. . "Elysia serca"@en . . . . . "Elysia serca, the seagrass elysia or Caribbean seagrass elysia, is a species of sea slug, a marine gastropod mollusc in the family Plakobranchidae. Although this sea slug resembles a nudibranch, it is not a nudibranch; it belongs to the clade, Sacoglossa, the \"sap-sucking\" sea slugs. It was first described by Marcus in 1955 from specimens found in Brazil."@en .