About Tambja capensis (Bergh, 1907)
Tambja capensis, commonly called the black nudibranch, is a large, deep-bodied nudibranch that can grow up to 80 millimeters in length. It is easy to identify by its blue-black body with a distinct bright turquoise marginal line. Some individuals have a brownish body with a purple marginal line instead. Both the gills and rhinophores of this species are black. This nudibranch is endemic to the South African coast. It occurs along the Atlantic coast from the Cape Peninsula to Port Elizabeth, and can be found from the shallow subtidal zone down to at least 30 meters depth. Ecologically, the black nudibranch feeds on tree-like bryozoans. It produces a bright yellow egg ribbon shaped like a rose-like spiral.
