janson jones
Scyllaea pelagica, the Sargassum nudibranch;
Volusia county, Florida (20 May 2014).
The Sargassum nudibranch is a small mollusk adapted to scratching out a living in floating mattes of Sargassum brown macroalgae. When sargassum washes up ashore, sometimes you can find a tiny nudibranch trying to work out its next move.