Plakobranchoidea form a superfamily of small and medium-sized nudibranches with no internal shell within the superorder Sacoglossa.
The current taxonomy according to Bouchet et al. (2017) and accepted by WoRMS is:
- Superfamily Plakobranchoidea Gray, 1840
- Family Costasiellidae K. B. Clark, 1984
- Genus Costasiella Pruvot-Fol, 1951
- Genus Panderevela Moro & Ortea, 2015
- Family Hermaeidae H. Adams & A. Adams, 1854
- Genus Aplysiopsis Deshayes, 1853
- Genus Caliphylla A. Costa, 1867
- Genus Cyerce Bergh, 1870
- Genus Hermaea Lovén, 1844
- Genus Mourgona Er. Marcus & Ev. Marcus, 1970
- Genus Polybranchia Pease, 1860
- Genus Sohgenia Hamatani, 1991
- Family Limapontiidae Gray, 1847
- Genus Alderella Odhner in Franc, 1968
- Genus Alderia Allman, 1845
- Genus Alderiopsis Baba, 1968
- Genus Calliopaea d’Orbigny, 1837
- Genus Ercolania Trinchese, 1872
- Genus Kerryclarkella K. Jensen, 2015
- Genus Limapontia Johnston, 1836
- Genus Olea Agersborg, 1923
- Genus Placida Trinchese, 1876
- Genus Sacoproteus Krug, Wong, M. R. Medina, Gosliner & Valdés, 2018
- Genus Stiliger Ehrenberg, 1828
- Family Plakobranchidae Gray, 1840
- Genus Bosellia Trinchese, 1891
- Genus Elysia Risso, 1818
- Genus Plakobranchus van Hasselt, 1824
- Genus Thuridilla Bergh, 1872
- Family Costasiellidae K. B. Clark, 1984
Species of Plakobranchoidea reported in the Mediterranean or around the Iberian Peninsula:
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