Eubranchus is a genus of aeolid nudibranch in the family Eubranchidae.
The name Eubranchus has been placed on the Official List by ICZN Opinion 774.ICZN. (1966) Opinion 774. Eubranchus Forbes, 1838 added to the Official List with suppression under the Plenary Powers of several nomina dubia. Bulletin of Zoological Nomenclature. 23(1): 87-90
Species Korshunova et al. (2025) restricted Eubranchus only to its type speciesKorshunova T.; Fletcher K.; Martynov A. (2025). The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case Zoological Journal of the Linnean Society, Volume 204, Issue 4, August 2025, zlaf057, : Eubranchus tricolor Forbes, 1838
Species within the genus Eubranchus that were not provided an alternate designation are as followsCaballer, M.; Bouchet, P.; Gofas, S. (2026). Eubranchus. Accessed through: World Register of Marine Species on 2026-04-17.:
Eubranchus agrius Er. Marcus, 1959 Eubranchus arci Ortea, 1981 Eubranchus capellinii Trinchese, 1879 Eubranchus conicla Er. Marcus, 1958 Eubranchus convenientis Ortea & Caballer, 2002 Eubranchus cucullus Behrens, 1985 Eubranchus echizenicus Baba, 1975 Eubranchus eibesfeldti Ortea, Caballer & Bacallado, 2003 Eubranchus falklandicus Eliot, 1907 Eubranchus flexus Grishina, Antokhina & Ekimova, 2023 Eubranchus fuegiensis Odhner, 1926 Eubranchus inabai Baba, 1964 Eubranchus leopoldoi Caballer, Ortea & Espinosa, 2001 Eubranchus mannarensis K. P. Rao, 1968 Eubranchus mimeticus Baba, 1975 Eubranchus montraveli Risbec, 1937 Eubranchus occidentalis MacFarland, 1966 Eubranchus ocellatus Alder & Hancock, 1864 Eubranchus productus Farran, 1905 Eubranchus rubeolus Burn, 1964 Eubranchus rubrocerata Edmunds, 2015 Eubranchus rustyus Er. Marcus, 1961 Eubranchus sp. 4 - fireworks nudibranch Eubranchus sp. 5 - candelabra nudibranchZsilavecz, G. 2007. Nudibranchs of the Cape Peninsula and False Bay. Eubranchus tanzanensis Edmunds, 1969 Eubranchus telesforoi Ortea, Caballer & Bacallado, 2002 Eubranchus toledanoi Ortea & Caballer, 2002 Eubranchus vascoi Ortea, Caballer & Moro, 2002 Eubranchus yolandae Hermosillo & Valdes, 2007
Species brought into synonymy Eubranchus adarensis Odhner, 1934: synonym of Galvinella adarensis Eubranchus alexeii Martynov, 1998: synonym of Aenigmastyletus alexeii Eubranchus amazighi Tamsouri, Carmona, Moukrim & Cervera, 2015: synonym of Amphorina amazighi Eubranchus cingulatus Alder & A. Hancock, 1847: synonym of Capellinia vittata Alder and Hancock, 1842 Eubranchus coniclus Er. Marcus, 1958: synonym of Eubranchus conicla Eubranchus doriae Trinchese, 1874: synonym of Capellinia doriae Eubranchus exiguus Alder and Hancock, 1848: synonym of Nudibranchus exiguus Eubranchus farrani Alder & Hancock, 1844: synonym of Amphorina farrani Eubranchus fidenciae Ortea, Moro & Espinosa, 1999: synonym of Trinchesia fidenciae Eubranchus glacialis Thiele, 1912: synonym of Galvinella glacialis Eubranchus horii Baba, 1960: synonym of Nihonbranchus horii Eubranchus linensis García-Gómez, Cervera & F. J. García, 1990: synonym of Amphorina linensis Eubranchus malakhovi Ekimova, Mikhlina, Vorobyeva, Antokhina, Tambovtseva & Shepetov, 2021: synonym of Corruptobranchus malakhovi Eubranchus mandapamensis Rao, 1968: synonym of Annulorhina mandapamensis Eubranchus misakiensis Baba, 1960: synonym of Leostyletus misakiensis Eubranchus novik Schepetov, Antokhina, Malaquias, Valdés & Ekimova, 2024: synonym of Eubranchulus novik Eubranchus odhneri Derjugin & Gurjanova, 1926: synonym of Corruptobranchus odhneri Eubranchus olivaceus O'Donoghue, 1922: synonym of Eubranchulus olivaceus Eubranchus pallidus Alder & Hancock, 1842: synonym of Amphorina pallida Alder & Hancock, 1842 Eubranchus prietoi Llera & Ortea, 1981: synonym of Capellinia prietoi Eubranchus putnami Fernández-Simón & Moles, 2023: synonym of Longibranchus putnami Eubranchus rubropunctatus Edmunds, 1969: synonym of Produnga rubropunctata Edmunds, 1969 Eubranchus rupium Møller, 1842: synonym of Eubranchulus rupium Eubranchus sanjuanensis Roller, 1972: synonym of Corruptobranchus sanjuanensis Eubranchus scintillans Grishina, Schepetov & Ekimova, 2022 : synonym of Nudibranchus scintillans Eubranchus steinbecki Behrens, 1987: synonym of Capellinia steinbecki Eubranchus virginalis Baba, 1949: synonym of Eubranchopsis virginalis Eubranchus viriola Korshunova, Malmberg, Prkić, Petani, Fletcher, Lundin & Martynov, 2020 : synonym of Amphorina viriola Eubranchus vittatus Alder and Hancock, 1842: synonym of Capellinia vittata Alder and Hancock, 1842
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