| Class SOLENOGASTRES |
| Order CAVIBELONIA |
| Family Rhopalomeniidae |
| Rhopalomenia Simroth, 1893 |
| Rhopalomenia aglaopheniae (Kowalevsky & Marion, 1887) |
| Class POLYPLACOPHORA |
| Order NEOLORICATA |
| Family Leptochitonidae |
| Leptochiton J E Gray, 1847 |
| Leptochiton asellus (Gmelin, 1791) |
| Family Ischnochitonidae |
| Callochiton J E Gray, 1847 |
| Callochiton septemvalvis (Montagu, 1803) |
| Tonicella Carpenter, 1873 |
| Tonicella marmorea (O Fabricius, 1780) |
| Boreochiton ruber (Linnaeus, 1767) |
| Family Acanthochitonidae |
| Acanthochitona J E Gray, 1821 |
| Acanthochitona fascicularis (Linnaeus, 1767) |
| Class GASTROPODA |
| Order ARCHAEOGASTROPODA |
| Family Fissurellidae |
| Emarginula Lamarck, 1801 |
| Emarginula rosea (Bell, 1824) |
| Diodora J E Gray, 1821 |
| Diodora graeca (Linnaeus, 1758) |
| Family Trochidae |
| Gibbula Risso, 1826 |
| Gibbula magus (Linnaeus, 1758) |
| Gibbula tumida (Montagu, 1803) |
| Gibbula cineraria (Linnaeus, 1758) |
| Calliostoma Swainson, 1840 |
| Calliostoma zizyphinum (Linnaeus, 1758) |
| Order PATELLOGASTROPODA |
| Family Lottiidae |
| Tectura J E Gray, 1847 |
| Testudinalia testudinalis (O F Müller, 1776) |
| Tectura virginea (O F Müller, 1776) |
| Family Patellidae |
| Helcion Montfort, 1810 |
| Patella pellucida Linnaeus, 1758 |
| Order MESOGASTROPODA |
| Family Turritellidae |
| Turritella Lamarck, 1799 |
| Turritella communis (Risso, 1826) |
| Family Littorinidae |
| Lacuna Turton, 1827 |
| Lacuna crassior (Montagu, 1803) |
| Family Rissoidae |
| Rissoa Desmarest, 1814 |
| Rissoa membranacea (J Adams, 1800) |
| Family Aporrhaiidae |
| Aporrhais da Costa, 1778 |
| Aporrhais pespelecani (Linnaeus, 1758) |
| Family Triviidae |
| Trivia J E Gray in Broderip, 1837 |
| Trivia arctica (Pulteney, 1799) |
| Family Naticidae |
| Polinices Montfort, 1810 |
| Euspira nitida (Donovan, 1804) |
| Family Epitoniidae |
| Epitonium Röding, 1798 |
| Epitonium clathrus (Linnaeus, 1758) |
| Order NEOGASTROPODA |
| Family Muricidae |
| Ocenebra J E Gray, 1847 |
| Ocenebra erinaceus (Linnaeus, 1758) |
| Order CEPHALASPIDEA |
| Family Scaphandridae |
| Scaphander Montfort, 1810 |
| Scaphander lignarius (Linnaeus, 1758) |
| Family Philinidae |
| Philine Ascanius, 1772 |
| Philine (Philine) quadripartita (Ascanius, 1772) |
| Philine pruinosa (Clark, 1827) |
| Family Diaphanidae |
| Colpodaspis M Sars, 1870 |
| Colpodaspis pusilla M Sars, 1870 |
| Order SACOGLOSSA |
| Family Elysiidae |
| Elysia Risso, 1818 |
| Elysia viridis (Montagu, 1804) |
| Family Limapontiidae |
| Limapontia Johnston, 1836 |
| Limapontia capitata (O F Müller, 1774) |
| Order ANASPIDEA |
| Family Aplysiidae |
| Aplysia Linnaeus, 1767 |
| Aplysia punctata (Cuvier, 1803) |
| Order NOTASPIDEA |
| Family Pleurobranchidae |
| Pleurobranchus Cuvier, 1804 |
| Pleurobranchus membranaceus (Montagu, 1815) |
| Order NUDIBRANCHIA |
| Family Goniodorididae |
| Goniodoris Forbes & Goodsir, 1839 |
| Goniodoris castanea Alder & Hancock, 1845 |
| Goniodoris nodosa (Montagu, 1808) |
| Family Okeniidae |
| Okenia Menke, 1830 |
| Okenia aspersa (Alder & Hancock, 1845) |
| Okenia elegans (Leuckart, 1828) |
| Okenia leachii (Alder & Hancock, 1854) |
| Ancula Lovén, 1846 |
| Ancula gibbosa (Risso, 1818) |
| Trapania Pruvot-Fol, 1931 |
| Trapania maculata Haefelfinger, 1960 |
| Trapania pallida Kress, 1968 |
| Trapania tartanella (Ihering, 1886) |
| Family Onchidorididae |
| Onchidoris Blainville, 1816 |
| Onchidoris bilamellata (Linnaeus, 1767) |
| Onchidoris depressa (Alder & Hancock, 1842) |
| Onchidoris inconspicua (Alder & Hancock, 1851) |
| Onchidoris muricata (O F Müller, 1776) |
| Onchidoris oblonga (Alder & Hancock, 1845) |
| Onchidoris pusilla (Alder & Hancock, 1845) |
| Onchidoris sparsa (Alder & Hancock, 1846) |
| Diaphorodoris Iredale & O'Donoghue, 1923 |
| Diaphorodoris luteocincta (M Sars, 1870) |
| Acanthodoris J E Gray, 1850 |
| Acanthodoris pilosa (Abildgaard in O F Müller, 1789) |
| Adalaria Bergh, 1878 |
| Adalaria loveni (Alder & Hancock, 1862) |
| Adalaria proxima (Alder & Hancock, 1854) |
| Family Triophidae |
| Crimora Alder & Hancock, 1862 |
| Crimora papillata Alder & Hancock, 1862 |
| Family Aegiretidae |
| Aegires Lovén, 1844 |
| Aegires punctilucens (Orbigny, 1837) |
| Family Polyceridae |
| Polycera Cuvier, 1817 |
| Polycera faeroensis Lemche, 1929 |
| Polycera quadrilineata (O F Müller, 1776) |
| Greilada Bergh, 1894 |
| Greilada elegans Bergh, 1894 |
| Limacia O F Müller, 1781 |
| Limacia clavigera (O F Müller, 1776) |
| Palio J E Gray, 1857 |
| Palio dubia (M Sars, 1829) |
| Palio nothus (Johnston, 1838) |
| Thecacera Fleming, 1828 |
| Thecacera pennigera (Montagu, 1813) |
| Family Chromodorididae |
| Cadlina Bergh, 1878 |
| Cadlina laevis (Linnaeus, 1767) |
| Family Aldisidae |
| Aldisa Bergh, 1878 |
| Aldisa zetlandica (Alder & Hancock, 1854) |
| Family Rostangidae |
| Rostanga Bergh, 1879 |
| Rostanga rubra (Risso, 1818) |
| Family Dorididae |
| Doris Linnaeus, 1758 |
| Doris sticta Iredale & O'Donoghue |
| Family Archidorididae |
| Archidoris Bergh, 1878 |
| Archidoris pseudoargus (Rapp, 1827) |
| Atagema J E Gray, 1850 |
| Atagema gibba Pruvot-Fol, 1951 |
| Family Discodorididae |
| Geitodoris Bergh, 1891 |
| Geitodoris planata (Alder & Hancock, 1846) |
| Family Kentrodorididae |
| Jorunna Bergh, 1876 |
| Jorunna tomentosa (Cuvier, 1804) |
| Family Arminidae |
| Armina Rafinesque, 1814 |
| Armina loveni (Bergh, 1860) |
| Family Janolidae |
| Janolus Bergh, 1884 |
| Antiopella cristata (delle Chiaje, 1841) |
| Janolus hyalinus (Alder & Hancock, 1854) |
| Proctonotus Alder, 1844 |
| Proctonotus mucroniferus (Alder & Hancock, 1844) |
| Family Heroidae |
| Hero Alder & Hancock, 1855 |
| Hero formosa (Lovén, 1841) |
| Family Tritoniidae |
| Tritonia Cuvier, 1797 |
| Tritonia hombergii (Cuvier, 1803) |
| Duvaucelia lineata (Alder & Hancock, 1848) |
| Duvaucelia manicata (Deshayes, 1853) |
| Duvaucelia odhneri Tardy, 1963 |
| Duvaucelia plebeia (Johnston, 1828) |
| Family Lomanotidae |
| Lomanotus Verany, 1844 |
| Lomanotus genei Verany, 1846 |
| Lomanotus marmoratus (Alder & Hancock, 1845) |
| Family Scyllaeidae |
| Scyllaea Linnaeus, 1758 |
| Scyllaea pelagica Linnaeus, 1758 |
| Family Hancockiidae |
| Hancockia Gosse, 1877 |
| Hancockia uncinata (Hesse, 1872) |
| Family Dendronotidae |
| Dendronotus Alder & Hancock, 1845 |
| Dendronotus frondosus (Ascanius, 1774) |
| Family Dotidae |
| Doto Oken, 1815 |
| Doto coronata (Gmelin, 1791) |
| Doto cuspidata Alder & Hancock, 1862 |
| Doto dunnei Lemche, 1976 |
| Doto eireana Lemche, 1976 |
| Doto fragilis (Forbes, 1838) |
| Doto hydrallmaniae Morrow, Thorpe & Picton, 1992 |
| Doto hystrix Picton & Brown, 1981 |
| Doto koenneckeri Lemche, 1976 |
| Doto lemchei Ortea & Urgorri, 1978 |
| Doto maculata (Montagu, 1804) |
| Doto millbayana Lemche, 1976 |
| Doto onusta Hesse, 1872 |
| Doto pinnatifida (Montagu, 1804) |
| Doto sarsiae Morrow, Thorpe & Picton, 1992 |
| Doto tuberculata Lemche, 1976 |
| Family Embletoniidae |
| Embletonia Alder & Hancock, 1851 |
| Embletonia pulchra (Alder & Hancock, 1844) |
| Family Flabellinidae |
| Coryphella J E Gray in M E Gray, 1850 |
| Coryphella rufibranchialis (Johnston, 1832) |
| Microchlamylla gracilis (Alder & Hancock, 1844) |
| Fjordia browni Picton, 1980 |
| Fjordia chriskaugei Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017 |
| Fjordia lineata (Lovén, 1846) |
| Flabellina Voigt, 1834 |
| Edmundsella pedata (Montagu, 1815) |
| Carronella pellucida (Alder & Hancock, 1843) |
| Family Tergipedidae |
| Tergipes Cuvier, 1805 |
| Tergipes tergipes (Forsskål, 1775) |
| Cuthona Alder & Hancock, 1855 |
| Rubramoena amoena (Alder & Hancock, 1845) |
| Rubramoena rubescens (Picton & Brown, 1978) |
| Cuthona nana (Alder & Hancock, 1842) |
| Cuthonella concinna (Alder & Hancock, 1843) |
| Diaphoreolis viridis (Forbes, 1840) |
| Trinchesia caerulea (Montagu, 1804) |
| Trinchesia foliata (Forbes & Goodsir, 1839) |
| Trinchesia genovae (O'Donoghue, 1926) |
| Catriona aurantia (Alder & Hancock, 1842) |
| Zelentia pustulata (Alder & Hancock, 1854) |
| Tenellia A Costa, 1866 |
| Tenellia adspersa (Nordmann, 1844) |
| Family Eubranchidae |
| Eubranchus Forbes, 1838 |
| Capellinia fustifera (Lovén, 1846) |
| Eubranchus exiguus (Alder & Hancock, 1848) |
| Eubranchus farrani (Alder & Hancock, 1844) |
| Eubranchus pallidus (Alder & Hancock, 1842) |
| Eubranchus tricolor Forbes, 1838 |
| Eubranchus vittatus (Alder & Hancock, 1842) |
| Eubranchus sp. |
| Family Cumanotidae |
| Cumanotus Odhner, 1907 |
| Cumanotus beaumonti (Eliot, 1906) |
| Family Fionidae |
| Fiona Alder & Hancock in Forbes & Hanley, 1851 |
| Fiona pinnata (Eschscholtz, 1831) |
| Family Calmidae |
| Calma Alder & Hancock, 1855 |
| Calma glaucoides (Alder & Hancock, 1854) |
| Family Pseudovermidae |
| Pseudovermis Periaslavzeff, 1891 |
| Pseudovermis boadeni Salvini-Plawen & Sterrer, 1968 |
| Family Facelinidae |
| Facelina Alder & Hancock, 1855 |
| Facelina annulicornis (Chamisso & Eysenhardt, 1821) |
| Facelina auriculata (O F Müller, 1776) |
| Facelina bostoniensis (Couthouy, 1838) |
| Facelina dubia Pruvot-Fol, 1949 |
| Caloria Trinchese, 1888 |
| Caloria elegans (Alder & Hancock, 1845) |
| Family Favorinidae |
| Favorinus J E Gray, 1850 |
| Favorinus blianus Lemche & Thompson, 1974 |
| Favorinus branchialis (Rathke, 1806) |
| Dicata Schmekel, 1967 |
| Dicata odhneri Schmekel, 1967 |
| Family Aeolidiidae |
| Aeolidia Cuvier, 1798 |
| Aeolidia filomenae Kienberger, Carmona, Pola, Padula, Gosliner & Cervera, 2016 |
| Aeolidiella Bergh, 1867 |
| Aeolidiella alderi (Cocks, 1852) |
| Aeolidiella glauca (Alder & Hancock, 1845) |
| Aeolidiella sanguinea (Norman, 1877) |
| Class PELECYPODA |
| Order NUCULOIDA |
| Family Nuculidae |
| Nucula Lamarck, 1799 |
| Nucula nitidosa (Winckworth, 1930) |
| Nucula nucleus (Linnaeus, 1758) |
| Nucula sulcata (Bronn, 1831) |
| Nuculoma Cossman, 1907 |
| Nuculoma tenuis (Montagu, 1808) |
| Family Nuculanidae |
| Jupiteria Bellardi, 1875 |
| Jupiteria minuta (O F Müller, 1776) |
| Order ARCOIDA |
| Family Arcidae |
| Arca Linnaeus, 1758 |
| Arca tetragona (Poli, 1795) |
| Family Noetiidae |
| Striarca Conrad, 1862 |
| Striarca lactea (Linnaeus, 1758) |
| Family Glycymerididae |
| Glycymeris da Costa, 1778 |
| Glycymeris glycymeris (Linnaeus, 1758) |
| Order MYTILOIDA |
| Family Mytilidae |
| Mytilus Linnaeus, 1758 |
| Mytilus edulis (Linnaeus, 1758) |
| Mytilus galloprovincialis (Lamarck, 1819) |
| Modiolus Lamarck, 1799 |
| Modiolus adriaticus (Lamarck, 1819) |
| Modiolus barbatus (Linnaeus, 1758) |
| Modiolus modiolus (Linnaeus, 1758) |
| Modiolarca J E Gray in Dieffenbach, 1843 |
| Modiolarca tumida (Hanley, 1843) |
| Musculus Röding, 1798 |
| Musculus discors (Linnaeus, 1767) |
| Musculus niger (J E Gray, 1824) |
| Order PTERIOIDA |
| Family Pinnidae |
| Atrina J E Gray, 1842 |
| Atrina fragilis (Pennant, 1777) |
| Order LIMOIDA |
| Family Limidae |
| Limaria Link, 1807 |
| Limaria hians (Gmelin, 1791) |
| Limaria loscombi (G B Sowerby I, 1823) |
| Limatula S V Wood, 1839 |
| Limatula subauriculata (Montagu, 1808) |
| Order OSTREOIDA |
| Family Ostreidae |
| Ostrea Linnaeus, 1758 |
| Ostrea edulis (Linnaeus, 1758) |
| Family Pectinidae |
| Pecten O F Müller, 1776 |
| Pecten maximus (Linnaeus, 1758) |
| Aequipecten Fischer, 1886 |
| Aequipecten opercularis (Linnaeus, 1758) |
| Chlamys Röding, 1798 |
| Chlamys distorta (da Costa, 1778) |
| Chlamys varia (Linnaeus, 1758) |
| Chlamys varia var. nivea (Macgillivray, 1825) |
| Palliolum Monterosato, 1884 |
| Palliolum furtivum (Lovén, 1846) |
| Palliolum striatum (O F Müller, 1776) |
| Palliolum tigerinum (O F Müller, 1776) |
| Pseudamussium Morch, 1853 |
| Pseudamussium septemradiatum (O F Müller, 1776) |
| Family Propeamussiidae |
| Similipecten Winckworth, 1932 |
| Similipecten similis (Laskey, 1811) |
| Family Anomiidae |
| Anomia Linnaeus, 1758 |
| Anomia ephippium Linnaeus, 1758 |
| Pododesmus Philippi, 1837 |
| Pododesmus patelliformis (Linnaeus, 1761) |
| Order VENEROIDA |
| Family Lucinidae |
| Loripes Poli, 1791 |
| Loripes lucinalis (Lamarck, 1818) |
| Myrtea Turton, 1822 |
| Myrtea spinifera (Montagu, 1803) |
| Lucinoma Dall, 1901 |
| Lucinoma borealis (Linnaeus, 1767) |
| Family Thyasiridae |
| Thyasira Lamarck, 1818 |
| Thyasira flexuosa (Montagu, 1803) |
| Family Ungulinidae |
| Diplodonta Bronn, 1831 |
| Diplodonta rotundata (Montagu, 1803) |
| Family Galeommatidae |
| Galeomma Turton, 1825 |
| Galeomma turtoni (G B Sowerby I in Turton, 1825) |
| Family Astartidae |
| Astarte J Sowerby, 1816 |
| Astarte sulcata (da Costa, 1778) |
| Tridonta Schumacher, 1817 |
| Tridonta borealis (Schumacher, 1817) |
| Tridonta elliptica (Brown, 1827) |
| Family Cardiidae |
| Acanthocardia J E Gray, 1851 |
| Acanthocardia aculeata (Linnaeus, 1758) |
| Acanthocardia echinata (Linnaeus, 1758) |
| Acanthocardia tuberculata (Linnaeus, 1758) |
| Parvicardium Monterosato, 1884 |
| Parvicardium ovale (G B Sowerby II, 1840) |
| Parvicardium scabrum (Philippi, 1844) |
| Laevicardium Swainson, 1840 |
| Laevicardium crassum (Gmelin, 1791) |
| Cerastoderma Poli, 1795 |
| Cerastoderma edule (Linnaeus, 1758) |
| Cerastoderma glaucum (Poiret, 1789) |
| Family Mactridae |
| Mactra Linnaeus, 1767 |
| Mactra glauca (Born, 1778) |
| Spisula J E Gray, 1837 |
| Spisula elliptica (Brown, 1827) |
| Spisula solida (Linnaeus, 1758) |
| Spisula subtruncata (da Costa, 1778) |
| Lutraria Lamarck, 1799 |
| Lutraria angustior Philippi, 1844 |
| Family Pharidae |
| Ensis Schumacher, 1817 |
| Ensis arcuatus (Jeffreys, 1865) |
| Ensis ensis (Linnaeus, 1758) |
| Phaxas Leach, 1852 |
| Phaxas pellucidus (Pennant, 1777) |
| Family Tellinidae |
| Angulus Megerle von Muhlfeld, 1811 |
| Angulus squalidus (Pulteney, 1799) |
| Angulus tenuis (da Costa, 1778) |
| Arcopagia Brown, 1827 |
| Arcopagia crassa (Pennant, 1777) |
| Arcopella Thiele, 1934 |
| Arcopella balaustina (Linnaeus, 1758) |
| Fabulina J E Gray, 1851 |
| Fabulina fabula (Gmelin, 1791) |
| Moerella P Fischer, 1887 |
| Moerella donacina (Linnaeus, 1758) |
| Moerella pygmaea (Lovén, 1846) |
| Quadrans Bertin, 1878 |
| Quadrans serratus (Brocchi, 1814) |
| Macoma Leach, 1819 |
| Macoma balthica (Linnaeus, 1758) |
| Gastrana Schumacher, 1817 |
| Gastrana fragilis (Linnaeus, 1758) |
| Family Donacidae |
| Donax Linnaeus, 1758 |
| Donax variegatus (Gmelin, 1791) |
| Donax vittatus (da Costa, 1778) |
| Family Psammobiidae |
| Gari Schumacher, 1817 |
| Gari depressa (Pennant, 1777) |
| Gari tellinella (Lamarck, 1818) |
| Gari fervensis (Gmelin, 1791) |
| Solecurtus Blainville, 1824 |
| Solecurtus scopula (Turton, 1822) |
| Azorinus Recluz, 1869 |
| Azorinus chamasolen (da Costa, 1778) |
| Family Semelidae |
| Abra Lamarck, 1818 |
| Abra alba (W Wood, 1802) |
| Abra prismatica (Montagu, 1808) |
| Scrobicularia Schumacher, 1816 |
| Scrobicularia plana (da Costa, 1778) |
| Family Arcticidae |
| Arctica Schumacher, 1817 |
| Arctica islandica (Linnaeus, 1767) |
| Family Veneridae |
| Venus Linnaeus, 1758 |
| Venus verrucosa Linnaeus, 1758 |
| Circomphalus Morch, 1853 |
| Circomphalus casina (Linnaeus, 1758) |
| Gouldia C B Adams, 1847 |
| Gouldia minima (Montagu, 1803) |
| Chamelea Morch, 1853 |
| Chamelea striatula (Da Costa, 1778) |
| Clausinella J E Gray, 1851 |
| Clausinella fasciata (da Costa, 1778) |
| Timoclea Brown, 1827 |
| Timoclea ovata (Pennant, 1777) |
| Tapes Megerle von Muhlfeld, 1811 |
| Polititapes aureus (Gmelin, 1791) |
| Polititapes rhomboides (Pennant, 1777) |
| Ruditapes decussatus (Linnaeus, 1758) |
| Ruditapes philippinarum (Adams & Reeve, 1850) |
| Irus Schmidt, 1818 |
| Irus irus (Linnaeus, 1758) |
| Venerupis Lamarck, 1818 |
| Venerupis corrugata (Gmelin, 1791) |
| Dosinia Scopoli, 1777 |
| Dosinia lupinus (Linnaeus, 1758) |
| Dosinia exoleta (Linnaeus, 1758) |
| Family Petricolidae |
| Petricola Lamarck, 1801 |
| Petricolaria pholadiformis (Lamarck, 1818) |
| Mysia Lamarck, 1818 |
| Mysia undata (Pennant, 1777) |
| Order MYOIDA |
| Family Myidae |
| Mya Linnaeus, 1758 |
| Mya truncata (Linnaeus, 1758) |
| Mya arenaria (Linnaeus, 1758) |
| Family Corbulidae |
| Corbula Bruguiere, 1797 |
| Corbula gibba (Olivi, 1792) |
| Family Gastrochaenidae |
| Gastrochaena Spengler, 1783 |
| Gastrochaena dubia (Pennant, 1777) |
| Family Hiatellidae |
| Hiatella Bosc, 1801 |
| Hiatella arctica (Linnaeus, 1767) |
| Family Pholadidae |
| Pholas Linnaeus, 1758 |
| Pholas dactylus (Linnaeus, 1758) |
| Barnea Risso, 1826 |
| Barnea candida (Linnaeus, 1758) |
| Barnea parva (Pennant, 1777) |
| Zirfaea J E Gray, 1842 |
| Zirfaea crispata (Linnaeus, 1758) |
| Pholadidea Turton, 1819 |
| Pholadidea loscombiana (Turton, 1819) |
| Order PHOLADOMYOIDA |
| Family Thraciidae |
| Thracia J de C Sowerby, 1823 |
| Thracia convexa (W Wood, 1815) |
| Thracia phaseolina (Lamarck, 1818) |
| Thracia villosiuscula (Macgillivray, 1827) |
| Thracia distorta (Montagu, 1803) |
| Family Periplomatidae |
| Cochlodesma Couthouy, 1839 |
| Cochlodesma praetenue (Pulteney, 1799) |
| Class CEPHALOPODA |
| Order SEPIOIDEA |
| Family Sepiidae |
| Sepia Linnaeus, 1758 |
| Sepia officinalis (Linnaeus, 1758) |
| Family Sepiolidae |
| Rossia Owen, 1834 |
| Rossia macrosoma (delle Chiaje, 1830) |
| Order OCTOPODA |
| Family Octopodidae |
| Eledone Leach, 1817 |
| Eledone cirrhosa (Lamarck, 1798) |