basis of recordHansson, H.G. (2001). Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,. 50: pp. 336-351. (look up in IMIS) [details]
additional sourceClark, A. M.; Courtman-Stock, J. (1976). The echinoderms of southern Africa. Publ. No. 766. British Museum (Nat. Hist), London. 277 pp.[details]