Ancula fuegiensisAncula fuegiensis is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.DistributionThis species was first described from Ushuaia, Argentina. It has also been reported from central Chile.DescriptionThis goniodorid nudibranch is translucent white in colour with black spots. It has only two extra-branchial processes.EcologyAncula fuegiensis probably feeds on Entoprocta which often grow on hydroids, bryozoa and other living substrata.