Sinployea monstrosa (C.M.F. Ancey, 1889) Fiji, Vanua Levu
Flammocharopa montana (H.H. Suter, 1891) New Zealand
Setomedea monteithi J. Stanisic, 1990 Queensland
Charopa montivaga H.H. Suter, 1894 New Zealand, Waikaremoana
Allodiscus morioria B.A. Marshall& G.M. Barker, 2008 New Zealand
Chaureopa mossi (R. Murdoch, 1897) New Zealand, Canterbury
Cavellioropa moussoni (H.H. Suter, 1890) New Zealand, Wellington
Danielleilona multicostata J. Stanisic, 1993 Australia, Yarrabah
Coenocharopa multiradiata J. Stanisic, 1990 New South Wales
Johannesoconcha multivolva H.B. Preston, 1913 Norfolk Island
Sinployea muri F.J. Brook, 2010
Ngairea murphyi (J.C. Cox, 1864) New South Wales
Elsothera murrayana (L. Pfeiffer, 1864) South Australia
Cavellia mutabilis (H.H. Suter, 1891) New Zealand, Mount Cook
Elsothera nautilodea (J.C. Cox, 1866) New South Wales
Sinployea navutuenis G.A. Solem, 1983 Fiji, Vanua Levu
Vatusila nayauana G.A. Solem, 1983 Fiji, Vanua Levu
Allodiscus negiae B.A. Marshall& G.M. Barker, 2008 New Zealand
Therasiella neozelanica R.A. Cumber, 1967 New Zealand
Russatus nigrescens O.F. von Möllendorff Micronesia, Pohnpei
Oreokera nimbus J. Stanisic, 1987 Australia, Port Douglas6,5 mm
Sinployea nissani (R.K. Dell, 1955) New Zealand
Pillomena nivea (C. Hedley, 1896) New South Wales
Norfolcioconcha norfolkensis (C. Hedley, 1899) Norfolk Island
Afrodonta novemlamellaris (H.C. Burnup, 1912) South Africa
Phenacharopa novoseelandica (L. Pfeiffer, 1853) New Zealand, Wellington3,9 mm
Paryphantopsis nucella J. Slapcinsky& R. Lasley, 2007 Papua New Guinea, New Britain
Setomedea nudicostata J. Stanisic, 1990 Australia, Miriam Vale2,7 mm
Allodiscus occidaneus B.A. Marshall& G.M. Barker, 2008 New Zealand
Ptychodon occulta N.H. Odhner, 1921 Chile, Juan Fernandez Island
Charopa ochra W.H. Webster, 1904 New Zealand, Auckland
Amphidoxa ochseni (R.A. Philippi, 1855) Chile, Valdivia
Cavellia oconnori R.K. Dell, 1950 New Zealand
Phacussa oconnori A.W.B. Powell, 1941 New Zealand, South Island
Pernagera officeri (C.M.D.E. Legrand, 1871) Tasmania4,2 mm