Photo by Pierre Niehaus
The four-colour nudibranch is one of those nudibranchs which you see now and then, and often in very different environments: I've seen it on pure white sand at A-Frame, on a kelp stipe, on a mud bottom at Thesen's Jetty in Knysna, on the wreck of the "Clan Stuart" and between algae at Long Beach. Often nudibranchs are associated with their special food source, for example, a specific type of gorgonian, and thus remain close to it, but this colourful species is a predator of other nudibranchs, although it also feeds on anemones. It is probably because of this that it ranges widely, as it has no need to stay in a particular area.
Nudibranchs of Southern Africa - a guide to the opisthobranch molluscs of southern Africa, T Gosliner, 1987.
Two Oceans, A guide to the marine life of Southern Africa, GM Branch, CL Griffiths, ML Branch and LE Beckley, 1994.