Geochelone nigra chathamensis (Van Denburgh, 1907)
Chelonoidis niger chathamensis, commonly known as the Chatham Island giant tortoise or the San Cristóbal giant tortoise, is a subspecies of Galápagos tortoise endemic to San Cristóbal Island in the Galápagos.[1]
^ abCaccone, A.; Cayot, L.J.; Gibbs, J.P.; Tapia, W. (2017). "Chelonoidis chathamensis". IUCN Red List of Threatened Species. 2017: e.T9019A82688009. doi:10.2305/IUCN.UK.2017-3.RLTS.T9019A82688009.en. Retrieved 19 November 2021.
^Van Denburgh, John (1907). "Preliminary descriptions of four new races of gigantic land tortoises from the Galapagos Islands". Proceedings of the California Academy of Sciences. 4th series. 1: 1–6.
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