Divesite "La Foradada" (depth 12m), Village of Portbou, at the Spanish French border. 15mm long. PHOTO: Lluís Aguilar.
It is an small aeolid (up to 15mm long). It has an iridiscent line across the dorsum. Oral tentacles and rhinophores are also pink with a lighter shade of color on the tips. Curved cerata, a quite characteristic trait, with the front part colored white. It is typically found in shallow waters, dark places and overhangs.
• Vayssiere, A. (1874). Recherches zoologiques et anatomiques sur les mollusques Opisthobranches du Golfe de Marseille. pt. 2, Nudibranches (Cirrobranches) et Ascoglosses. Ann. Mus. Hist. Nat. Marseille, 3(4): 1-160, pls. 1-7
Pontes, M. , 2000 (February 7) Facelinopsis marioni (Vayssiere, 1888). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/facemari