As with the other Nembrotha genus nudibranchs, this slug's gill plume is large and elevated on a bulbous portion of the notum. The fine lines help distinguish it from other Nembrotha genus nudibranchs. It is rather large for a nudibranch, at nearly two inches. Its diet is said to consist of tunicates. Identification: Nembrotha lineolata back to nudibranch gallery