Platydoris inornata is a species of sea slug, a dorid nudibranch, shell-less marine opisthobranch gastropod mollusks in the family Discodorididae.[1]
The holotype of this species was collected at the Pinnacle, between Tab Island and Rasch Pass, Madang, New Guinea, -5.1618°N 145.8366°W. Further specimens from Madang, New Guinea and Sumilon Island and Maricaban Island, Philippines were included in the original description.