Ancylus parmophorus De Stefani, 1880 † (original description)
Belgrandia acuta (De Stefani, 1877) † accepted as Nematurella acuta (De Stefani, 1877) † (basis of record)
Bythinia verrii De Stefani, 1880 † accepted as Bithynia verrii De Stefani, 1880 † (original description)
Melania etrusca De Stefani, 1880 † accepted as Melanoides curvicosta (Deshayes, 1835) † (original description)
Melanopsis flammulata var. tuberosa De Stefani, 1880 † accepted as Melanopsis nodosa A. Férussac, 1822 † (original description)
Nematurella meneghiniana var. etrusca De Stefani, 1880 † accepted as Prososthenia etrusca (De Stefani, 1880) † (original description)
Neritina etrusca De Stefani, 1880 † accepted as Theodoxus (Neritaea) groyanus (A. Férussac, 1823) † represented as Theodoxus groyanus (A. Férussac, 1823) † (original description)
Planorbis loxostoma De Stefani, 1880 † accepted as Gyraulus albus (O. F. Müller, 1774) (original description)
Planorbis peruzzii De Stefani, 1880 † accepted as Gyraulus peruzzii (De Stefani, 1880) † (original description)
Prososthenia interamnae De Stefani, 1880 † accepted as Micromelania zitteli (Schwartz von Mohrenstern, 1864) † (original description)
Valvata interposita De Stefani, 1880 † (original description)
Vivipara belluccii De Stefani, 1880 † accepted as Viviparus belluccii De Stefani, 1880 † (original description)