Trapania darwiniTrapania darwini is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.DistributionThis species was first described from Española Island, Galapagos Islands.DescriptionThis goniodorid nudibranch is translucent white in colour, with an reticulate pattern of brown patches on the body. The tips of the rhinophores, gills, lateral papillae, oral tentacles and tail are yellow. Trapania goslineri has a similar pattern of colour except that the brown patches do not have white spots within them.EcologyTrapania darwini probably feeds on Entoprocta which often grow on sponges and other living substrata.