Neritina zebra (J.G. Bruguière, 1792)
Vittina ziczac (J.B.P.A. Lamarck, 1816)
Theodoxus zivkovici (FOSSIL) (P.S. Pavlovic, 1903 †)
Theodoxus zlatarici (FOSSIL) (Š. Brusina, 1902 †)
Theodoxus zografi (FOSSIL) (Š. Brusina, 1902 †)
Theodoxus zonarius (FOSSIL) G.P. Deshayes, 1825 †