Variable nudibranch in Port Elizabeth
Photo by Andrew Taylor

Variable nudibranch in Port Elizabeth
Photo by Andrew Taylor

Variable nudibranch in Cape Town
Photo by Guido Zsilavecz

Unknown Aphelodorid in Port Elizabeth
Photo by Andrew Taylor

Close-up
Photo by Andrew Taylor
Nudibranchs in Port Elizabeth
The first two images show the variable nudibranch Aphelodoris brunnea. It is rare in Cape Town, and occurs all the way to East London, but is known to be most prolific in Port Elizabeth. The pattern is highly variable, as can be seen when compared to the specimen photographed in Cape Town, although it is always a variation on a mottled brown on white theme.

The second species we have not been able to identify - it is one of the many white-with-dark/black-spots nudibranchs, which are usually hard to identify from photographs alone. We believe that this is a species of Aphelodoris as well (a member of the Asteronitidae family), due to the rhinophores, which have a sheath on the base.

For further details on the variable nudibranch, see "Nudibranchs of the Cape Peninsula and False Bay", available directly from SURG, and better dive stored in Cape Town.
References:
Nudibranchs of the Cape Peninsula and False Bay, G. Zsilavecz, 2007.
Nudibranchs of Southern Africa - a guide to the opisthobranch molluscs of southern Africa, T Gosliner, 1987.
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