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Gehyra membranacruralis KING & HORNER, 1989

IUCN Red List - Gehyra membranacruralis - Least Concern, LC

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesPort Moresby four-clawed gecko, Port Moresby Dtella 
SynonymGehyra oceanica - DE ROOIJ 1915 (partim)
Gehyra vorax - DE ROOIJ 1915 (partim ?)
Gehyra membranacruralis KING & HORNER 1989
Gehyra membranacruralis — KLUGE 1993
Gehyra membranacruralis — RÖSLER 2000: 80
Gehyra membranacruralis — FLECKS et al. 2012 
DistributionPapua New Guinea

Type locality: Port Moresby, Papua New Guinea, 09°30'S 147°07'E. Map legend:
Type locality - Type locality.
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: NTM R13746 
CommentThe validity of this species is unclear.

Diagnosis. Gehyra membranacruralis is distinguished from other Papua New Guinea Gehyra by a combination of characters. Gehyra baliola, G. interstitalis, G. /eopoldi, G. mutilata, G. papuana and G. variegata have divided subdigitallamellae on the dilated section of the fourth toe, whereas those in G. membranacruralis are undivided. In addition, G. interstitalis, G. /eopoldi, G. papuana and G. variegata are smaller, being usually less than 80mm in adult snout-vent length. Gehyra baliola and G. muti/ata have a tail which is roughly triangular in section (rather than round to ovoid), due to the presence of en- larged lateral scales. G. baliola also possesses a characteristic 'U' shaped rostral scale.
Gehyra oceanica, like G. membranacruralis, has undivided subdigital lamellae, nevertheless it is smaller in adult snout-vent length (50- 101mm vs 103-123mm) and possesses only rudimentary webbing, directly behind the knees and between the toes. The Moluccan species G. marginata (holotype examined), is distinguished from G. membranacruralis by having anterior and posterior skin folds on the forelimbs and a tail that is roughly triangular in section. 
EtymologyThe name is drawn from the latin terms Membrana: "skin that covers special parts of the body" and Cruralis: "of the leg". Membranacruralis thus refers to the
cutaneous skin fold found on the rear legs of this species. 
References
  • Flecks M., Schmitz A., Böhme W., Henkel F. W. & Ineich I. 2012. A new species of Gehyra Gray, 1834 (Squamata, Gekkonidae) from the Loyalty Islands and Vanuatu, and phylogenetic relationships in the genus Gehyra in Melanesia. Zoosystema 34 (2): 203-221. http://dx.doi. org/10.5252/z2012n2a1 - get paper here
  • King,M. & Horner, P. 1989. Karyotype evolution in Gehyra (Gekkonidae: Reptilia). V. A new species from Papua New Guinea and the distribution and morphometrics of Gehyra oceanica (Lesson). The Beagle 6: 169-178
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Rösler, H., Glaw, F.& R. Günther 2005. Aktualisierte Liste der Geckos von Neuguinea (Sauria: Geckonidae: Gekkoninae) mit vorläufiger Charakterisierung von neun Formen aus den Gattungen Cyrtodactylus Gray, 1827, Gehyra Gray, 1834 und Nactus Kluge, 1983. Gekkota 5: 33-64 - get paper here
  • Skipwith, Phillip L. & Paul M. Oliver 2014. A new Gehyra (Gekkonidae: Reptilia) from New Guinea with unique caudal scalation. Zootaxa 3827 (1): 057–066 - get paper here
 
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