Bibliography
Laurent, R. F. 1997. Morphometric approach of the evolution of the tribe Ptychadenini. In: Van Wyk, J. H. (Ed.), Proceedings of the FitzSimons Commemorative Symposium (South African lizards: 50 years of progress) and Third H.A.A. Symposium on African herpetology: held at the Transvaal Museum, Pretoria, South Africa, 11-15 October 1993. Herpetological Association of Africa [Matieland], 183-188.
