Between brackets is the number of accepted species
Click on "-" to collapse/hide all child taxa
Shows the number of accepted species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
Click to see the taxon details page
- Mollusca (132 738)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (24 984)
- Class Caudofoveata (143)
- Class Cephalopoda (1 830)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 673)
- Subclass Amphigastropoda † (387)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 618)
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 153)
- Infraclass "Lower Heterobranchia" (1 137)
- Infraclass Euthyneura (37 430)
- Subterclass Acteonimorpha (411)
- Subterclass Ringipleura (2 917)
- Subterclass Tectipleura (34 102)
- Superorder Acochlidiimorpha (48)
- Superorder Ascoglossa accepted as Sacoglossa
- Superorder Basommatophora accepted as Hygrophila
- Superorder Eupulmonata (25 566)
- Order Aillyida accepted as Achatinina
- Order Ellobiida (579)
- Order Gymnomorpha accepted as Systellommatophora
- Order Stylommatophora (24 763)
- Suborder Achatinina (2 899)
- Suborder Elasmognatha accepted as Succineoidei
- Suborder Helicina (21 624)
- Infraorder Arionoidei (139)
- Infraorder Clausilioidei (1 859)
- Infraorder Helicina incertae sedis (3 210)
- Infraorder Helicoidei (5 690)
- Infraorder Limacoidei (4 250)
- Superfamily Dyakioidea Gude & B. B. Woodward, 1921 accepted as Trochomorphoidea Mörch, 1864
- Superfamily Gastrodontoidea Tryon, 1866 (621)
- Superfamily Helicarionoidea Bourguignat, 1877 (1 862)
- Superfamily Limacoidea Batsch, 1789 (364)
- Family Agriolimacidae H. Wagner, 1935 (121)
- Family Boettgerillidae Wiktor & I. M. Likharev, 1979 (2)
- Family Boettgerillidae Van Goethem, 1972 accepted as Boettgerillidae Wiktor & I. M. Likharev, 1979
- Family Limacidae Batsch, 1789 (107)
- Subfamily Eumilacinae I. M. Likharev & Wiktor, 1980 (5)
- Subfamily Limacinae Batsch, 1789 (102)
- Genus Ambigolimax Pollonera, 1887 (4)
- Genus Bielzia Clessin, 1887 (1)
- Genus Caspilimax P. Hesse, 1926 (1)
- Genus Caucasolimax I. M. Likharev & Wiktor, 1980 accepted as Svanetia P. Hesse, 1926
- Genus Chromolimax Pini, 1877 accepted as Limax Linnaeus, 1758
- Genus Eulimax Moquin-Tandon, 1855 accepted as Limax Linnaeus, 1758
- Genus Frauenfeldia Hazay, 1884 accepted as Bielzia Clessin, 1887
- Genus Gestroa Pini, 1877 accepted as Limax Linnaeus, 1758
- Genus Gigantomilax O. Boettger, 1883 (11)
- Genus Heynemannia Malm, 1868 accepted as Limax Linnaeus, 1758
- Genus Kasperia Godwin-Austen, 1914 accepted as Limax Linnaeus, 1758
- Genus Lehmannia Heynemann, 1863 (16)
- Genus Limacella Brard, 1815 accepted as Limax Linnaeus, 1758
- Genus Limacopsis Simroth, 1888 accepted as Bielzia Clessin, 1887
- Genus Limacus Lehmann, 1864 (3)
- Genus Limax Linnaeus, 1758 (54)
- Subgenus Limax (Agriolimax) Mörch, 1865 accepted as Agriolimax Mörch, 1865
- Subgenus Limax (Amalia) Moquin-Tandon, 1855 accepted as Milax J. E. Gray, 1855
- Subgenus Limax (Ariolimax) Mörch, 1859 accepted as Ariolimax Mörch, 1859
- Subgenus Limax (Bielzia) Clessin, 1887 accepted as Bielzia Clessin, 1887
- Subgenus Limax (Brachylimax) Falkner & Niederhöfer, 2008 represented as Limax Linnaeus, 1758
- Species Limax (Brachylimax) giovannellae Falkner & Niederhöfer, 2008 represented as Limax giovannellae Falkner & Niederhöfer, 2008
- Subgenus Limax (Caspilimax) P. Hesse, 1926 accepted as Caspilimax P. Hesse, 1926
- Subgenus Limax (Cinereana) Mabille, 1870 accepted as Limax Linnaeus, 1758
- Subgenus Limax (Corsicana) Mabille, 1870 accepted as Limax Linnaeus, 1758
- Subgenus Limax (Deroceras) Rafinesque, 1820 accepted as Deroceras Rafinesque, 1820
- Subgenus Limax (Deshayesiana) Mabille, 1870 accepted as Limax Linnaeus, 1758
- Subgenus Limax (Eulimax) Moquin-Tandon, 1855 accepted as Limax Linnaeus, 1758
- Subgenus Limax (Heinemannia) [sic] accepted as Limax (Heynemannia) Malm, 1868
- Subgenus Limax (Heynemannia) Malm, 1868 accepted as Limax Linnaeus, 1758
- Subgenus Limax (Hyalimax) H. Adams & A. Adams, 1855 accepted as Hyalimax H. Adams & A. Adams, 1855
- Subgenus Limax (Kasperia) Godwin-Austen, 1914 represented as Limax Linnaeus, 1758
- Subgenus Limax (Krynickia) Kaleniczenko, 1851 accepted as Krynickillus Kaleniczenko, 1851
- Subgenus Limax (Krynickillus) Kaleniczenko, 1851 accepted as Krynickillus Kaleniczenko, 1851
- Subgenus Limax (Lehmannia) Heynemann, 1863 accepted as Lehmannia Heynemann, 1863
- Subgenus Limax (Limacopsis) Simroth, 1888 accepted as Bielzia Clessin, 1887
- Subgenus Limax (Limacus) Lehmann, 1864 accepted as Limacus Lehmann, 1864
- Subgenus Limax (Limax) Linnaeus, 1758 represented as Limax Linnaeus, 1758
- Subgenus Limax (Malacolimax) Malm, 1868 accepted as Malacolimax Malm, 1868
- Subgenus Limax (Megalopelta) Mörch, 1857 accepted as Limax (Megapelta) Mörch, 1857
- Subgenus Limax (Megapelta) Mörch, 1857 accepted as Deroceras Rafinesque, 1820
- Subgenus Limax (Microheynemannia) Simroth, 1888 accepted as Malacolimax Malm, 1868
- Subgenus Limax (Paralimax) O. Boettger, 1883 accepted as Paralimax O. Boettger, 1883
- Subgenus Limax (Svanetia) P. Hesse, 1926 accepted as Svanetia P. Hesse, 1926
- Subgenus Limax (Tenelliana) Fagot, 1893 accepted as Malacolimax Malm, 1868
- Subgenus Limax (Vitrinoides) Simroth, 1891 accepted as Gigantomilax (Vitrinoides) Simroth, 1891
- Species Limax aeolianus Fo. Giusti, 1973
- Species Limax agrestis Linnaeus, 1758 accepted as Deroceras agreste (Linnaeus, 1758)
- Species Limax albipes Dumont & Mortillet, 1853
- Species Limax albucianensis Sacco, 1889 †
- Species Limax aldrovandi Moquin-Tandon, 1855
- Species Limax alpinus A. Férussac, 1822 accepted as Limax cinereoniger Wolf, 1803
- Species Limax altivagus Theobald, 1862 accepted as Anadenus altivagus (Theobald, 1862)
- Species Limax amaliae Bettoni, 1870
- Species Limax amalioides Simroth, 1898 accepted as Svanetia caucasica (Simroth, 1898)
- Species Limax ananowi (Simroth, 1902) accepted as Deroceras subagreste (Simroth, 1892)
- Species Limax ananowi Simroth, 1898 accepted as Svanetia caucasica (Simroth, 1898)
- Species Limax andecolus A. d'Orbigny, 1838 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax anguiformis Morelet, 1845 accepted as Geomalacus anguiformis (Morelet, 1845)
- Species Limax araneus Gassies, 1867 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax arborum Bouchard-Chantereaux, 1838 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax argentinus Strobel, 1874 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax argillaceus Gassies, 1856 accepted as Tandonia sowerbyi (A. Férussac, 1823)
- Species Limax armeniacus Simroth, 1886 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax ater Linnaeus, 1758 accepted as Arion ater (Linnaeus, 1758)
- Species Limax baeri Simroth, 1898 accepted as Caspilimax keyserlingi (E. von Martens, 1880)
- Species Limax baeticus Mabille, 1868 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax berendti Strebel & G. Pfeffer, 1880 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax berytensis Bourguignat, 1852 accepted as Deroceras berytense (Bourguignat, 1852)
- Species Limax bettoni Sordelli, 1870 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax bicolor Selenka, 1865 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax bielzii Seibert, 1874
- Species Limax bilobatus A. Férussac, 1819 accepted as Deroceras agreste (Linnaeus, 1758)
- Species Limax bitentaculatus Quoy & Gaimard, 1832 accepted as Athoracophorus bitentaculatus (Quoy & Gaimard, 1832)
- Species Limax bocagei Castro, 1873 accepted as Limax maximus Linnaeus, 1758
- Species Limax brandstetteri Falkner, 2008
- Species Limax brandti E. von Martens, 1880 accepted as Eumilax brandti (E. von Martens, 1880)
- Species Limax brasiliensis C. Semper, 1873 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax brondelianus Bourguignat, 1861
- Species Limax brunneus Draparnaud, 1801 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax callichrous Bourguignat, 1861
- Species Limax camerani Lessona & Pollonera, 1882
- Species Limax campestris A. Binney, 1842 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax canapicianus Pollonera, 1885
- Species Limax canariensis A. d'Orbigny, 1839 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax capensis Krauss, 1848 accepted as Ariopelta capensis (Krauss, 1848)
- Species Limax carbonarius O. Boettger, 1885
- Species Limax carinatus Risso, 1826 accepted as Tandonia sowerbyi (A. Férussac, 1823)
- Species Limax carolinianus Bosc, 1802 accepted as Philomycus carolinianus (Bosc, 1802)
- Species Limax castaneus Ingersoll, 1875 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax castrensis De Stefani, 1880 †
- Species Limax caucasicus Simroth, 1898 accepted as Svanetia caucasica (Simroth, 1898)
- Species Limax cecconii Simroth, 1906 accepted as Gigantomilax cecconii (Simroth, 1906)
- Species Limax cephalonicus Simroth, 1886
- Species Limax ciminensis Pollonera, 1890
- Species Limax cinctus O. F. Müller, 1774
- Species Limax cinereoniger Wolf, 1803
- Species Limax cinereus O. F. Müller, 1774 accepted as Limax maximus Linnaeus, 1758
- Species Limax cobanensis Crosse & P. Fischer, 1872 accepted as Deroceras cobanensis (Crosse & P. Fischer, 1872)
- Species Limax coccineus Gistel, 1848
- Species Limax coerulans M. Bielz, 1851 accepted as Bielzia coerulans (M. Bielz, 1851)
- Species Limax colchicus Simroth, 1898 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax columbianus A. Gould, 1851 accepted as Ariolimax columbianus (A. Gould, 1851)
- Species Limax companyoi Bourguignat, 1863 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax conemenosi O. Boettger, 1882
- Species Limax corcyrensis Simroth, 1905 accepted as Limax cephalonicus Simroth, 1886
- Species Limax corsicus Moquin-Tandon, 1855
- Species Limax crassissimus Jooss, 1902 †
- Species Limax crassitesta Reuss, 1868 † accepted as Limacus crassitesta (Reuss, 1868) †
- Species Limax crenata Martyn, 1786 accepted as Amphibola crenata (Martyn, 1786)
- Species Limax dacampi Menegazzi, 1855
- Species Limax daghestanus Simroth, 1898 accepted as Gigantomilax daghestanus (Simroth, 1898)
- Species Limax deshayesi Bourguignat, 1861 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax dobrogicus Grossu & Lupu, 1960
- Species Limax dofleini P. Hesse, 1928
- Species Limax doriae Bourguignat, 1861 accepted as Limax dacampi dacampi Menegazzi, 1855
- Species Limax drymonius Bourguignat, 1859 accepted as Deroceras reticulatum (O. F. Müller, 1774)
- Species Limax ecarinatus O. Boettger, 1881 accepted as Limacus maculatus (Kaleniczenko, 1851)
- Species Limax ehrenbergii Bourguignat, 1853 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax engadinensis Heynemann, 1863
- Species Limax eremiophilus Bourguignat, 1861
- Species Limax erythrus Bourguignat, 1864
- Species Limax etruscus Issel, 1868 accepted as Tandonia sowerbyi (A. Férussac, 1823)
- Species Limax eubalius Bourguignat, 1864 accepted as Limax maximus Linnaeus, 1758
- Species Limax excavatus Andreae, 1904 † accepted as Lehmannia excavata (Andreae, 1904) †
- Species Limax fasciatus Nilsson, 1823 accepted as Arion fasciatus (Nilsson, 1823)
- Species Limax fibratus Martyn, 1784 accepted as Placostylus fibratus (Martyn, 1784)
- Species Limax flavus Linnaeus, 1758 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax florenskii Simroth, 1912 accepted as Gigantomilax daghestanus (Simroth, 1898)
- Species Limax fonyodensis Lörenthey, 1906 † accepted as Milax fonyodensis (Lörenthey, 1906) †
- Species Limax fossilis Sacco, 1886 †
- Species Limax fuliginosus A. Gould, 1852 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax fulvus Normand, 1852 accepted as Malacolimax tenellus (O. F. Müller, 1774)
- Species Limax fuscus O. F. Müller, 1774 accepted as Arion fuscus (O. F. Müller, 1774)
- Species Limax gagates Draparnaud, 1801 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax genei Lessona & Pollonera, 1882
- Species Limax geographicus Renier, 1804 accepted as Limax dacampi Menegazzi, 1855
- Species Limax geographicus A. Férussac, 1823 accepted as Limax dacampi Menegazzi, 1855
- Species Limax gerhardti Niethammer, 1937
- Species Limax giovannellae Falkner & Niederhöfer, 2008
- Species Limax giustii Falkner & Nitz, 2010
- Species Limax gracilis Rafinesque, 1820 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax gracilis Leydig, 1876 accepted as Tandonia budapestensis (Hazay, 1880)
- Species Limax graecus Simroth, 1889
- Species Limax granosus Bérenguier, 1900
- Species Limax graziadeii Gerhardt, 1940
- Species Limax grossui Lupu, 1970 accepted as Limacus ecarinatus (O. Boettger, 1881)
- Species Limax guatemalensis Crosse & P. Fischer, 1870 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax gyratus Westerlund, 1883
- Species Limax helveticus Bourguignat, 1862
- Species Limax hemmeni Rähle, 1983
- Species Limax hemphili W. G. Binney, 1890 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax hemphilli W. G. Binney, 1890 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax hewstoni J. G. Cooper, 1872 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax hyperboreus Westerlund, 1876 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax ianninii Fo. Giusti, 1973
- Species Limax ilvensis Falkner & Nitz, 2010
- Species Limax incipiens Simroth, 1912 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax ingersolli W. G. Binney, 1875 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax jailanus Simroth, 1912 accepted as Gigantomilax koenigi (Simroth, 1912)
- Species Limax jalapensis Strebel & G. Pfeffer, 1880 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax kaznakovi Simroth, 1912 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax keyserlingi E. von Martens, 1880 accepted as Caspilimax keyserlingi (E. von Martens, 1880)
- Species Limax koenigi Simroth, 1912 accepted as Gigantomilax koenigi (Simroth, 1912)
- Species Limax kraussianus Heynemann, 1863 accepted as Urocyclus kraussianus (Heynemann, 1863)
- Species Limax kraussii H. Adams & A. Adams, 1855
- Species Limax kuehnelti H. Wagner, 1940 accepted as Limax cephalonicus Simroth, 1886
- Species Limax lachensis Bérenguier, 1900
- Species Limax laevis O. F. Müller, 1774 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax lanceolatus Pallas, 1774 accepted as Branchiostoma lanceolatum (Pallas, 1774)
- Species Limax lartetii Dupuy, 1850 † accepted as Milax lartetii (Dupuy, 1850) †
- Species Limax legrandi Tate, 1881 accepted as Deroceras reticulatum (O. F. Müller, 1774)
- Species Limax leucopus P. Hesse, 1928 accepted as Limax graecus Simroth, 1889
- Species Limax lingulatus F. Sandberger, 1875 †
- Species Limax livonicus Schrenk, 1848 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax loczyi Lörenthey, 1906 †
- Species Limax lombricoides Morelet, 1845 accepted as Deroceras lombricoides (Morelet, 1845)
- Species Limax macedonicus P. Hesse, 1928 accepted as Limax graecus Simroth, 1889
- Species Limax maculatus Nunneley, 1837 accepted as Limax maximus Linnaeus, 1758
- Species Limax majoricensis Heynemann, 1863 accepted as Gigantomilax majoricensis (Heynemann, 1863)
- Species Limax marginatus O. F. Müller, 1774 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax marginatus Draparnaud, 1805 accepted as Tandonia rustica (Millet, 1843)
- Species Limax marinus Forsskål, 1775 accepted as Fiona pinnata (Eschscholtz, 1831)
- Species Limax marmoreus De Kay, 1840 accepted as Philomycus flexuolaris Rafinesque, 1820
- Species Limax martinianus Bourguignat, 1870
- Species Limax maurus Quoy & Gaimard, 1825 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax maximus Linnaeus, 1758
- Species Limax mayae Godwin-Austen, 1914
- Species Limax megalodontes Quoy & Gaimard, 1825 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax melitensis Lessona & Pollonera, 1882 accepted as Lehmannia melitensis (Lessona & Pollonera, 1882)
- Species Limax millipunctatus Pini, 1885
- Species Limax modestus Theobald, 1862 accepted as Anadenus altivagus (Theobald, 1862)
- Species Limax modioliformis F. Sandberger, 1880 † accepted as Lehmannia modioliformis (F. Sandberger, 1880) †
- Species Limax molestus F. W. Hutton, 1879 accepted as Deroceras reticulatum (O. F. Müller, 1774)
- Species Limax monolineolatus Bettoni, 1870
- Species Limax monregalensis Lessona & Pollonera, 1882
- Species Limax montanus Ingersoll, 1875 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax monticola O. Boettger, 1881 accepted as Gigantomilax monticola (O. Boettger, 1881)
- Species Limax mouensis Gassies, 1871 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax mrazeki Simroth, 1905 accepted as Malacolimax mrazeki (Simroth, 1905)
- Species Limax nitidus Morelet, 1845 accepted as Deroceras nitidum (Morelet, 1845)
- Species Limax noctilucus C. M. d'Orbigny, 1819
- Species Limax nyctelius Bourguignat, 1861 accepted as Letourneuxia nyctelia (Bourguignat, 1861)
- Species Limax obscurus Simroth, 1900 accepted as Limax vizzavonensis Falkner & Nitz, 2010
- Species Limax olivaceus A. Gould, 1852 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax oltinus Simroth, 1912 accepted as Gigantomilax koenigi (Simroth, 1912)
- Species Limax opalus Martyn, 1784 accepted as Cantharidus opalus (Martyn, 1784)
- Species Limax ordubadensis Simroth, 1902 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax pallidus Schrenk, 1848 accepted as Agriolimax pallidus (Schrenk, 1848)
- Species Limax papillosus Linnaeus, 1761 accepted as Aeolidia papillosa (Linnaeus, 1761)
- Species Limax parvulus Normand, 1852 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax pectinatus Selenka, 1865 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax perlucidus Quoy & Gaimard, 1832 accepted as Hyalimax perlucidus (Quoy & Gaimard, 1832)
- Species Limax perosinii Lessona & Pollonera, 1882
- Species Limax persicus Simroth, 1910 accepted as Caspilimax keyserlingi (E. von Martens, 1880)
- Species Limax pestaniensis Rähle, 1977 accepted as Limax conemenosi O. Boettger, 1882
- Species Limax phoeniciaca Bourguignat, 1852 accepted as Deroceras berytense (Bourguignat, 1852)
- Species Limax pironae Pini, 1876 accepted as Limax engadinensis Heynemann, 1863
- Species Limax plioligustica Sacco, 1889 †
- Species Limax poirieri Mabille, 1883 accepted as Ambigolimax valentianus (A. Férussac, 1821)
- Species Limax polipunctatus Pollonera, 1888
- Species Limax pollonerae Sacco, 1886 †
- Species Limax pollonerai [sic] † accepted as Limax pollonerae Sacco, 1886 †
- Species Limax polyptyelus Bourguignat, 1859 accepted as Milax gagates (Draparnaud, 1801)
- Species Limax primitivus Simroth, 1894 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax problematicus Deshayes, 1851 accepted as Parmarion problematicus (Deshayes, 1851)
- Species Limax psarus Bourguignat, 1861
- Species Limax pseudocinereoniger Schilthuizen, C. Thompson, de Vries, van Peursen, Reisinger, Paterno, Maestri, Marcolungo, Esposti, Delledonne & Njunjić, 2022
- Species Limax pseudoflavus N. J. Evans, 1978 accepted as Limacus ecarinatus (O. Boettger, 1881)
- Species Limax punctulatus Sordelli, 1870
- Species Limax pycnoblennius Bourguignat, 1861 accepted as Deroceras agreste (Linnaeus, 1758)
- Species Limax queenslandicus Hedley, 1888 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax rarotonganus Heynemann, 1871 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax raymondianus Bourguignat, 1861
- Species Limax redii Gerhardt, 1933
- Species Limax reticulatus O. F. Müller, 1774 accepted as Deroceras reticulatum (O. F. Müller, 1774)
- Species Limax retowskii Simroth, 1898 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax ruber Garsault, 1764 accepted as Arion ater ruber (Garsault, 1764)
- Species Limax rufus Linnaeus, 1758 accepted as Arion ater rufus (Linnaeus, 1758)
- Species Limax rustica Millet, 1843 accepted as Tandonia rustica (Millet, 1843)
- Species Limax salicium Bouillet, 1836 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax sandwichiensis Souleyet, 1852
- Species Limax sarnensis Heim & Nitz, 2009
- Species Limax satorinus A. Letourneux, 1884
- Species Limax satunini Simroth, 1912
- Species Limax scandens Normand, 1852 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax scheikovnikovi Simroth, 1912 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax schmidti Simroth, 1912 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax schwabi Frauenfeld, 1864 accepted as Bielzia coerulans (M. Bielz, 1851)
- Species Limax scopulorum J. C. Fabricius, 1779 accepted as Lehmannia marginata (O. F. Müller, 1774)
- Species Limax senensis Pollonera, 1890
- Species Limax serotinus Schrenk, 1848 accepted as Malacolimax tenellus (O. F. Müller, 1774)
- Species Limax setchuanensis Heude, 1885
- Species Limax seticus Wiktor & Bössneck, 2004
- Species Limax sidamoensis Rochebrune & Germain, 1904
- Species Limax simplex Simroth, 1898 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax sowerbyi A. Férussac, 1823 accepted as Tandonia sowerbyi (A. Férussac, 1823)
- Species Limax squammatinus Morelet, 1845 accepted as Geomalacus anguiformis (Morelet, 1845)
- Species Limax squamosus Bérenguier, 1900
- Species Limax stenurus Strebel & G. Pfeffer, 1880 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax strobeli Pini, 1876
- Species Limax stummeri Simroth, 1910
- Species Limax subalpinus Lessona, 1880
- Species Limax subfuscus Draparnaud, 1805 accepted as Arion subfuscus (Draparnaud, 1805)
- Species Limax svaneticus Simroth, 1912 accepted as Svanetia caucasica (Simroth, 1898)
- Species Limax sylvaticus Draparnaud, 1805 accepted as Limax maximus Linnaeus, 1758
- Species Limax talyschanus O. Boettger, 1886 accepted as Caspilimax keyserlingi (E. von Martens, 1880)
- Species Limax taurinensis Pollonera, 1888 †
- Species Limax tenellus O. F. Müller, 1774 accepted as Malacolimax tenellus (O. F. Müller, 1774)
- Species Limax tergipes Forsskål, 1775 accepted as Tergipes tergipes (Forsskål, 1775)
- Species Limax tetraquetra Pallas, 1788 accepted as Tritonia tetraquetra (Pallas, 1788)
- Species Limax tigris O. Boettger, 1886 accepted as Caspilimax keyserlingi (E. von Martens, 1880)
- Species Limax tigvenius Grossu, 1968 accepted as Malacolimax tenellus (O. F. Müller, 1774)
- Species Limax togata A. Gould, 1841 accepted as Philomycus togatus (A. Gould, 1841)
- Species Limax tschapecki Simroth, 1886
- Species Limax tunicata A. Gould, 1841 accepted as Deroceras reticulatum (O. F. Müller, 1774)
- Species Limax turkestanus Simroth, 1898 accepted as Turcomilax turkestanus (Simroth, 1898)
- Species Limax umbrosus R. A. Philippi, 1844 accepted as Limax flavus Linnaeus, 1758
- Species Limax unicolor Heynemann, 1862
- Species Limax valdivianus R. A. Philippi, 1858 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax valentianus A. Férussac, 1821 accepted as Ambigolimax valentianus (A. Férussac, 1821)
- Species Limax valentini Simroth, 1898 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax varians A. Adams, 1868 accepted as Deroceras varians (A. Adams, 1868)
- Species Limax variegatus Draparnaud, 1801 accepted as Limacus flavus (Linnaeus, 1758)
- Species Limax veranyanus Bourguignat, 1862 accepted as Deroceras agreste (Linnaeus, 1758)
- Species Limax veronensis Lessona & Pollonera, 1882
- Species Limax versicolor Hazay, 1885
- Species Limax viridis Theobald, 1864 accepted as Hyalimax viridis (Theobald, 1864)
- Species Limax viridis Morelet, 1845 accepted as Geomalacus anguiformis (Morelet, 1845)
- Species Limax vizzavonensis Falkner & Nitz, 2010
- Species Limax voronovi Simroth, 1912 accepted as Gigantomilax monticola armeniacus (Simroth, 1886)
- Species Limax weinlandi Heynemann, 1863 accepted as Deroceras laeve (O. F. Müller, 1774)
- Species Limax wohlberedti Simroth, 1900
- Species Limax wolterstorffi Simroth, 1900
- Species Limax zilchi Grossu & Lupu, 1962 accepted as Limax cinereoniger Wolf, 1803
- Genus Macroheynemannia Simroth, 1888 accepted as Limax Linnaeus, 1758
- Genus Malacolimax Malm, 1868 (4)
- Genus Monochroma Simroth, 1896 accepted as Gigantomilax (Monochroma) Simroth, 1896
- Genus Opilolimax Pini, 1877 accepted as Limax Linnaeus, 1758
- Genus Plepticolimax Malm, 1868 accepted as Limacus Lehmann, 1864
- Genus Prolimax Simroth, 1906 accepted as Gigantomilax O. Boettger, 1883
- Genus Pseudarion Germain, 1912 accepted as Gigantomilax (Monochroma) Simroth, 1896
- Genus Simrothia Clessin, 1884 accepted as Limacus Lehmann, 1864
- Genus Stabilea Pini, 1877 accepted as Limax Linnaeus, 1758
- Genus Svanetia P. Hesse, 1926 (1)
- Genus Turcomilax Simroth, 1902 (6)
- Genus Vitrinoides Simroth, 1891 accepted as Gigantomilax (Vitrinoides) Simroth, 1891
- Genus Weltersia Fo. Giusti, Lesicki, Benocci, Pieńkowska & Manganelli, 2021 (1)
- Family Vitrinidae Fitzinger, 1833 (132)
- Genus Mennoia Harzhauser & Neubauer, 2018 † (1)
- Genus Neubertella Harzhauser & Neubauer, 2018 † (1)
- Superfamily Limacoidei incertae sedis (3)
- Superfamily Parmacelloidea P. Fischer, 1856 (1855)
- Superfamily Trochomorphoidea Mörch, 1864 (1 190)
- Superfamily Zonitoidea Mörch, 1864 (118)
- Family Milacidae Ellis, 1926 (55)
- Family Parmacellidae P. Fischer, 1856 (1855) (26)
- Family Trigonochlamydidae Hesse, 1882 (11)
- Infraorder Oleacinoidei (497)
- Infraorder Orthalicoidei (1 578)
- Infraorder Partuloinei accepted as Pupilloidei
- Infraorder Pupilloidei (3 436)
- Infraorder Rhytidoidei (581)
- Infraorder Sagdoinei accepted as Helicoidei
- Infraorder Succineoidei (384)
- Suborder Orthurethra accepted as Pupilloidei
- Suborder Scolodontina (165)
- Suborder Sigmurethra accepted as Helicina
- Suborder Stylommatophora incertae sedis (75)
- Order Systellommatophora (224)
- Superorder Hygrophila (2 005)
- Superorder Pneumopulmonata
- Superorder Pylopulmonata (4 285)
- Superorder Sacoglossa (391)
- Superorder Siphonarimorpha (163)
- Order Anaspidea accepted as Aplysiida
- Order Aplysiida (101)
- Order Aplysiomorpha accepted as Aplysiida
- Order Archaeopulmonata accepted as Siphonarioidea Gray, 1827
- Order Bullomorpha accepted as Cephalaspidea
- Order Cephalaspidea (1 034)
- Order Heterostropha accepted as Pyramidellidae J. E. Gray, 1840
- Order Pteropoda (414)
- Order Runcinacea accepted as Runcinida
- Order Runcinida (80)
- Order Tectibranchiata
- Order Thecosomata
- Order Umbraculida (15)
- Superorder Euthyneura incertae sedis
- Infraclass Heterobranchia incertae sedis (478)
- Infraclass Mesoneura (108)
- Infraclass Opisthobranchia
- Infraclass Pulmonata
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (1 914)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (511)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (6 782)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (372)
- Class Monoplacophora (229)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 377)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (752)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata
