Alopia nefasta (M. von Kimakowicz, 1894) Romania
Alopia nefasta ciucasiana A.V. Grossu, 1969 Romania14 mm
Alopia nefasta helenae (R. von Kimakowicz, 1928) Romania16 mm
Alopia nefasta interjecta H. Nordsieck, 1984 Romania14 mm
Roseniella nemethi M. Szekeres, 1998 Turkey25,2 mm
Phaedusa neniopsis H.A. Pilsbry, 1902 Japan, Kagoshima
Luchuphaedusa nesiothauma (H.A. Pilsbry, 1901) Japan, Oshima Island30 mm
Parafusulus neudeggensis (FOSSIL) H. Nordsieck, 2007 †
Agathylla neutra (C.A. Westerlund, 1898) Albania11 mm
Agathylla neutra merditana (A.J. Wagner, 1914) Albania9 mm
Tsoukatosia nicoleae A. Reischütz, P.L. Reischütz& Szekeres, 2016 GR-GRC
Clausilia nigricans R. Pulteney, 1807 Spain, Barcelona10,01 mm
Hemizaptyx nigricans H. Nordsieck, 1998
Stereophaedusa nishinoshimana H.A. Pilsbry, 1909 Japan, Shimane
Gracilinenia nitens H. Nordsieck, 2005 Peru15,5 mm
Balea nitida A. Mousson, 1858 Azores
Albinaria nivea (L. Pfeiffer, 1854) Greece, Peloponnesus15,3 mm
Albinaria nivea cathara (C.A. Westerlund, 1894) Greece, Peloponnesus18 mm
Albinaria nivea goldfussi (O. Böttger, 1883) Greece, Peloponnesus18 mm
Steeriana nivea H. Nordsieck, 2005 Peru, La Libertad16,9 mm
Alopia nixa M. von Kimakowicz, 1894 Romania, Bucegi Mountains12 mm
Alopia nixa fussi M. von Kimakowicz, 1894 Romania, Bucegi Mountains13 mm
Siciliaria nobilis (L. Pfeiffer, 1848) Italy, Sicily Island22 mm
Pseudalinda nordsiecki (I. Dedov & E. Neubert,2002) Macedonia11,7 mm
Sciocochlea nordsiecki P. Subai, 1993 Greece, Ipiros
Selenoptyx noviluna (H.A. Pilsbry, 1908) Ryukyu Islands
Caucasica novorossica (O. von Retowski, 1888) Caucasus13 mm
Oospira nubigena (O.F. von Möllendorff,1897) Indonesia, Java
Stereophaedusa nugax H.A. Pilsbry, 1901 Japan, Kagoshima14,2 mm
Mauritanica numidica (A. Letourneux, 1870)
Macroptychia obesa E. Neubert, 2002 Somalia, Gan Libah8,6 mm
Oospira obesa O. Böttger, 1890 Indonesia, Sumatra28 mm
Oospira obesa salacana O. Böttger, 1890 Indonesia, Sumatra25 mm
Loosjesiella obesiuscula (R.T. Lowe, 1863) Portugal, Madeira10,2 mm
Carinigera octava R.A.M. Brandt, 1962 Macedonia