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Chelonoidis guntheri (BAUR, 1889)

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Higher TaxaTestudinidae, Testudinoidea, Testudines (turtles) 
Subspecies 
Common NamesSierra Negra Giant Tortoise 
SynonymTestudo güntheri BAUR 1889 (not Testudo güntheri GADOW 1914)
Testudo wallacei ROTHSCHILD 1902: 619
Geochelone elephantopus guntheri — PRITCHARD 1967
Chelonoidis elephantopus guentheri — OBST 1985
Geochelone nigra guntheri — IVERSON 1992
Chelonoidis nigra guntheri — DAVID 1994
Geochelone elephantopus guntheri — SWASH & STILL 2000
Geochelone guntheri — CISNEROS-HEREDIA 2006
Geochelone guntheri — POULAKAKIS et al. 2008
Chelonoidis guntheri — TTWG 2017: 128 
DistributionGalapagos (Sierra Negra area of SE Albemarle = Isabela);

Type locality: “Galapagos.” Restricted to “Vilamil, Albemarle” [= Isabela, Galápagos, Ecuador] by Van Denburgh (1914:259).

wallacei: Galápagos (San Cristóbal); Type locality: “Chatham Island” [San Cristóbal, Galápagos, Ecuador] by supposition. Restricted to “Jervis” [Rábida, Galápagos, Ecuador] by Van Denburgh (1914:259).  
Reproductionoviparous. 
TypesHolotype: OUM mounted specimen 
Diagnosis 
CommentSynonymy: not listed by Wermuth 19

Conservation: IUCN: Endangered C2a [TTWG 2017]; CITES: Appendix I, as Chelonoidis nigra.

Taxonomy: This is a member of the Chelonoidis niger species complex, variably considered subspecies of C. nigra or as valid species. Rhodin et al. (2010) and TTWG 2017 listed them separately but under the heading “C. niger species complex”. 
Etymology 
References
  • Baur, G. 1889. The Gigantic Land Tortoises of the Galapagos Islands. Amer. Natural., New York, 23: 1039-1057 - get paper here
  • Cisneros-Heredia, D.F. 2006. Turtles of the Tiputini Biodiversity Station with remarks on the diversity and distribution of the Testudines from Ecuador. Biota Neotrop. 6 (1): 1-16 - get paper here
  • David, Patrick 1994. Liste des reptiles actuels du monde. I. Chelonii. Dumerilia 1: 7-127
  • Iverson, J.B. 1992. A revised Checklist with Distribution Maps of the Turtles of the World. Richmond, Indiana, privately published, 363 pp.
  • Poulakakis, Nikos; Scott Glaberman, Michael Russello, Luciano B.Beheregaray, Claudio Ciofi, Jeffrey R. Powell and Adalgisa Caccone 2008. Historical DNA analysis reveals living descendants of an extinct species of Galápagos tortoise. PNAS 105 (40): 15464–15469
  • Pritchard, P.C.H. 1967. Scientific and common names of turtles of the world. Bulletin of the Ross Allen Reptile Institute 1967:1-10.
  • Rothschild, W. 1902. Description of a new species of gigantic land-tortoise from the Galapagos Islands. Novitates Zoologicae 9: 619 - get paper here
  • Swash, A. & Still, R. 2000. Birds, Mammals and Reptiles of the Galapagos Islands. Pica Press, 168 pp.
  • TTWG; Anders G.J. Rhodin, John B. iverson, Roger Bour, Uwe Fritz, Arthur GeoRges, H. BRadley Shaffer, and Peter Paul van Dijk 2017. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (8th Ed.). In: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Pritchard, P.C.H., and Mittermeier, R.A. (Ed Chelonian Research Monographs 7:1–292. doi: 10.3854/crm.7.checklist.atlas.v8.2017 - get paper here
 
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