Achatina gemmellariana Benoit, 1862 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Achatina minima Siemaschko, 1847 accepted as Cochlicopa lubricella (Porro, 1838) (basis of record)
Achatina pusilla Scacchi, 1836 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Achatina spiculum W. H. Benson, 1856 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Achatina stephaniana Benoit, 1862 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Acicula hyalina Bielz, 1860 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Acicula lauta Paulucci, 1886 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Alienitor lyndhurstoides McLaughlin, 1954 accepted as Zonitoides arboreus (Say, 1817) (basis of record)
Ambigolimax nyctelius (Bourguignat, 1861) accepted as Letourneuxia nyctelia (Bourguignat, 1861) (additional source)
Ambigolimax valentianus (A. Férussac, 1821) (additional source)
Arion coerulens Collinge, 1897 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion cottianus Pollonera, 1889 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion distinctus Mabille, 1868 (additional source)
Arion fuscus var. pyrenaicus Moquin-Tandon, 1855 accepted as Arion hortensis A. Férussac, 1819 (basis of record)
Arion hessei Simroth, 1894 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion hortensis A. Férussac, 1819 (additional source)
Arion intermedius Normand, 1852 (additional source)
Arion intermedius var. apennina Pollonera, 1889 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion minimus Simroth, 1885 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion mollerii Pollonera, 1889 accepted as Arion distinctus Mabille, 1868 (basis of record)
Arion vejdovskyi Babor & Koštál, 1893 accepted as Arion distinctus Mabille, 1868 (additional source)
Arion verrucosus Brevière, 1881 accepted as Arion intermedius Normand, 1852 (basis of record)
Buccinum terrestre Montagu, 1803 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Bulimus lubricoides W. Stimpson, 1851 accepted as Cochlicopa lubrica (O. F. Müller, 1774) (additional source)
Bulimus unidentatus Vallot, 1801 accepted as Lauria cylindracea (Da Costa, 1778) (basis of record)
Caecilianella (Acicula) praeclara Westerlund, 1898 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella aglena Bourguignat, 1857 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella amoenitatum Dohrn, 1869 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella anglica Bourguignat, 1856 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella enhalia Bourguignat, 1860 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella eucharista Servain, 1880 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella lactea Moitessier, 1867 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella liesvillei Bourguignat, 1856 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella mauriana Bourguignat, 1870 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella merimeana Bourguignat, 1870 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella retteri Rosen, 1903 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella riberoi Servain, 1880 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella tiberiana Benoit, 1882 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Caecilianella uniplicata Bourguignat, 1864 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Candidula intersecta (Poiret, 1801) accepted as Xeroplexa intersecta (Poiret, 1801) (additional source)
Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Cionella (Caecilianella) gattoi Westerlund, 1892 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Cionella (Caecilianella) melitensis Westerlund, 1892 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Cionella (Caecilianella) pollonerae Westerlund, 1892 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Cochlea vulgaris da Costa, 1778 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Cochlicella barbara (Linnaeus, 1758) (additional source)
Cochlicella bulimoides Moquin-Tandon, 1855 accepted as Cochlicella barbara (Linnaeus, 1758) (basis of record)
Cochlicopa lubrica (O. F. Müller, 1774) (additional source)
Cochlicopa repentina Hudec, 1960 accepted as Cochlicopa lubrica (O. F. Müller, 1774) (basis of record)
Columna miliaris De Cristofori & Jan, 1832 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Coneuplecta calculosa (A. Gould, 1852) (additional source)
Cornu aspersum (O. F. Müller, 1774) (additional source)
Deroceras hesperium Pilsbry, 1944 accepted as Deroceras laeve (O. F. Müller, 1774) (basis of record)
Deroceras invadens Reise, Hutchinson, Schunack & Schlitt, 2011 (additional source)
Deroceras laeve (O. F. Müller, 1774) (additional source)
Deroceras reticulatum (O. F. Müller, 1774) (additional source)
Ferussacia bugesi Bourguignat, 1866 accepted as Cecilioides acicula (O. F. Müller, 1774) (basis of record)
Geomalacus bourguignati Mabille, 1867 accepted as Arion distinctus Mabille, 1868 (basis of record)
Geomalacus hiemalis Drouët, 1867 accepted as Arion distinctus Mabille, 1868 (basis of record)
Geomalacus mabillei Baudon, 1868 accepted as Arion distinctus Mabille, 1868 (basis of record)
Geomalacus vendeanus A. Letourneux, 1869 accepted as Arion distinctus Mabille, 1868 (basis of record)
Helix (Cochlodonta) anconostoma R. T. Lowe, 1831 accepted as Lauria cylindracea (Da Costa, 1778) (basis of record)
Helix (Cryptomphalus) betae Trechmann, 1938 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix (Helicigona) aspersa var. eutecta Monterosato, 1892 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix (Helicigona) aspersa var. insolida Monterosato, 1892 accepted as Cornu insolida (Monterosato, 1892) (basis of record)
Helix (Helicigona) aspersa var. putris Monterosato, 1892 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix (Pomatia) mazzulopsis Pilsbry, 1893 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix (Vallonia) brochoni Degrange-Touzin, 1893 accepted as Vallonia costata (O. F. Müller, 1774) (basis of record)
Helix (Vallonia) costata f. cyclostoma Westerlund, 1881 accepted as Vallonia costata (O. F. Müller, 1774) (basis of record)
Helix (Vallonia) costellata F. Sandberger, 1873 † accepted as Vallonia costata (O. F. Müller, 1774) (basis of record)
Helix aggerivaga Mabille, 1880 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix aspersa figarolae Jaeckel, 1954 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix aspersa var. cirtensis Kobelt, 1903 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix aspersa var. minor Paulucci, 1880 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix attonis L. Pfeiffer, 1840 accepted as Zonitoides arboreus (Say, 1817) (basis of record)
Helix bocconiana Benoit, 1859 accepted as Lauria cylindracea (Da Costa, 1778) (basis of record)
Helix breweri Newcomb, 1864 accepted as Zonitoides arboreus (Say, 1817) (additional source)
Helix carcusiaca Mabille, 1881 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix crenella Montagu, 1803 accepted as Vallonia costata (O. F. Müller, 1774) (basis of record)
Helix deferiana Bourguignat, 1882 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix expedenta Locard, 1899 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix ignota Mabille, 1865 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix imula Locard, 1899 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix paladilhi Bourguignat, 1866 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix pictonum Bourguignat, 1882 accepted as Xeroplexa intersecta (Poiret, 1801) (basis of record)
Helix pinnocki Liardet, 1876 accepted as Coneuplecta calculosa (A. Gould, 1852) (basis of record)
Helix rufescens O. G. Costa, 1839 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix scabiosula Locard, 1899 accepted as Xeroplexa scabiosula (Locard, 1899) (basis of record)
Helix secunda O. G. Costa, 1839 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix spumosa Lowe, 1861 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Helix stagnorum Gmelin, 1791 sensu Pulteney, 1799 accepted as Cochlicopa lubrica (O. F. Müller, 1774) (basis of record)
Helix subintersecta Bourguignat, 1882 accepted as Candidula intersecta (Poiret, 1801) accepted as Xeroplexa intersecta (Poiret, 1801) (source of synonymy)
Helix sydneyensis J. C. Cox, 1864 accepted as Oxychilus cellarius (O. F. Müller, 1774) (source of synonymy)
Helix variegata Gmelin, 1791 accepted as Cornu aspersum (O. F. Müller, 1774) (basis of record)
Hyalina podolica Clessin, 1880 accepted as Vitrea crystallina (O. F. Müller, 1774) (basis of record)
Hyalina roseni Lindholm, 1911 accepted as Zonitoides arboreus (Say, 1817) (basis of record)
Hyalinia andreaei O. Boettger, 1880 accepted as Vitrea crystallina (O. F. Müller, 1774) (basis of record)
Krynickia americana Tate, 1870 accepted as Deroceras laeve (O. F. Müller, 1774) (basis of record)
Krynickillus mamelianus Bourguignat, 1869 accepted as Limax maximus Linnaeus, 1758 (basis of record)
Krynickillus mentonicus (G. Nevill, 1880) accepted as Deroceras laeve (O. F. Müller, 1774) (basis of record)