Monoptychia monoptyx (FOSSIL) H. Nordsieck, 1972 †
Delima montenegrina (L. Pfeiffer, 1848) Yugoslavia12,6 mm
Delima montenegrina muralis (H.C. Küster, 1860) Albania12 mm
Kazancia monticola E. Neubert, 1992 Turkey
Hemizaptyx montuosa H. Nordsieck, 2003
Albinaria moreletiana O. Böttger, 1878 Greece, Crete Island20 mm
Microphaedusa morgani H. Nordsieck, 1978 Iran10 mm
Formosana moschina (P.V. Gredler, 1888) China, HuBei12,7 mm
Formosana moschinella H. Nordsieck, 2007
Garnieria mouhoti (L. Pfeiffer, 1862) Laos
Garnieria mouhoti moellendorffi H. Nordsieck, 2002 Laos, Luang Prabang
Euphaedusa mucronifera H. Nordsieck, 1998
Pamphylica multidentifera (E. Neubert, 1992) Turkey, Antalya
Serrulella multiplicata (FOSSIL) H. Nordsieck, 1981 †
Elia multiserrata (O. Böttger, 1896) Turkey15 mm
Armenica multispirata E. Neubert, 1992 Turkey20,9 mm
Albinaria munda (E.A. Rossmässler, 1836) Turkey17,8 mm
Albinaria munda eudilica (H. von Maltzan, 1884) Greece18,8 mm
Heterozaptyx munus (H.A. Pilsbry, 1901) Japan, Kagoshima
Hemiphaedusa myersi P.B. Schmacker& O. Böttger, 1891 Taiwan12 mm
Albinaria myrensis H. Nordsieck, 1993 Turkey, Antalya
Bulgarica mystica (C.A. Westerlund, 1893) Greece
Cristataria nadimi G. Tohme & G. Tohme, 1988 Lebanon
Clausilia naevosa A.E.J. Férussac, 1841 Greece, Zakinthos Island14,8 mm
Oospira naggsi Páll-Gergely & Szekeres,2017
Reinia nakadai H.A. Pilsbry, 1902 Japan, Tokyo
Tropidauchenia nakaharai H. Nordsieck, 2007 China, Guangxi province26 mm
Zaptyx nakanoshimana H.A. Pilsbry, 1909 Japan, Tokara Islands
Montenegrina nana Z. Fehér & M. Szekeres,2006 Albania
Montenegrina nana barinai Z. Fehér & M. Szekeres,2016 Albania13,8 mm
Montenegrina nana gracilis Z. Eröss & M. Szekeres,2006 Albania
Tyrannophaedusa nankaidoensis J.T. Kuroda, 1955 Japan, Wakayama
Tropidauchenia napoensis H. Nordsieck, 2007 China, Guangxi province22 mm
Agathyllina narentana (A. Schmidt, 1868) Yugoslavia15,1 mm
Acrotomina narzanensis (O.W. Von Rosen, 1901) Caucasus17 mm