Phyllidiella striata

''Phyllidiella striata'' is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Phyllidiidae. This nudibranch has a black dorsum with longitudinal grey-pink ridges. These ridges are tuberculate and somewhat broken. They form a circle behind the anus and a patch between the rhinophores. The rhinophores are black.