The predaceous aeolis, Himatina trophina, is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Coryphellidae.Picton, B. (2025). Himatina trophina (Bergh, 1890). In: MolluscaBase (2026). Accessed through: World Register of Marine Species on 2026-05-05. This species was commonly known as Flabellina fusca, a junior synonym.Emerald Sea Photography Retrieved July 04, 2012 It is currently the only species within the genus Himatina.
Distribution This species is frequent in British Columbia and extends around the North Pacific to Alaska and the Sea of Okhotsk, Russia.Behrens D.W. (2004) Pacific Coast nudibranchs, Supplement II. New species to the Pacific Coast and new information on the oldies. Proceedings of the California Academy of Sciences 55(2): 11–54.
Diet Himatina trophina mainly feeds on hydroids, it was also once believed to feed on tube worms but the species actually just preferred the hydroids which were growing on the outside of the tube worm. It has been reported feeding on other nudibranchs, crustacea and polychaete worms.Rudman, W.B., 2003 (April 16) Flabellina trophina (Bergh, 1894). [In] Sea Slug Forum. Australian Museum, Sydney.Behrens, D.W. (2005). Flabellina trophina. At: Miller, M. D. (2005). The Slug Site. Retrieved July 04, 2012
References