Bythinia tentaculata var. tellinii Sacco, 1886 † accepted as Bithynia tentaculata tellinii Sacco, 1886 † (original description)
Clausilia (Laminifera) villafranchiana Sacco, 1886 † accepted as Laminiplica villafranchiana (Sacco, 1886) † (original description)
Cyclas zenonii Sacco, 1886 † accepted as Sphaerium zenonii (Sacco, 1886) † (original description)
Cyclostoma rhinoceronthophylum Sacco, 1886 † accepted as Pomatias rhinoceronthophylus (Sacco, 1886) † (original description)
Dreissena mayeri Sacco, 1886 † (original description)
Dreissena simplex var. pedemontana Sacco, 1886 † (original description)
Glandina melii Sacco, 1886 † accepted as Palaeoglandina taurinensis (Sacco, 1886) † (original description)
Glandina taurinensis Sacco, 1886 † accepted as Palaeoglandina taurinensis (Sacco, 1886) † (original description)
Helix (Trigonostoma) planorbiformis Sacco, 1886 † accepted as Protodrepanostoma planorbiforme (Sacco, 1886) † (original description)
Helix (Zenobia) carinatissima var. villafranchiana Sacco, 1886 † accepted as Hygromia carinatissima villafranchiana (Sacco, 1886) † (original description)
Helix pseudohyalinia Sacco, 1886 † accepted as Soosia taramellii (Sacco, 1886) † (original description)
Helix taramellii Sacco, 1886 † accepted as Soosia taramellii (Sacco, 1886) † (original description)
Limax (Heynemannia) pollonerae Sacco, 1886 † represented as Limax pollonerae Sacco, 1886 † (original description)
Limnaeus (Limnophysa) anthracotheriorum Sacco, 1886 † accepted as Galba anthracotheriorum (Sacco, 1886) † (original description)
Limnaeus (Limnus) Agassiz, 1847 accepted as Lymnaea Lamarck, 1799 (basis of record)
Limnaeus (Limnus) bucciniformis Sacco, 1886 † accepted as Stagnicola bucciniformis (Sacco, 1886) † (original description)
Margaritana astensis Sacco, 1886 † accepted as Pseudodon astensis (Sacco, 1886) † (original description)
Melania (Balanocochlis) P. Fischer, 1885 accepted as Balanocochlis P. Fischer, 1885 (basis of record)
Melania (Balanocochlis) propatula Sacco, 1886 † accepted as Amphimelania patula propatula (Sacco, 1886) † accepted as Holandriana patula propatula (Sacco, 1886) † (original description)
Melanopsis coniungens Sacco, 1886 † accepted as Melanopsis clava coniungens Sacco, 1886 † (original description)
Patula (Discus) pantanellii Sacco, 1886 † accepted as Discus pantanellii (Sacco, 1886) † (original description)
Physa meneghinii Sacco, 1886 † (original description)
Pisidium capellinii Sacco, 1886 † (original description)
Strophostoma italicum Sacco, 1886 † accepted as Ferussina anostomaeformis italica (Sacco, 1886) † (original description)
Succinea (Amphibina) oblonga Draparnaud, 1801 accepted as Succinella oblonga (Draparnaud, 1801) (basis of record)
Succinea (Amphibina) oblonga var. triptychiophila Sacco, 1886 † accepted as Succinella oblonga triptychiophila (Sacco, 1886) † (original description)
Vertigo (Scarabella) fossanense var. quatuordentata Sacco, 1886 † accepted as Gastrocopta (Albinula) acuminata (Klein, 1846) † represented as Gastrocopta acuminata (Klein, 1846) † (original description)