About Goniobranchus splendidus (Angas, 1864)
Goniobranchus splendidus is a chromodorid nudibranch. It has an opaque white mantle covered in large, scattered red spots. In the northern section of this species' range, these red spots can blend together, sometimes forming a single large red patch on the middle of the back. The mantle edge is yellow. Its rhinophore clubs are red, with white edges along the lamellae. The gills have two fine red lines on the outer rachis, and white gill leaves. This species shares similar coloration with Goniobranchus daphne, Goniobranchus hunterae, and Goniobranchus tasmaniensis. This species was first described based on specimens from Port Jackson, New South Wales, Australia. It belongs to a group of similar red-spotted chromodorids native to south-eastern Australia that form a mimicry ring.
