Literature
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- Duméril, Auguste. 1856. Note sur les reptiles du Gabon. Rev. Mag. Zool., Paris (2)8: 369-377.
- Ewert, M. A. 1979. The embryo and its egg: development and natural history. In: M. Harless and H. Morlock (eds.), Turtles: Perspectives and Research, pp. 333-413. Wiley-Interscience, New York.
- Schmidt, K. P. 1919. Contributions to the herpetology of the Belgian Congo based on the collection of the American Congo Expedition, 1909-1915. Part I. Turtles, crocodiles, lizards, and chameleons. Bull. Amer. Mus. Natur. Hist. 39: 385-684.