Berghia marcusiBerghia marcusi is a species of sea slug, an aeolid nudibranch. It is a shell-less marine gastropod mollusc in the family Aeolidiidae.DistributionThis species is present in western Atlantic Ocean, from Florida to Jamaica and south to Brazil.DescriptionBerghia marcusi has a maximum reported size of 16.6 mm. It is a translucent white animal with a pattern of orange patches on the head and orange lines at the bases of the cerata.