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Ailuronyx trachygaster (DUMÉRIL, 1851)

IUCN Red List - Ailuronyx trachygaster - Vulnerable, VU
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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Yellow Gecko 
SynonymPlatydactylus trachygaster DUMÉRIL 1851: 35
Aeluronyx trachygaster — BOULENGER 1885: 194
Ailuronyx trachygaster — GLAW & VENCES 1994: 263
Ailuronyx trachygaster — RÖSLER 2000: 59 
DistributionSeychelles

Type locality: see comment  
Reproductionoviparous 
TypesHolotype: MNHN-RA 6679 
DiagnosisDiagnosis: “Very large, adult size (snout-vent length 150-172mm), hatchling 50.8mm SVL (Silhouette island, n=l), egg size 19.9mm (Silhouette island, n=2). Low conical dorsal scales with sparse ridges (18mm-1), dorsal ridge on main dorsal scales; secondary scales visible, flat conical, pitted ventrals, 27-32 scansors and waisted mental. Head and snout proportionately long, feet relatively large, with enlarged toe pads. Deep head. Recorded from Silhouette and Praslin.” (Gerlach 2002)


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CommentDistribution: The type locality (”Madagascar”) is probably erroneous, and very probably no Ailuronyx occur on Madagascar.

Described after a single specimen that may be a form of A. seychellensis from Praslin (BAUER 1990). 
References
  • Bauer, A. M. 1990. Phylogeny and biogeography of the geckos of southern Africa and the islands of the western Indian Ocean: a preliminary analysis. Pp. 274-284 in: Peters, G. and R. Hutterer (eds), Vertebrates in the Tropics. Bonn: Zoologisches Forschungsinstitut und Museum A. Koenig
  • Boulenger, G.A. 1885. Catalogue of the lizards in the British Museum (Nat. Hist.) I. Geckonidae, Eublepharidae, Uroplatidae, Pygopodidae, Agamidae. London: 450 pp. - get paper here
  • Brygoo, E. R. 1990. Les types de Gekkonidés (Reptiles, Sauriens) du Muséum national d’Histoire naturelle Catalogue critique. Bull. Mus. Nat. Hist. Nat. 12 (ser. 4) A (3-4), suppl.: 19-141
  • Duméril, A.M.C. & A. H. A. Duméril 1851. Catalogue méthodique de la collection des reptiles du Muséum d'Histoire Naturelle de Paris. Gide et Baudry/Roret, Paris, 224 pp.
  • Gerlach, Justin 2002. The Enigmatic Giant Bronze Gecko, Ailuronyx trachygaster, Part I: Identity. Gekko 3 (1): 29-38
  • Gerlach, Justin 2004. The Enigmatic Giant Bronze Gecko Ailuronyx trachygaster Part 2: Ecology. Gekko 4 (1): 8-14
  • Gerlach, Justin 2005. Ailuronyx trachygaster-the Best View Yet! Gekko 4 (2): 31
  • Gerlach,J. 1999. Notes on some Seychelles reptiles. British Herpetological Society Bulletin (67): 53-60
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Pawlowski, S. & Krämer, C. 2009. Zur Herpetologie des Vallée de Mai auf Praslin, Seychellen. Sauria 30 (4): 19-27 [2008] - get paper here
  • Rocha, Sara; Ana Perera, Nancy Bunbury, Christopher N. Kaiser-Bunbury and David J. Harris 2016. Speciation history and species-delimitation within the Seychelles Bronze geckos, Ailuronyx spp.: molecular and morphological evidence. Biological Journal of the Linnean Society, DOI: 10.1111/bij.12895 - get paper here
 
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