López-González, P. J., J. M. Gili, and G. C. Williams. “New Records of Pennatulacea (Anthozoa: Octocorallia) from the African Atlantic Coast, With Description of a New Species and a Zoogeographic Analysis”. Scientia Marina, vol. 65, no. 1, Mar. 2001, pp. 59-74, doi:10.3989/scimar.2001.65n159.