{{Short description|Family of gastropods}} {{Automatic taxobox | image = {{multiple image|perrow = 2/2|total_width=300 | border = infobox | image1 = Eubranchus mandapamensis (27154536364).jpg | image2 = Eubranchus tricolor.jpg | image4 = Babosa de mar (Eubranchus putnami), Anilao, Filipinas, 2023-08-23, DD 97.jpg | image3 = B155518-1.jpg }} | image_caption = From left to right in each row, from top to bottom: ''Annulorhina mandapamensis'', ''Eubranchus tricolor'', ''Capellinia vittata'', ''Longibranchus putnami'' | taxon = Eubranchidae | authority = Odhner, 1934<ref>Odhner, N. H. 1934. The Nudibranchiata. British Antarctic (“Terra Nova”) Expedition, 1910. British Museum (Natural History) Natural History Report, Zoology 7(5):229-310, pls. 1-3.</ref> | subdivision_ranks = Genera | subdivision = See genera }}

'''Eubranchidae''' is a family of nudibranchs, shell-less marine gastropod molluscs or sea slugs, within the superfamily Fionoidea.<ref name=WoRMS>{{Cite WoRMS|title=Eubranchidae Odhner, 1934|id=193|access-date=2026-03-14|db=MolluscaBase}}</ref> They are the only known fionoid family with a triserial radula, this is, its central teeth are flanked by one longitudinal row of lateral teeth on each side.<ref name=Korshunova_et_al2025/>

==Taxonomic history== In 2016, a molecular phylogenetics study by Cella and colleagues placed various fionoid taxa in the family Fionidae.<ref name=Cella/> In 2017, Korshunova and colleagues resintated several of these lumped families due to their considerable morphological and molecular pattern differences from each other. Differences, such as the tricerial radula unique to Eubranchidae among fionoids, the authors argue should grant the usage of more narrowly-defined families.<ref name=Ontogeny/><ref name=Korshunova_et_al2025/>

==Genera== Genera within the family Eubranchidae include:<ref name=WoRMS/><ref name=Korshunova_et_al2025/> {{Linked genus list | Aenigmastyletus | Martynov, 1998 | Amphorina | Quatrefages, 1844 | Annulorhina | K. P. Rao, 1968 | Capellinia | Trinchese, 1873 | Corruptobranchus | Martynov & Korshunova, 2025 | Dunga (gastropod) {{!}} Dunga | Eliot, 1902 | Eubranchopsis | Baba, 1949 | Eubranchulus | Martynov & Korshunova, 2025 | Eubranchus | Forbes, 1838 | Galvinella | Eliot, 1907 | Karavellia | Martynov & Korshunova, 2025 | Leostyletus | Martynov, 1998 | Longibranchus | Martynov & Korshunova, 2025 | Nihonbranchus | Martynov & Korshunova, 2025 | Nudibranchus | Martynov, 1998 | Produnga | Martynov, 1998 }}

==References== <references>

<ref name=Ontogeny>{{Cite journal |last=Korshunova |first=Tatiana |last2=Martynov |first2=Alexander |last3=Picton |first3=Bernard |date=2017-09-26 |title=Ontogeny as an important part of integrative taxonomy in tergipedid aeolidaceans (Gastropoda: Nudibranchia) with a description of a new genus and species from the Barents Sea |url=https://www.mapress.com/zt/article/view/zootaxa.4324.1.1 |journal=Zootaxa |language=en |volume=4324 |issue=1 |pages=1–22 |doi=10.11646/zootaxa.4324.1.1 |issn=1175-5334}}</ref>

<ref name=Korshunova_et_al2025>{{Cite journal |last=Korshunova |first=Tatiana |last2=Fletcher |first2=Karin |last3=Martynov |first3=Alexander |date=2025-08-01 |title=The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case |url=https://academic.oup.com/zoolinnean/article/doi/10.1093/zoolinnean/zlaf057/8237533 |journal=Zoological Journal of the Linnean Society |language=en |volume=204 |issue=4 |doi=10.1093/zoolinnean/zlaf057 |issn=0024-4082|url-access=subscription }}</ref>

<ref name=Cella>Cella, K; Carmona Barnosi, L.; Ekimova, I; Chichvarkhin, A; Schepetov, D; Gosliner, T. M. (2016). [https://dx.doi.org/10.1371/journal.pone.0167800 ''A radical solution: The phylogeny of the nudibranch family Fionidae.''] PLoS ONE. 11(12): e0167800.</ref>

</references>

{{Taxonbar|from=Q29749}}

Category:Eubranchidae Category:Gastropod families Category:Taxa named by Nils Hjalmar Odhner