Phyllidiopsis blanca is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.[1]
This species was described from San Nicolas Island, San Francisco, United States with additional specimens from Isla San Benitos, Baja California, Mexico. It is a rare species which has also been recorded from Palos Verdes and San Pedro.[2]
This nudibranch has a white dorsum with simple tubercles. It is a medium-sized Phyllidiid, growing to at least 25 mm in length.
This species feeds on the sponge Hymenamphiastra cyanocrypta.[3]