About Emarcusia morroensis Roller, 1972
Emarcusia morroensis, commonly known as the Morro Bay Aeolid, is a species of sea slug. It is specifically classified as an aeolid nudibranch, and is a marine gastropod mollusc that belongs to the family Facelinidae. The holotype of this species was discovered at Morro Bay, located in San Luis Obispo County, California. This species occurs along the coast of California, ranging from Fort Baker in Marin County south to San Diego.