This sea slug superficially resembles a nudibranch, yet it does not belong to that suborder of gastropods.

Instead it is a member of the closely related clade Sacoglossa, the "sap-sucking" sea slugs.

It has broad parapodia each edged with an orange band and a black margin.

[3] Its main food source is algae and are found on submergent vegetation.

[4] Elysia ornata is a tropical species found in both the Pacific Ocean and the Caribbean Sea.