Trapania melaina is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.Bouchet, P. (2015). Trapania melaina. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-10-20
Distribution This species was first described from Sodwana Bay, South Africa.Rudman, W.B., 2008 (March 10) Trapania melaina Gosliner & Fahey, 2008. [In] Sea Slug Forum. Australian Museum, Sydney.
Description This goniodorid nudibranch is black in colour with a fine speckling of cream spots. The oral tentacles, lateral papillae, tail and rhinophores are tipped with orange and the gills are translucent with small yellow and black spots.
Ecology Trapania melaina probably feeds on Entoprocta which often grow on sponges and other living substrata.
References