Question: Elysia gordanae is a species of sea slug a marine gastropod mollusc.This sea slug resembles a nudibranch but it is not closely related to that order of gastropods. It is instead a sacoglossan. It was first described by Thompson and Jaklin in 1988 from off the coast of Spain. It is also known from the Adriatic Sea and other parts of the Mediterranean Sea. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Animal