G. C.  Williams, ?The Alcyonacea of Southern Africa: Gorgonian octocorals (Coelenterata, Anthozoa)?, Annals of the South African Museum, vol. 101, pp. 181-296, 1992.

G. C.  Williams, ?Revision Of The Gorgonian Genus Simpsonella (Octocorallia, Chrysogorgiidae) From The Western Margin Of The Indo-Pacific, With The Description Of A New Species From South-Eastern Africa?, Zoological Journal Of The Linnean Society, vol. 105, pp. 377?405, 1992.