Kimberleytrachia nelsonensis F. Criscione & F. Köhler,2015 Western Australia, Kimberley
Chloritis nephele (B. Strubell, 1895) Papua New Guinea
Micromelon nepouieana G.A. Solem, 1992 South Australia
Quistrachia nevbrownlowi Stanisic, 2016
Amphidromus ngocanhi Thach, 2017
Amphidromus ngocngai Thach, 2017
Setobaudinia ngurraali F. Köhler, 2011 Australia, Mary Island
Amphidromus niasensis H.C. Fulton, 1907 Indonesia, Nias Island30 mm
Setobaudinia nicolasi F. Criscione & F. Köhler,2016 Western Australia, Kimberley, Baudin Island
Camaena nigricans O.F. von Möllendorff,1900 Central Vietnam
Planispira nilagerica (L. Pfeiffer, 1845) India, Western Ghats
Prymnbriareus nimberlinus G.A. Solem, 1981 Western Australia
Olympus nimbus L.R.L. Simone, 2010 Brazil, São Gabriel da Cachoeira
Strepsitaurus ningaloo G.A. Solem, 1997 Western Australia
Camaena ninhbinhensis Thach, 2016
Papuina nodifera (L. Pfeiffer, 1861) Indonesia25,6 mm
Exiligada nodulicauda F. Criscione, A. Law& F. Köhler, 2012 Australia, Kirkimbie
Amphidromus noriokowasoei N.N. Thach & F. Huber,2017 Vietnam
Cupedora nottensis G.A. Solem, 1992 South Australia
Megalacron novaegeorgensis (J.C. Cox, 1870) Papua New Guinea, Manus Island21 mm
Megalacron novaegeorgensis creta B. Rensch, 1934 Papua New Guinea
Thersites novaehollandiae (J.E. Gray, 1834) Australia, Hunters River
Papuina novaepommeraniae B. Rensch, 1929 Indo-Pacific
Amplirhagada novelta T. Iredale, 1939 Western Australia
Papuina novoguineensis (L. Pfeiffer, 1862) Indonesia, Bali38,8 mm
Sinumelon nullarboricum (R. Tate, 1878) South Australia17 mm
Austrochloritis nundinalis T. Iredale, 1943 New South Wales
Coniglobus nux (O.F. von Möllendorff,1888) Taiwan28 mm
Coniglobus nux litus C.K. Chang & A. Tada,2000 Taiwan20,8 mm
Coniglobus nux paiwanis J.T. Kuroda, 1941 Taiwan25,1 mm
Papuina obiensis (P. Dautzenberg, 1902) Moluccas15,9 mm
Papuina obiensis minor P. Dautzenberg, 1902 Moluccas13,5 mm
Xanthomelon obliquirugosa E.A. Smith, 1894 Australia, Victoria Bonaparte
Polydontes obliterata (A.E.J. Férussac, 1821) Haiti56 mm
Nipponochloritis obscurus (H.A. Pilsbry& Y. Hirase, 1904) Japan