Literature
- Gray, J. E. 1852. Descriptions of a new genus and some new species of tortoises. Proc. Zool. Soc. London.
- Hoogmoed, M. S., and C. R. Crumly. 1984. Land tortoise types in the Rijksmuseum van Natuurlijke Historie with comments on nomenclature and systematics (Reptilia: Testudines: Testudinidae). Zool. Med. Leiden 58: 241-259.
- Obst, F. J. 1983. Beiträge zur Kenntnis der Landschildkröten-Gattung Manouria Gray, 1852. (Reptilia, Testudines, Testudinidae). Zool. Abh. Mus. Tierk. Dresden 38: 247-256.
- Winokur, R. M., and J. M. Legler. 1975. Chelonian mental glands. J. Morphol. 147: 275-291.