Goniobranchus splendidus

"Goniobranchus splendidus" is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae. The specific epithet "splendida" means splendid in reference to the colouring, because this nudibranch has large red spots on a white background, a yellow line at the mantle edge, and magenta rhinophores.