• Amphorina alberti Quatrefages, 1844 accepted as Amphorina farrani (Alder & Hancock, 1844)
• Amphorina alberti var. leopardina Vayssière, 1888 accepted as Cuthona leopardina (Vayssière, 1888)
• Amphorina amazighi (Tamsouri, Carmona, Moukrim & Cervera, 2015)
• Amphorina andra Korshunova, Malmberg, Prkić, Petani, Fletcher, Lundin & Martynov, 2020
• Amphorina farrani (Alder & Hancock, 1844)
• Amphorina linensis (García-Gómez, Cervera & F. J. Garcia, 1990)
• Amphorina odhneri (Derjugin & Gurjanova, 1926) accepted as Eubranchus odhneri (Derjugin & Gurjanova, 1926) accepted as Corruptobranchus odhneri (Derjugin & Gurjanova, 1926)
• Amphorina pallida (Alder & Hancock, 1842)
• Amphorina viriola Korshunova, Malmberg, Prkić, Petani, Fletcher, Lundin & Martynov, 2020
• Borealea nobilis (A. E. Verrill, 1880)
• Calma glaucoides (Alder & Hancock, 1854)
• Calma gobioophaga Calado & Urgorri, 2002
• Capellinia doriae Trinchese, 1874
• Capellinia fustifera (Lovén, 1846)
• Capellinia prietoi (Llera & Ortea, 1981)
• Capellinia vittata (Alder & Hancock, 1842)
• Catriona aurantia (Alder & Hancock, 1842)
• Catriona gymnota (Couthouy, 1838) accepted as Tenellia gymnota (Couthouy, 1838)
• Catriona maua Ev. Marcus & Er. Marcus, 1960 accepted as Tenellia maua (Er. Marcus & Ev. Marcus, 1960)
• Catriona perca Er. Marcus, 1958 accepted as Cuthona perca (Er. Marcus, 1958)
• Corruptobranchus odhneri (Derjugin & Gurjanova, 1926)
• Coryphella beaumonti Eliot, 1906 accepted as Cumanotus beaumonti (Eliot, 1906)
• Coryphella borealis Odhner, 1922 accepted as Gulenia borealis (Odhner, 1922)
• Coryphella browni Picton, 1980 accepted as Fjordia browni (Picton, 1980)
• Coryphella chriskaugei Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017 accepted as Fjordia chriskaugei Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017
• Coryphella dushia Ev. Marcus & Er. Marcus, 1963 accepted as Flabellina dushia (Ev. Marcus & Er. Marcus, 1963)
• Coryphella gracilis (Alder & Hancock, 1844) accepted as Microchlamylla gracilis (Alder & Hancock, 1844)
• Coryphella insolita (García-Gómez & Cervera, 1989) accepted as Fjordia insolita (García-Gómez & Cervera, 1989)
• Coryphella islandica Odhner, 1937 accepted as Paracoryphella islandica (Odhner, 1937)
• Coryphella lineata (Lovén, 1846) accepted as Fjordia lineata (Lovén, 1846)
• Coryphella monicae (Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017) accepted as Gulenia monicae Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017
• Coryphella nobilis A. E. Verrill, 1880 accepted as Borealea nobilis (A. E. Verrill, 1880)
• Coryphella orjani (Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017) accepted as Gulenia orjani Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017
• Coryphella parva M. Hadfield, 1963 accepted as Paracoryphella parva (M. Hadfield, 1963)
• Coryphella pedata (Montagu, 1816) accepted as Edmundsella pedata (Montagu, 1816)
• Coryphella polaris Volodchenko, 1946 accepted as Polaria polaris (Volodchenko, 1946)
• Coryphella robusta Trinchese, 1874 accepted as Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829)
• Coryphella rufibranchialis (G. Johnston, 1832) accepted as Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829)
• Coryphella rufibranchialis chocolata Balch, 1908 accepted as Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829)
• Coryphella rufibranchialis var. clavigera Odhner, 1929 accepted as Microchlamylla gracilis (Alder & Hancock, 1844)
• Coryphella rutila A. E. Verrill, 1879 accepted as Carronella pellucida (Alder & Hancock, 1843)
• Coryphella salmonacea (Couthouy, 1838) accepted as Ziminella salmonacea (Couthouy, 1838)
• Coryphella sarsi Friele, 1903 accepted as Borealea nobilis (A. E. Verrill, 1880)
• Coryphella verrucosa (M. Sars, 1829)
• Cumanotus beaumonti (Eliot, 1906)
• Cumanotus cuenoti Pruvot-Fol, 1948
• Cumanotus laticeps Odhner, 1907 accepted as Cumanotus beaumonti (Eliot, 1906)
• Cuthona abyssicola (Bergh, 1884) accepted as Cuthonella abyssicola Bergh, 1884
• Cuthona albopunctata (Schmekel, 1968) accepted as Trinchesia albopunctata Schmekel, 1968 accepted as Tenellia albopunctata (Schmekel, 1968)
• Cuthona amoena (Alder & Hancock, 1845) accepted as Rubramoena amoena (Alder & Hancock, 1845)
• Cuthona berghi (Friele, 1902) accepted as Cuthonella berghi Friele, 1903 accepted as Cuthonella abyssicola Bergh, 1884
• Cuthona caerulea (Montagu, 1804) accepted as Trinchesia caerulea (Montagu, 1804)
• Cuthona concinna (Alder & Hancock, 1843) accepted as Fiocuthona concinna (Alder & Hancock, 1843)
• Cuthona correai Ortea, Caballer & Moro, 2002
• Cuthona distans Odhner, 1922 accepted as Cuthonella concinna (Alder & Hancock, 1843) accepted as Fiocuthona concinna (Alder & Hancock, 1843)
• Cuthona ferruginea (Friele, 1903) accepted as Cuthonella ferruginea Friele, 1903 accepted as Cuthonella abyssicola Bergh, 1884
• Cuthona fidenciae (Ortea, Moro & Espinosa, 1999)
• Cuthona foliata (Forbes & Goodsir, 1839) accepted as Trinchesia foliata (Forbes & Goodsir, 1839) accepted as Tenellia foliata (Forbes & Goodsir, 1839)
• Cuthona fructuosa (Bergh, 1892)
• Cuthona genovae (O'Donoghue, 1926) accepted as Trinchesia genovae (O'Donoghue, 1926) accepted as Tenellia genovae (O'Donoghue, 1926)
• Cuthona granosa (Schmekel, 1966) accepted as Trinchesia granosa Schmekel, 1966 accepted as Tenellia granosa (Schmekel, 1966)
• Cuthona gymnota (Couthouy, 1838) accepted as Catriona gymnota (Couthouy, 1838) accepted as Tenellia gymnota (Couthouy, 1838)
• Cuthona hiemalis Roginskaya, 1987 accepted as Cuthonella hiemalis (Roginskaya, 1987)
• Cuthona ilonae (Schmekel, 1968) accepted as Trinchesia ilonae Schmekel, 1968 accepted as Tenellia ilonae (Schmekel, 1968)
• Cuthona leopardina (Vayssière, 1888)
• Cuthona miniostriata (Schmekel, 1968) accepted as Trinchesia miniostriata Schmekel, 1968 accepted as Tenellia miniostriata (Schmekel, 1968)
• Cuthona nana (Alder & Hancock, 1842)
• Cuthona norvegica (Odhner, 1929)
• Cuthona ocellata (Schmekel, 1966) accepted as Trinchesia ocellata Schmekel, 1966 accepted as Tenellia ocellata (Schmekel, 1966)
• Cuthona perca (Er. Marcus, 1958)
• Cuthona peregrina (Gmelin, 1791) accepted as Cratena peregrina (Gmelin, 1791)
• Cuthona pustulata (Alder & Hancock, 1854) accepted as Tenellia pustulata (Alder & Hancock, 1854)
• Cuthona rubescens Picton & G. H. Brown, 1978 accepted as Rubramoena rubescens (Picton & G. H. Brown, 1978)
• Cuthona suecica (Odhner, 1940) accepted as Xenocratena suecica Odhner, 1940
• Cuthona thompsoni F. J. García, López-González & García-Gómez, 1991
• Cuthona viridis (Forbes, 1840) accepted as Diaphoreolis viridis (Forbes, 1840)
• Cuthona willani Cervera, García-Gómez & López-González, 1992
• Cuthonella abyssicola Bergh, 1884
• Cuthonella berghi Friele, 1903 accepted as Cuthonella abyssicola Bergh, 1884
• Cuthonella concinna (Alder & Hancock, 1843) accepted as Fiocuthona concinna (Alder & Hancock, 1843)
• Cuthonella ferruginea Friele, 1903 accepted as Cuthonella abyssicola Bergh, 1884
• Cuthonella hiemalis (Roginskaya, 1987)
• Cuthonella norvegica Odhner, 1929 accepted as Cuthona norvegica (Odhner, 1929)
• Diaphoreolis stipata (Alder & Hancock, 1843)
• Diaphoreolis viridis (Forbes, 1840)
• Diaphoreolis viridis viridis (Forbes, 1840)
• Eubranchulus rupium (Møller, 1842)
• Eubranchus amazighi Tamsouri, Carmona, Moukrim & Cervera, 2015 accepted as Amphorina amazighi (Tamsouri, Carmona, Moukrim & Cervera, 2015)
• Eubranchus arci Ortea, 1981
• Eubranchus capellinii (Trinchese, 1879)
• Eubranchus cingulatus (Alder & Hancock, 1847) accepted as Eubranchus vittatus (Alder & Hancock, 1842) accepted as Capellinia vittata (Alder & Hancock, 1842)
• Eubranchus doriae (Trinchese, 1874) accepted as Capellinia doriae Trinchese, 1874
• Eubranchus exiguus (Alder & Hancock, 1848) accepted as Nudibranchus exiguus (Alder & Hancock, 1848)
• Eubranchus farrani (Alder & Hancock, 1844) accepted as Amphorina farrani (Alder & Hancock, 1844)
• Eubranchus fidenciae Ortea, Moro & Espinosa, 1999 accepted as Cuthona fidenciae (Ortea, Moro & Espinosa, 1999)
• Eubranchus leopoldoi Caballer, Ortea & Espinosa, 2001
• Eubranchus linensis García-Gómez, Cervera & F. J. García, 1990 accepted as Amphorina linensis (García-Gómez, Cervera & F. J. Garcia, 1990)
• Eubranchus odhneri (Derjugin & Gurjanova, 1926) accepted as Corruptobranchus odhneri (Derjugin & Gurjanova, 1926)
• Eubranchus pallidus (Alder & Hancock, 1842) accepted as Amphorina pallida (Alder & Hancock, 1842)
• Eubranchus prietoi Llera & Ortea, 1981 accepted as Capellinia prietoi (Llera & Ortea, 1981)