Corbicula fluminalis var. amnicoides Dollfus, 1884 † accepted as Corbicula fluminalis (O. F. Müller, 1774) (source of synonymy)
Cyrena duchastelii Nyst, 1838 † accepted as Corbicula duchastelii (Nyst, 1838) † (source of synonymy)
Emmericia lottii De Stefani, 1877 † accepted as Bithynia leachii (Sheppard, 1823) (source of synonymy)
Emmericia umbra De Stefani, 1877 † (additional source)
Helix (Vallonia) subpulchella var. oenotria De Stefani, 1880 † accepted as Vallonia pulchella (O. F. Müller, 1774) (source of synonymy)
Hydrobia stagnalis (Baster, 1765) accepted as Eupaludestrina stagnorum (Gmelin, 1791) (additional source)
Melania (Eumelania) etrusca De Stefani, 1880 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melania etrusca De Stefani, 1880 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melania gracilicosta F. Sandberger, 1872 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melania granulosa Michelotti, 1840 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melania semigranosa Michelotti, 1840 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melania verrii De Stefani, 1877 † accepted as Melanoides (Melanoides) curvicosta (Deshayes, 1835) † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Melanopsis affinis Pallary, 1916 † accepted as Melanopsis nodosa A. Férussac, 1822 † (additional source)
Melanopsis flammulata var. tuberosa De Stefani, 1880 † accepted as Melanopsis nodosa A. Férussac, 1822 † (source of synonymy)
Melanopsis nodosa Pecchioli, 1864 † accepted as Melanopsis nodosa A. Férussac, 1822 † (source of synonymy)
Melanopsis oomorpha De Stefani, 1877 † accepted as Melanopsis nodosa A. Férussac, 1822 † (source of synonymy)
Melanopsis semperi De Stefani, 1877 † accepted as Melanopsis nodosa A. Férussac, 1822 † (source of synonymy)
Melanopsis subtuberculata Pallary, 1916 † accepted as Melanopsis nodosa A. Férussac, 1822 † (source of synonymy)
Nematurella meneghiniana (De Stefani, 1875) † accepted as Prososthenia meneghiniana (De Stefani, 1875) † (new combination reference)
Nematurella meneghiniana var. etrusca De Stefani, 1880 † accepted as Prososthenia etrusca (De Stefani, 1880) † (status source)
Neritina (Neritaea) J. R. Roth, 1855 accepted as Theodoxus (Neritaea) J. R. Roth, 1855 represented as Theodoxus Montfort, 1810 (basis of record)
Neritina (Neritaea) groyana (A. Férussac, 1823) † accepted as Theodoxus groyanus (A. Férussac, 1823) † (basis of record)
Neritina bronni d'Ancona, 1869 † accepted as Neritina (Neritaea) groyana (A. Férussac, 1823) † accepted as Theodoxus groyanus (A. Férussac, 1823) † (source of synonymy)
Neritina etrusca De Stefani, 1880 † accepted as Theodoxus (Neritaea) groyanus (A. Férussac, 1823) † represented as Theodoxus groyanus (A. Férussac, 1823) † (source of synonymy)
Neritina marcellinae Clerici, 1895 † accepted as Theodoxus groyanus (A. Férussac, 1823) † (source of synonymy)
Neritina pantanellii De Stefani, 1877 † accepted as Theodoxus groyanus (A. Férussac, 1823) † (source of synonymy)
Neritina sena Cantraine, 1835 † accepted as Neritina (Neritaea) groyana (A. Férussac, 1823) † accepted as Theodoxus groyanus (A. Férussac, 1823) † (source of synonymy)
Planorbis loxostoma De Stefani, 1880 † accepted as Gyraulus albus (O. F. Müller, 1774) (source of synonymy)
Prososthenia interamnae De Stefani, 1880 † accepted as Micromelania zitteli (Schwartz von Mohrenstern, 1864) † (additional source)
Prososthenia meneghiniana (De Stefani, 1875) † (basis of record)
Rissoa meneghiniana De Stefani, 1875 † accepted as Prososthenia meneghiniana (De Stefani, 1875) † (new combination reference)
Striatella etrusca var. dertopraecedens Sacco, 1895 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Striatella etrusca var. dertostricta Sacco, 1895 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Striatella tuberculata var. costicillatissima Sacco, 1895 † accepted as Melanoides curvicosta (Deshayes, 1835) † (source of synonymy)
Succinea (Amphibina) oblonga var. triptychiophila Sacco, 1886 † accepted as Succinella oblonga triptychiophila (Sacco, 1886) † (additional source)
Valvata anconae De Stefani, 1877 † (additional source)
Viviparus belluccii De Stefani, 1880 † (additional source)
Viviparus etruscus narniensis Girotti, 1966 † accepted as Viviparus belluccii narniensis Girotti, 1966 † (new combination reference)