Paracoryphella islandicaParacoryphella islandica is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Paracoryphellidae.History of the taxonomyParacoryphella islandica was originally described as Coryphella islandica by Nils Hjalmar Odhner in 1937. M. C. Miller assigned this species to a new genus Paracoryphella within a new family Paracoryphellidae. Gosliner & Kuzirian synonymized Paracoryphella with Flabellina, but Korshunova et al., 2017 reinstated Miller's genus and family.