Alopia nefasta (M. von Kimakowicz, 1894)
Alopia nefasta ciucasiana A.V. Grossu, 1969
Alopia nefasta helenae (R. von Kimakowicz, 1928)
Alopia nefasta interjecta H. Nordsieck, 1984
Roseniella nemethi M. Szekeres, 1998
Phaedusa neniopsis H.A. Pilsbry, 1902
Luchuphaedusa nesiothauma (H.A. Pilsbry, 1901)
Parafusulus neudeggensis (FOSSIL) H. Nordsieck, 2007 †
Agathylla neutra (C.A. Westerlund, 1898)
Agathylla neutra merditana (A.J. Wagner, 1914)
Tsoukatosia nicoleae A. Reischütz, P.L. Reischütz& Szekeres, 2016
Clausilia nigricans R. Pulteney, 1807
Hemizaptyx nigricans H. Nordsieck, 1998
Stereophaedusa nishinoshimana H.A. Pilsbry, 1909
Gracilinenia nitens H. Nordsieck, 2005
Balea nitida A. Mousson, 1858
Albinaria nivea (L. Pfeiffer, 1854)
Albinaria nivea cathara (C.A. Westerlund, 1894)
Albinaria nivea goldfussi (O. Böttger, 1883)
Steeriana nivea H. Nordsieck, 2005
Alopia nixa M. von Kimakowicz, 1894
Alopia nixa fussi M. von Kimakowicz, 1894
Siciliaria nobilis (L. Pfeiffer, 1848)
Pseudalinda nordsiecki (I. Dedov & E. Neubert,2002)
Sciocochlea nordsiecki P. Subai, 1993
Selenoptyx noviluna (H.A. Pilsbry, 1908)
Caucasica novorossica (O. von Retowski, 1888)
Oospira nubigena (O.F. von Möllendorff,1897)
Stereophaedusa nugax H.A. Pilsbry, 1901
Mauritanica numidica (A. Letourneux, 1870)
Macroptychia obesa E. Neubert, 2002
Oospira obesa O. Böttger, 1890
Oospira obesa salacana O. Böttger, 1890
Loosjesiella obesiuscula (R.T. Lowe, 1863)
Carinigera octava R.A.M. Brandt, 1962