The Facelinidae are a taxonomic family of colorful sea slugs. These are specifically aeolid nudibranchs. They are marine gastropod molluscs.
This family consists of the following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):
Facelininae Bergh, 1889 - synonyms: Caloriidae Odhner, 1968; Phidianidae Odhner, 1968; Pruvotfoliinae Tardy, 1970Babakininae Roller, 1973 - synonym: Babainidae Roller, 1972 (inv.)Crateninae Bergh, 1889 - synonym: Rizzoliinae Odhner, 1939 (inv.)Favorininae Bergh, 1889 - synonyms: Myrrhinidae Bergh, 1905; Phyllodesmiinae Thiele, 1931; Facalaninae Er. Marcus, 1958Herviellinae Burn, 1967Pteraeolidiinae Risbec, 1953Gosliner et al. (2007) have elevated subfamily Babakininae to family level Babakinidae.
Genera and species within the family Facelinidae include:
Subfamilies and genera brought into synonymy:
Acanthopsole Trinchese, 1874: synonym of Facelina Alder & Hancock, 1855Ennoia Bergh, 1896: synonym of Phyllodesmium Ehrenberg, 1831Subfamily Facalaninae: synonym of FavorininaeFacelinella Pruvot-Fol, 1951: synonym of Facelinopsis Pruvot-Fol, 1954Facelinella Baba, 1949: synonym of Facelina Alder & Hancock, 1855Matharena Bergh in Mörch, 1871: synonym of Favorinus M. E. Gray, 1850Morildilla [sic] : synonym of Moridilla Bergh, 1888Muessa Er. Marcus, 1965: synonym of Facelina Alder & Hancock, 1855Myrrhine Bergh, 1905: synonym of Phyllodesmium Ehrenberg, 1831Subfamily Pruvotfoliinae: synonym of FacelininaeRizzolia Trinchese, 1877: synonym of Cratena Bergh, 1864Rolandia Pruvot-Fol, 1951 invalid: junior homonym of Rolandia Lacaze-Duthiers, 1900: synonym of Pruvotfolia Tardy, 1969Subfamily Rizzoliinae: synonym of Crateninae
