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Aldabrachelys

Aldabrachelys[1] is the recognised genus for the Seychelles and Madagascan radiations of giant tortoises, including the Aldabra giant tortoise (Aldabrachelys gigantea). This name is problematic in that the type specimen is actually a Chelonoidis denticulata;[2] however, this is being discussed and petitioned before the ICZN.[3]

Tortoise remains from over 1000 years ago, which have been found on the Comoros, are believed to have been from unknown species of the same genus.[4]

Species[edit]

  • A. abrupta (Grandidier 1868) – Madagascar, (extinct)
  • A. gigantea (Schweigger, 1812)[5] – Aldabra, granitic islands of Seychelles, four subspecies recognised
A. g. arnoldi Bour 1982 – granitic islands of Seychelles, found only in captivity
A. g. daudinii Duméril & Bibron 1835 – Daudin's giant tortoise, Seychelles, (extinct)
A. g. gigantia Schweigger, 1812[5]Aldabra atoll, Seychelles
A. g. hololissa Günther 1877 – granitic islands of Seychelles, only in captivity
  • A. grandidieri (Vaillant 1885) – southwestern Madagascar, (extinct)

References[edit]

  1. ^ a b Loveridge, A., and E. E. Williams. 1957. Revision of the African tortoises and turtles of the suborder Cryptodira. Bull. Mus. Comp. Zool. Harvard 115: 163-557.
  2. ^ Bour, R. 2006. Identity of Testudo gigantea Schweigger, 1812 and rediscovery of the type specimen. Emys, 13(4): 12–23.
  3. ^ Frazer, J., 2009. Testudo gigantea Schweigger, 1812 (currently Geochelone (Aldabrachelys) gigantea; Reptilia, Testudines): proposed conservation of usage of the specific name by maintenance of a designated neotype, and suppression of Testudo dussumieri Gray, 1831 (currently Dipsochelys dussumieri) BZN 66(1):Case:3463
  4. ^ J. Gerlach & K.L. Canning. 2000. Evolution and History of the Giant Tortoises of the Aldabra Island Group. Phelsumania
  5. ^ a b Schweigger, A. F. 1812. Monographiae Cheloniorum. Königsberg. Arch. Naturwiss. Math. 1: 271-368, 406-458.
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