Satsuma yaeyamensis (H.A. Pilsbry, 1894) Okinawa31,8 mm
Kimboraga yammerana G.A. Solem, 1985 Western Australia
Kimboraga yampiensis G.A. Solem, 1985 Western Australia
Amphidromus yangbayensis Thach & Huber, 2016
Cupedora yappalana G.A. Solem, 1992 South Australia25 mm
Ventopelita yatalaensis (J.C. Cox, 1873) Queensland
Labyrinthus yatesi (L. Pfeiffer, 1855) Brazil29,4 mm
Amphidromus yauyeejiae Thach & Abbas, 2017
Amphidromus yenlinhae Thach & F. Huber, 2017
Thersites yeppoonensis R.H. Beddome, 1897 Australia, Yeppoon31 mm
Lacustrelix yerelinana G.A. Solem, 1992 South Australia
Globorhagada yoowadan F. Köhler, 2011 Australia, Saint Andrew Island
Amplirhagada yorkensis F. Köhler, 2010 Australia, Coronation Island
Satsuma yoronjimana M. Azuma, 1990 Japan
Marylnessa yulei (E. Forbes, 1851) Australia, Proserpine42 mm
Lamprellia zebina (J.W. Brazier, 1878) Australia, Giru30,8 mm
Thersites zebrina (J.W. Brazier, 1829) Australia, Mount Stewart35 mm
Papuina zeno J.W. Brazier, 1876 Papua New Guinea
Planispira zodiacus (A.E.J. Férussac, 1821) Indonesia, Sulawesi30 mm
Planispira zonaria (C. Linnaeus, 1758) Indonesia, Seram Island29 mm
Albersia zonulata (A.E.J. Férussac, 1821) Papua New Guinea23 mm
Albersia zonulata recluziana (E.J. Le Guillou, 1842) Kapaur, Papua Barat, Indonesia