Abludomelita Karaman, 1981 (additional source)
Abludomelita gladiosa (Spence Bate & Westwood, 1862) (additional source)
Abludomelita obtusata (Montagu, 1813) (additional source)
Acteon tornatilis (Linnaeus, 1758) (additional source)
Anaitides groenlandica (Örsted, 1842) accepted as Phyllodoce groenlandica Örsted, 1842 (basis of record)
Angulus tenuis (da Costa, 1778) accepted as Macomangulus tenuis (da Costa, 1778) (basis of record)
Aplysia Linnaeus, 1767 (additional source)
Arcturella dilatata (G. O. Sars, 1883) accepted as Astacilla dilatata G. O. Sars, 1883 (additional source)
Arcturidae Dana, 1849 (additional source)
Byblis Boeck, 1871 (additional source)
Byblis gaimardi (Krøyer, 1846) accepted as Byblis gaimardii (Krøyer, 1846) (additional source)
Callianassa laticauda Otto, 1821 accepted as Gilvossius tyrrhenus (Petagna, 1792) (basis of record)
Callianassa laticauda Otto, 1821 accepted as Gilvossius tyrrhenus (Petagna, 1792) (source of synonymy)
Campylaspis costata (Sars, 1865) (additional source)
Campylaspis glabra Sars, 1878 (additional source)
Campylaspis rubicunda (Liljeborg, 1855) (additional source)
Cardium ovale G. B. Sowerby II, 1840 accepted as Parvicardium pinnulatum (Conrad, 1831) (basis of record)
Cerithiella metula (Lovén, 1846) (additional source)
Circomphalus casina (Linnaeus, 1758) accepted as Venus casina Linnaeus, 1758 (basis of record)
Cnidaria (additional source)
Cochlodesma (Bontaea) praetenue (Pulteney, 1799) accepted as Cochlodesma praetenue (Pulteney, 1799) (additional source)
Colus gracilis (da Costa, 1778) (additional source)
Crenella decussata (Montagu, 1808) (additional source)
Cylichna cylindracea (Pennant, 1777) (additional source)
Dendrodoa MacLeay, 1824 (additional source)
Diastylis laevis Norman, 1869 (additional source)
Diastyloides biplicatus (Sars G.O., 1865) (additional source)
Echiurus Guérin-Méneville, 1831 (additional source)
Euclymene droebachiensis (Sars, 1872) (additional source)
Facelina bostoniensis (Couthouy, 1838) (additional source)
Flustra Linnaeus, 1761 (additional source)
Gari fervensis (Gmelin, 1791) (additional source)
Glossobalanus marginatus Meek, 1922 (additional source)
Glyphohesione klatti Friedrich, 1950 (additional source)
Hypereteone Bergström, 1914 (additional source)
Hypereteone foliosa (Quatrefages, 1865) (basis of record)
Iphinoe serrata Norman, 1867 (additional source)
Limatula gwyni (Sykes, 1903) (additional source)
Moerella donacina (Linnaeus, 1758) (basis of record)
Moerella pygmaea (Lovén, 1846) accepted as Asbjornsenia pygmaea (Lovén, 1846) (basis of record)
Molgula Forbes, 1848 (additional source)
Mysia undata (Pennant, 1777) (additional source)
Nebalia Leach, 1814 (basis of record)
Neocrania anomala (O. F. Müller, 1776) accepted as Novocrania anomala (Müller, 1776) (additional source)
Neomenia carinata Tullberg, 1875 (additional source)
Nototropis A. Costa, 1853 (additional source)
Nuculana minuta (O. F. Müller, 1776) (additional source)
Nuculoma tenuis (Montagu, 1808) accepted as Ennucula tenuis (Montagu, 1808) (basis of record)
Onchidoris bilamellata (Linnaeus, 1767) (basis of record)
Palliolum furtivum (Lovén, 1846) accepted as Palliolum incomparabile (Risso, 1826) (additional source)
Palliolum striatum (O. F. Müller, 1776) (additional source)
Panomya arctica (Lamarck, 1818) accepted as Panomya norvegica (Spengler, 1793) (basis of record)
Paphia rhomboides (Pennant, 1777) accepted as Polititapes rhomboides (Pennant, 1777) (additional source)
Parapleustes Buchholz, 1874 (additional source)
Parvicardium exiguum (Gmelin, 1791) (additional source)
Pleurobranchus membranaceus (Montagu, 1816) (additional source)
Pododesmus patelliformis (Linnaeus, 1761) (additional source)
Polycarpa Heller, 1877 (additional source)
Processidae Ortmann, 1896 (additional source)
Proclea grafii [auctt.] accepted as Proclea graffii (Langerhans, 1884) (additional source)
Pseudione callianassae Kossmann, 1881 (additional source)
Pyripora d'Orbigny, 1849 (additional source)
Pyripora catenularia (Fleming, 1828) (additional source)
Saccoglossus horsti Brambell & Goodhart, 1941 (additional source)
Sarsinebalia Dahl, 1985 (basis of record)
Sarsinebalia typhlops (G. O. Sars, 1870) (basis of record)
Stereobalanus Spengel, 1901 (additional source)
Stereobalanus canadensis (Spengel, 1893) (additional source)
Stolonifera (basis of record)
Styela Fleming, 1822 (additional source)
Tapes (Tapes) Megerle von Mühlfeld, 1811 represented as Tapes Megerle von Mühlfeld, 1811 (basis of record)
Tellimya tenella (Lovén, 1846) (basis of record)
Thracia villosiuscula (MacGillivray, 1827) (additional source)
Tridonta elliptica (T. Brown, 1827) (basis of record)
Tridonta montagui (Dillwyn, 1817) (additional source)
Turbonilla (Pyrgiscus) R. A. Philippi, 1841 accepted as Pyrgiscus R. A. Philippi, 1841 (basis of record)
Turbonilla (Pyrgiscus) crenata (T. Brown, 1827) accepted as Pyrgiscus crenatus (T. Brown, 1827) (basis of record)
Vaunthompsonia Bate, 1858 (additional source)
Vaunthompsonia cristata Bate, 1858 (additional source)
Vesiculariidae Johnston, 1838 (additional source)