Doris odhneri

Doris odhneri is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Dorididae. It is known by many common names, such as: giant white nudibranch, giant white dorid, and white-knight nudibranch. It is also often referred to as Odhner's dorid to honor Nils Hjalmar Odhner, the scientist it is named after.