This species is endemic to the South African coast, being found from the Atlantic coast of the Cape Peninsula to Port Elizabeth from the shallow subtidal to at least 30 m.[3]
Description
The black nudibranch is a large (up to 80 mm) deep-bodied nudibranch. It is easily recognised because of its blue-black colour and bright turquoise marginal line. Some specimens are brownish with a purple marginal line. Its gills and rhinophores are black.[4]
Brown morph of the black nudibranch
Egg ribbon of the black nudibranch
Ecology
The black nudibranch feeds on tree-like bryozoans. Its egg ribbon is a bright yellow rose-like spiral.
References
^ abBieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2022). "Tambja capensis (Bergh, 1907)". MolluscaBase. World Register of Marine Species. Retrieved 19 February 2022.
^Zsilavecz, G. 2007. Nudibranchs of the Cape Peninsula and False Bay. ISBN0-620-38054-3
Pola, Marta; Cervera, J. Lucas; Gosliner, Terrence M. (2006). "Taxonomic revision and phylogenetic analysis of the genus Tambja Burn, 1962 (Mollusca, Nudibranchia, Polyceridae)". Zoologica Scripta. 35 (5): 491–530. doi:10.1111/j.1463-6409.2006.00241.x.