Yamazaki & Ueshima,2015
Diplommatina niahensis H.H. Godwin-Austen, 1889
Palaina nicholsae T. Iredale, 1944
Nicida nilgirica (W.T. Blanford& H.F. Blanford, 1860)
Diplommatina nipponensis O.F. von Möllendorff,1885
Diplommatina nishii A. Yamamoto & S. Uozumi,1984
Nicida nitidula (W.T. Blanford, 1868)
Hungerfordia nodulosa M. Yamazaki & Ueshima,2015
Palaina nubigena O.F. von Möllendorff,1897
Niahia oberon J.J. Vermeulen, 1996
Arinia obesa J.J. Vermeulen, 1996
Opisthostoma obliquedentatum J.J. Vermeulen, 1994
Adelopoma occidentale (R.J.L. Guppy, 1872)
Diplommatina oedogaster J.J. Vermeulen, 1993
Diplommatina okiensis H.A. Pilsbry & Y. Hirase,1908
Diplommatina oligopleuris W.T. Blanford, 1868
Diplommatina onyx H.C. Fulton, 1901
Diplommatina ornithorica W.S.S. Van Benthem-Jutting,
Diplommatina oshimae H.A. Pilsbry, 1901
Opisthostoma otostoma O. Böttger, 1893
Palaina ovatula O.F. von Möllendorff,1897
Arinia oviformis J.J. Vermeulen, 1996
Diplommatina oviformis H.C. Fulton, 1901