Alinda wagneri (A.J. Wagner, 1911) Bulgaria
Andiniella wagneri (W. Polinski, 1921) Peru
Synprosphyma wanshiensis (W. Blume, 1927)
Incania warszewiczi W. Polinski, 1924 Peru
Hemizaptyx wenderi Y.C. Lee & W.L. Wu, 2005 Taiwan12,2 mm
Albinaria wettsteini A. Fuchs & F. Käufel,1936 Greece, Cyclades
Strobeliella whateliana (J.G.F. de Charpentier,1850) Italy North10,6 mm
Strobeliella whateliana exoptata (A. Schmidt, 1857) Italy, Bergamo11,6 mm
Strobeliella whateliana klemmi (H. Nordsieck, 1966) Italy North11,9 mm
Hemiphaedusa whitteni H. Nordsieck, 2012
Margaritiphaedusa whitteni Grego & Szekeres, 2017
Albinaria wiesei E. Gittenberger, 1988 Greece13 mm
Oospira wuellerstorfi (J. Zelebor, 1867.) Andaman & Nicobar Islands
Albinaria xanthostoma O. Böttger, 1883 Greece, Crete Island17 mm
Albinaria xanthostoma H. Nordsieck, 2017
Synprosphyma xichangensis (C. Chen & S.Q. Zhang,1999)
Zaptyx yaeyamensis (H.A. Pilsbry, 1905) Okinawa8 mm
Megalophaedusa yagurai (J.T. Kuroda, 1936) Japan, Tokyo
Synprosphyma yanghaoi J. Grego & M. Szekeres,2011 China, Guangxi province4,7 mm
Clausilia yokohamensis J.C.H. Crosse, 1876 Japan, Tokyo42,7 mm
Megalauchenia yongshuae H. Nordsieck, 2007 Vietnam44,4 mm
Papilliphaedusa yongshuae H. Nordsieck, 2007
Macedonica ypsilon H. Nordsieck, 1977 Greece, Loutraki
Thaumatoptyx ypsilonptyx H. Nordsieck, 2003 Taiwan
Hemizaptyx yukitai (S. Uozumi& A. Yamamoto, 1993.)
Grandinenia yulinensis H. Nordsieck, 2012
Euphaedusa yunnancola H. Nordsieck, 2001 China, Yunnan14,3 mm
Alopia zagani M. Szekeres, 1969 Romania15 mm
Armenica zakatalica H. Nordsieck, 1977 Caucasus
Serrulella zanchettai (FOSSIL) H. Nordsieck, 2013 †
Cristataria zelebori (E.A. Rossmässler, 1856) Lebanon
Fuchsiana zhangqingae Grego & Szekeres, 2017
Distortiphaedusa zhaoyifani (J. Grego & M. Szekeres,2008) China, Guangxi province30,3 mm
Herilla ziegleri (H.C. Küster, 1847) Serbia
Herilla ziegleri accedens (O.F. von Möllendorff,1873) Yugoslavia25,5 mm