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   This Mollusc classification only concerns species from Western Europe; thus, non-European and fossil species are excluded. Only the classification for the species presented in this website is fully mentionned; else, if a species is not referred to in this website, this classification is incomplete.

Classification of West-European Molluscs

Snails, sea slugs, cephalopods

  • Class Aplacophora
  • Class Polyplacophora
  • Subclass Neoloricata
  • Order Lepidopleurida
  • Order Ischnochitonida
  • Family Ischnochitonidae
  • See photo of Tonicella rubra Tonicella rubra (Linnaeus, 1767)
  • Family Chaetopleuridae
  • See photo of Chaetopleura angulata Chaetopleura angulata (Spengler, 1797)
  • Order Acanthochitonida
  • Family  Acanthochitonidae
  • See photo of Acanthochitona cf. crinita Acanthochitona cf. crinita (Pennant, 1777)
  • See photo of Acanthochitona fascicularis Acanthochitona fascicularis (Linnaeus, 1767) 
  • Class Monoplacophora
  • Class Gastropoda
  • Order Eupulmonata
  • Order Heterostropha
  • Order Neotaenioglossa
  • Subclass Prosobranchia
  • Order Archaeogastropoda
  • Superfamily Pleurotomariacea
  • Family Haliotidae Rafinesque, 1815
  • See photo of Haliotis tuberculata Haliotis tuberculata Linnaeus, 1758
  • Superfamily Fissurellacea
  • Family Fissurellidae Fleming, 1822
  • See photo of Diodora graeca Diodora graeca (Linnaeus, 1758)
  • Superfamily Patellacea
  • Family Patellidae Rafinesque, 1815
  • See photo of Patella vulgata Patella vulgata Linnaeus, 1758
  • See photo of Ansates pellucida Ansates pellucida (Linnaeus, 1758)
  • Superfamily Trochacea
  • Family Trochidae Rafinesque, 1815
  • See photo of Calliostoma laugieri laugieri Calliostoma laugieri laugieri (Payraudeau, 1826)
  • See photo of Calliostoma zizyphinum Calliostoma zizyphinum (Linné, 1758)
  • See photo of Gibbula cineraria Gibbula cineraria (Linnaeus, 1758)
  • See photo of Gibbula magus Gibbula magus (Linnaeus, 1758)
  • See photo of Gibbula umbilicalis Gibbula umbilicalis (da Costa, 1778)
  • See photo of Jujubinus exasperatus Jujubinus exasperatus (Pennant, 1777)
  • See photo of Osilinus turbinatus Osilinus turbinatus (Von Born, 1778)
  • Family Tricoliidae
  • See photo of Tricolia pullus Tricolia pullus (Linnaeus, 1758)
  • Order Mesogastropoda
  • Superfamily Littorinacea
  • Family Littorinidae Gray, 1840
  • See photo of Lacuna parva Lacuna parva (da Costa, 1778)
  • See photo of Lacuna vincta Lacuna vincta (Montagu, 1803)
  • See photo of Littorina obtusata Littorina obtusata (Linnaeus, 1758)
  • Superfamily Cerithiacea
  • Family Vermetidae Rafinesque, 1815
  • See photo of Serpulorbis arenarius Serpulorbis arenarius (Linné, 1767)
  • Superfamily Crepiduloidea
  • Family Calyptraeidae
  • See photo of Calyptraea chinensis Calyptraea chinensis (Linnaeus, 1758)
  • See photo of Crepidula fornicata Crepidula fornicata (Linnaeus, 1758)
  • Superfamily Cypraeacea
  • Family Cypraeidae Rafinesque, 1815
  • See photo of Luria lurida Luria lurida (Linnaeus, 1758)
  • Family Ovulidae Fleming, 1822
  • See photo of Neosimnia spelta Neosimnia spelta (Linnaeus, 1758)
  • See photo of Simnia patula Simnia patula (Pennant, 1777)
  • Family Triviidae Troschel, 1863
  • See photo of Trivia arctica Trivia arctica (Pulteney, 1799)
  • See photo of Trivia monacha Trivia monacha (da Costa, 1778)
  • Superfamily Tonnacea
  • Family Ranellidae Powell, 1933
  • See photo of Charonia lampas Charonia lampas (Linnaeus, 1758)
  • Superfamily Eulimacea
  • Family Eulimidae
  • See photo of Melanella polita Melanella polita (Linnaeus, 1758)
  • Superfamily Epitoniacea
  • Family Epitoniidae S.S. Berry, 1910
    • Order Neogastropoda
    • Superfamily Muricacea
    • Family Muricidae da Costa, 1776
    • See photo of Hexaplex trunculus Hexaplex trunculus (Linné, 1758)
    • See photo of Nucella lapillus Nucella lapillus (Linnaeus, 1758)
    • See photo of Ocenebra erinacea Ocenebra erinacea (Linnaeus, 1758)
    • See photo of Stramonita haemastoma Stramonita haemastoma (Linnaeus, 1767)
    • Family Nassariidae Iredale, 1916
    • See photo of Nassarius incrassatus Nassarius incrassatus (Ström, 1768)
    • See photo of Nassarius cf. pygmaeus Nassarius cf. pygmaeus (Lamarck, 1822)
    • See photo of Nassarius reticulatus Nassarius reticulatus (Linnaeus, 1758)
    • Subclass Opisthobranchia
    • Order Cephalaspidea
    • Superfamily Philinoidea
    • Family Cylichnidae
    • Order Sacoglossa
    • Superfamily Elysioidea
    • Family Elysiidae
    • See photo of Elysia timida Elysia timida (Risso, 1818)
    • See photo of Elysia viridis Elysia viridis (Montagu, 1804)
    • See photo of Thuridilla hopei Thuridilla hopei (Vérany, 1853)
    • Superfamily Limapontioidea
    • Family Hermaeidae
    • See photo of Hermaea bifida Hermaea bifida (Montagu, 1815)
    • See photo of Hermaea variopicta Hermaea variopicta (Costa A., 1869)
    • Order Acochlidea
    • Order Anaspidea
    • Superfamily Aplysioidea
    • Family Aplysiidae
    • See photo of Aplysia punctata Aplysia punctata (Cuvier, 1803)
    • Order Rhodopemorpha
    • Order Notaspidea
    • Superfamily Pleurobranchoidea
    • Family Pleurobranchidae
    • See photo of Berthella plumula Berthella plumula (Montagu, 1803)
    • See photo of Berthellina edwardsii Berthellina edwardsii (Vayssière, 1896)
    • Order Thecosomata
    • Order Gymnosomata
    • Order Nudibranchia
    • Suborder Dorinina
    • Family Goniodorididae
    • See photo of Goniodoris nodosa Goniodoris nodosa (Montagu, 1808)
    • See photo of Okenia elegans Okenia elegans (Leuckart, 1828)
    • See photo of Okenia mediterranea Okenia mediterranea (Von Ihering, 1886)
    • See photo of Trapania maculata Trapania maculata Haefelfinger, 1960
    • See photo of Trapania pallida Trapania pallida Kress, 1968
    • See photo of Trapania tartanella Trapania tartanella (Von Ihering, 1886)
    • Family Onchidorididae
    • See photo of Acanthodoris pilosa Acanthodoris pilosa (Abildgaard in Muller, 1789)
    • See photo of Diaphorodoris luteocincta Diaphorodoris luteocincta (Sars M., 1870)
    • See photo of Diaphorodoris papillata Diaphorodoris papillata Portmann & Sandmeier, 1960
    • See photo of Onchidoris cf. neapolitana Onchidoris cf. neapolitana (delle Chiaje, 1841)
    • Family Polyceridae
    • See photo of Greilada elegans Greilada elegans Bergh, 1894
    • See photo of Polycera faeroensis Polycera faeroensis Lemche, 1929
    • See photo of Polycera quadrilineata Polycera quadrilineata (Müller O.F., 1776)
    • See photo of Thecacera pennigera Thecacera pennigera (Montagu, 1815)
    • See photo of Crimora papillata Crimora papillata Alder & Hancock, 1862
    • See photo of Limacia clavigera Limacia clavigera (Müller O.F., 1776)
    • Family Dorididae
    • See photo of Peltodoris atromaculata Peltodoris atromaculata Bergh, 1880
    • See photo of Discodoris rosi Discodoris rosi Ortea, 1979
    • See photo of Doris pseudoargus Doris pseudoargus Rapp, 1827
    • See photo of Doris verrucosa Doris verrucosa Linneaus, 1758
    • See photo of Geitodoris planata Geitodoris planata (Alder & Hancock, 1846)
    • See photo of Jorunna tomentosa Jorunna tomentosa (Cuvier, 1804)
    • See photo of Platydoris argo Platydoris argo (Linnaeus, 1767)
    • See photo of Rostanga rubra Rostanga rubra (Risso, 1818)
    • Family Chromodorididae
    • See photo of Cadlina laevis Cadlina laevis (Linnaeus, 1767)
    • See photo of Cadlina pellucida Cadlina pellucida (Risso, 1826)
    • See photo of Chromodoris krohni Chromodoris krohni (Verany, 1846)
    • See photo of Chromodoris luteorosea Chromodoris luteorosea (Rapp, 1827)
    • See photo of Chromodoris purpurea Chromodoris purpurea (Risso in Guérin, 1831)
    • See photo of Hypselodoris cantabrica Hypselodoris cantabrica Bouchet & Ortea, 1980
    • See photo of Hypselodoris orsinii Hypselodoris orsinii (Vérany, 1846)
    • See photo of Hypselodoris tricolor Hypselodoris tricolor (Cantraine, 1835)
    • See photo of Hypselodoris villafranca Hypselodoris villafranca (Risso, 1818)
    • Family Dendrodorididae
    • See photo of Dendrodoris limbata Dendrodoris limbata (Cuvier, 1804)
    • See photo of Doriopsilla areolata Doriopsilla areolata Bergh, 1880
    • See photo of Doriopsilla pelseneeri Doriopsilla pelseneeri d'Oliveira, 1895
    • Suborder Dendronotina
    • Family Tritoniidae
    • See photo of Marionia blainvillea Marionia blainvillea (Risso, 1818)
    • See photo of Tritonia hombergii Tritonia hombergii Cuvier, 1802
    • See photo of Tritonia lineata Tritonia lineata Alder & Hancock, 1848
    • See photo of Tritonia nilsodhneri Tritonia nilsodhneri Marcus Ev., 1983
    • See photo of Tritonia striata Tritonia striata Haefelfinger, 1963
    • Family Hancockiidae
    • See photo of Hancockia uncinata Hancockia uncinata (Hesse, 1872)
    • Family Dotidae
    • See photo of Doto fragilis Doto fragilis (Forbes, 1838)
    • See photo of Doto millbayana Doto millbayana Lemche, 1976
    • See photo of Doto pinnatifida Doto pinnatifida (Montagu, 1804)
    • Family Lomanotidae
    • See photo of Lomanotus genei Lomanotus genei Vérany, 1846
    • Suborder Arminina
    • Family Zephyrinidae
    • See photo of Janolus cristatus Janolus cristatus (delle Chiaje, 1841)
    • Suborder Aeolidina
    • Family Flabellinidae
    • See photo of Calmella cavolini Calmella cavolini (Vérany, 1846)
    • See photo of Flabellina affinis Flabellina affinis (Gmelin, 1791)
    • See photo of Flabellina babai Flabellina babai Schmekel, 1972
    • See photo of Flabellina ischitana Flabellina ischitana Hirano & Thompson, 1990
    • See photo of Flabellina lineata Flabellina lineata (Lovén, 1846)
    • See photo of Flabellina pedata Flabellina pedata (Montagu, 1815)
    • See photo of Flabellina verrucosa Flabellina verrucosa (M. Sars, 1829)
    • See photo of Flabellina sp. Flabellina sp. 
    • Family Eubranchidae
    • See photo of Eubranchus farrani Eubranchus farrani (Alder & Hancock, 1844)
    • See photo of Eubranchus pallidus Eubranchus pallidus (Alder & Hancock, 1842)
    • Family Aeolidiidae
    • See photo of Aeolidia papillosa Aeolidia papillosa (Linnaeus, 1761)
    • See photo of Aeolidiella alderi Aeolidiella alderi (Cocks, 1852)
    • See photo of Aeolidiella sanguinea Aeolidiella sanguinea (Norman, 1877)
    • See photo of Baeolidia nodosa Baeolidia nodosa (Haefelfinger & Stamm, 1958)
    • See photo of Berghia verrucicornis Berghia verrucicornis (Costa A., 1867)
    • See photo of Spurilla neapolitana Spurilla neapolitana (delle Chiaje, 1841)
    • Family Glaucidae
    • See photo of Babakina anadoni Babakina anadoni (Ortea, 1979)
    • See photo of Caloria elegans Caloria elegans (Alder & Hancock, 1845)
    • See photo of Cratena peregrina Cratena peregrina (Gmelin, 1791)
    • See photo of Dondice banyulensis Dondice banyulensis Portmann & Sandmeier, 1960
    • See photo of Facelina annulicornis Facelina annulicornis (Chamisso & Eysenhardt, 1821)
    • See photo of Facelina auriculata Facelina auriculata (Müller, 1776)
    • See photo of Facelinopsis marioni Facelinopsis marioni (Vayssière, 1888)
    • See photo of Favorinus branchialis Favorinus branchialis (Rathke, 1806)
    • See photo of Piseinotecus gabinierei Piseinotecus gabinierei (Vicente, 1975)
    • See photo of Pruvotfolia pselliotes Pruvotfolia pselliotes (Labbé, 1923)
    • Subclass Pulmonata
    • Order Systellommatophora
    • Order Archaeopulmonata
    • Order Basommatophora
    • Order Stylommatophora
    • Class Cephalopoda
    • Subclass Nautiloidea Agassiz, 1847
    • Order Nautilida Agassiz, 1847
    • Subclass Coleoidea Bather, 1888
    • Superorder Decapodiformes Young et al., 1998
    • Order Spirulida Pompeckj, 1912
    • Order Sepiida Gray, 1849
    • Suborder Sepiina Gray, 1849
    • Family Sepiidae Lamarck, 1809
    • See photo of Sepia officinalis Sepia officinalis Linnaeus, 1758
    • Order Sepiolida Fioroni, 1981
    • Family Sepiolidae Leach, 1817
    • See photo of Sepiola atlantica Sepiola atlantica d’Orbigny, 1839
    • Order Teuthida Naef, 1916
    • Superorder Octopodiformes Young et al., 1998
    • Order Vampyromorphida Pickford, 1939
    • Order Octopoda Leach, 1817 - octopuses
    • Suborder Incirrina Grimpe, 1916
    • Family Octopodidae Rafinesque, 1815
    • Class Bivalvia
    • Subclass Protobranchia
    • Order Nuculoida
    • Order Solemyoida
    • Subclass Pteriomorphia
    • Superorder Isofilibranchia
    • Order Mytiloida Férussac, 1822
    • Superfamily Mytilacea
    • Family Mytilidae Rafinesque, 1815
    • See photo of Lithophaga lithophaga Lithophaga lithophaga (Linnaeus, 1758)
    • See photo of Modiolus barbatus Modiolus barbatus (Linnaeus, 1758)
    • See photo of Mytilus edulis Mytilus edulis Linnaeus, 1758
    • See photo of Mytilus galloprovincialis Mytilus galloprovincialis Lamarck, 1819
    • Superorder Prionodonta
    • Order Arcoida
    • Superfamily Arcacea
    • Family Arcidae Lamarck, 1809
    • See photo of Arca noae Arca noae Linnaeus, 1758
    • Superorder Eupteriomorphia
    • Order Pterioida
    • Suborder Pteriina
    • Superfamily Pteriacea
    • Family Pteriidae Gray, 1847
    • Suborder Pinnina
    • Superfamily Pinnacea
    • Family Pinnidae Leach, 1819
    • See photo of Pinna nobilis Pinna nobilis Linnaeus, 1758
    • See photo of Pinna rudis Pinna rudis Linnaeus, 1758
    • Order Limoida
    • Superfamily Limacea
    • Family Limidae Rafinesque, 1815
    • See photo of Lima lima Lima lima (Linnaeus, 1758)
    • See photo of Limaria hians Limaria hians (Gmelin, 1791)
    • Order Ostreoida
    • Suborder Ostreina
    • Superfamily Ostreacea
    • Family Ostreidae Rafinesque, 1815
    • See photo of Crassostrea gigas Crassostrea gigas (Thunberg, 1793)
    • See photo of Ostrea edulis Ostrea edulis Linnaeus, 1758
    • Suborder Pectinina
    • Superfamily Pectinacea
    • Family Pectinidae Rafinesque, 1815
    • See photo of Aequipecten opercularis Aequipecten opercularis (Linnaeus, 1758)
    • See photo of Chlamys varia Chlamys varia (Linné, 1758)
    • See photo of Pecten maximus Pecten maximus (Linnaeus, 1758)
    • Subclass Paleoheterodonta
    • Order Trigonioida
    • Order Unionoida
    • Subclass Heterodonta
    • Order Hippuritoida
    • Order Veneroida H. & A. Adams, 1856
    • Superfamily Cardiacea Lamarck, 1809
    • Family Cardiidae Lamarck, 1809
    • See photo of Acanthocardia echinata Acanthocardia echinata (Linnaeus, 1758)
    • See photo of Acanthocardia tuberculata Acanthocardia tuberculata (Linnaeus, 1758)
    • See photo of Cerastoderma edule Cerastoderma edule (Linnaeus, 1758)
    • See photo of Laevicardium crassum Laevicardium crassum (Gmelin, 1791)
    • Superfamily Mactracea Lamarck, 1809
    • Family Mactridae Lamarck, 1809
    • See photo of Lutraria lutraria Lutraria lutraria (Linnaeus, 1758)
    • Superfamily Veneracea Rafinesque, 1815
    • Family Veneridae Rafinesque, 1815
    • See photo of Clausinella fasciata Clausinella fasciata (da Costa, 1778)
    • See photo of Dosinia exoleta Dosinia exoleta (Linnaeus, 1758)
    • See photo of Ruditapes decussatus Ruditapes decussatus (Linnaeus, 1758)
    • See photo of Venus casina Venus casina Linnaeus, 1758
    • See photo of Venus verrucosa Venus verrucosa Linnaeus, 1758
    • Order Myoida Stoliczka, 1870
    • Subclass Anomalodesmata
    • Order Pholadomyoida
    • Class Scaphopoda

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