Aldabrachelys
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Aldabrachelys[1] is genus of giant tortoises, including the Aldabra giant tortoise (Aldabrachelys gigantea) native to the Seychelles, as well as two extinct species, Aldabrachelys abrupta and Aldabrachelys grandidieri known from Madagascar. The genus name derives from Aldabra, a coral atoll in the Seychelles, plus chelys, from the Greek, χέλυς, for "tortoise" or "lyre", since Hermes was the first to invent the lyre from a hollowed out tortoise shell.
Naming
This name is problematic in that the type specimen actually represents Chelonoidis denticulata;[2] however, this was discussed and petitioned before the ICZN[3] and accepted: the name Aldabrachelys is therefore the correct name for this genus.
Taxonomy
Within Testudinidae, Aldabrachelys is most closely related to Astrochelys and Pyxis, which are also native to Madagascar, suggesting that they share a common origin on the island. Within the genus, Aldabrachelys abrupta is more closely related to A. gigantea than it is to A. grandidieri, but A. abrupta and A. gigantea are relatively genetically divergent, suggesting that they are not synonymous as had sometimes been previously proposed, and that they diverged from each other several million years ago. The proposed subspecies of A. gigantea show relatively little genetic differentiation from each other.[4]
References
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- ↑ Bour R (2006). "Identity of Testudo gigantea Schweigger, 1812 and rediscovery of the type specimen". Emys 13 (4): 12–23.
- ↑ 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)". Bulletin of Zoological Nomenclature 66 (1):Case:3463Script error: No such module "Unsubst".
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