Nautical Phyllidia

Phyllidia marindica is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae. Description This nudibranch has a pattern of black on the dorsum interrupted by large yellow-capped tubercles surrounded by blue-grey rings. There are also many black rays or lines, on eithe... Read more in Seabook