Facelina is a genus of sea slug, an aeolid nudibranch in the family Facelinidae. Species Species within the genus Facelina include: Facelina annulata Macnae, 1954 Facelina annulicornis (Chamisso & Eysenhardt, 1821) Facelina auriculata (Müller, 1776) - synonyms: Facelina coronata Facelina bilineata Hirano & Ito, 1998 Facelina bostoniensis (Couthouy, 1838) Facelina carmelae Moro & Ortea, 2015 Facelina coenda Er. Marcus, 1958 Facelina dubia (Pruvot-Fol, 1948) Facelina fragilis (Risbec, 1928) Facelina fusca Schmekel 1966 Facelina goslingii A. E. Verrill, 1901 Facelina hartleyi Burn, 1962 Facelina lineata Eliot, 1905 Facelina lugubris (Bergh, 1882) Facelina newcombi (Angas, 1864) Facelina olivacea Macnae, 1954 Facelina quadrilineata (Baba, 1930) Facelina rhodopos Yonow, 2000 Facelina rubrovittata (Costa A., 1866) Facelina rutila Pruvot-Fol, 1951 Facelina schwobi (Labbé, 1923) Facelina vicina (Bergh, 1882) Facelina zhejiangensis Lin & You, 1990 Species brought into synonymy Facelina agari Smallwood, 1910: synonym of Berghia agari (Smallwood, 1910) Facelina coronata (Forbes & Goodsir, 1839): synonym of Facelina auriculata (Müller, 1776) - type species of Facelina Facelina marioni Vayssière, 1888: synonym of Facelinopsis marioni (Vayssière, 1888) Facelina plumosa (Fleming, 1828): synonym of Facelina auriculata (Müller, 1776) Facelina quatrefagesi Vayssière, 1888: synonym of Caloria quatrefagesi (Vayssière, 1888) Facelina sargassicola Bergh, 1861: synonym of Spurilla sargassicola Bergh, 1871 Facelina stearnsi: synonym of Austraeolis stearnsi (Cockerell, 1901) Facelina variegata d'Oliveira, 1895: synonym of Berghia verrucicornis (A. Costa, 1867) References Further reading Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (United States). . XII, 195 pp. Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213 Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.'' Facelinidae