Claim: Polybranchia orientalis is an animal species that belongs to the family Caliphyllidae in the genus of sacoglossan sea slugs Polybranchia.
Evidence: Kingdom: Animalia Animals (also called Metazoa) are multicellular eukaryotic organisms that form the biological kingdom Animalia. Family: Caliphyllidae Genus: Polybranchia Polybranchia is a genus of sacoglossan sea slugs, shell-less marine opisthobranch gastropod mollusks in the family Caliphyllidae.