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Gehyra koira HORNER, 2005

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
SubspeciesGehyra koira koira HORNER 2005
Gehyra koira ipsa HORNER 2005 
Common Names 
SynonymGehyra koira HORNER 2005
Gehyra koira koira — OLIVER et al. 2010
Gehyra koira koira — WILSON & SWAN 2013: 122
Gehyra koira — COGGER 2014: 359

Gehyra koira ipsa HORNER 2005
Gehyra koira ipsa — OLIVER et al. 2010
Gehyra koira ipsa — WILSON & SWAN 2013: 122
Gehyra ipsa — COGGER 2014: 359 
DistributionAustralia (North-Western Australia, Ord Victoria region)

Type locality: Nganlang Art Site, Keep River National
Park, Northern Territory, 15°48’26”S 129°06’23”E [koira].

Type locality: Piccaninny Massif, Purnululu (Bungle Bungle)
National Park, Western Australia, 17°27’S 128°24’E [ipsa]. 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 R.22406, adult female (koira)
Holotype: WAM R.101238, adult male [ipsa] 
CommentDiagnosis. A large, robust, dorsoventrally depressed, saxicoline gecko, G. koira sp. nov. is distinguished from Australian congeners by large adult size (mean snoutvent length = 76.8, range 65–96 mm) and the following combination of characters. Rostral scale oblong in shape, no prominent skin folds on hindlimbs, undivided smoothedged subdigital lamellae under the dilated section of the fourth toe and mean values of: 140 midbody scale rows; 43 (mode = 41) interorbital scales; 10 (mode = 10) supralabial scales; 12 (mode = 12) subdigital lamellae under the dilated section of the fourth toe; 15 (mode = 16) preanal pores in male; and a transversely aligned dorsal body pattern dominated by irregular, narrow pale bars [from HORNER 2005].

Comparison with similar species. Gehyra koira sp. nov. is distinguished from most Australian congeners by attaining a larger size (maximum SVL: 96 versus <80 mm). Gehyra baliola exceeds G. koira sp. nov. in size, but is distinguished by having a characteristic U-shaped rostral scale and posterior skin folds on each hindlimb. Gehyra koira sp. nov. is further distinguished from G. borroloola, G. minuta, G. montium, G. mutilata, G. nana, G. occidentalis, G. pilbara, G. punctata, G. purpurascens, G. variegata and G. xenopus by having entire rather than medially divided subdigital lamellae on the dilated section of the fourth toe. Of the remaining Australian Gehyra, G. pamela has heavily notched or medially divided subdigital lamellae on the dilated section of the fourth toe, fewer midbody scale rows (mean: 119.0 versus 140.2) and more preanal pores in males (mean: 23.2 versus 15.1). Gehyra dubia has deeply notched subdigital lamellae on the dilated section of the fourth toe, and fewer interorbital scales (<37 versus a mean of 42.6). Gehyra robusta has medially depressed subdigital lamellae on the dilated section of the fourth toe, fewer fourth toe lamellae (mean: 10.3 versus 12.2) and interorbital scales (mean: 26.2 versus 42.6). Gehyra catenata has fewer subdigital lamellae on the dilated section of the fourth toe (7–8 vs 10–14) and a dark zigzag-like dorsal pattern. Gehyra australis has fewer interorbital scales (mean: 33.6 versus 42.6), midbody scale rows (mean: 123.3 versus 140.2) and preanal pores in males (mean: 12.8 versus 15.1) [from HORNER 2005].

Diagnosis of subspecies. G. koira ipsa is distinguished from G. koira koira ssp. nov. by having more interorbital scales (mean = 45.8 versus 41.8, Z = 3.69***) and preanal pores (mean = 16.7 versus 14.7, Z = 2.27*), a shorter body (mean % of snout-vent length = 45.1 versus 47.6, Z = -2.13*), longer forelimb (mean % of snout-vent length = 31.8 versus 30.2, Z = 2.04*) and by being larger (mean snout-vent length = 85.2 versus 74.6, Z = 3.52***). 
EtymologyNamed after the Greek noun koira, meaning king, ruler or commander, in reference to Max King, in recognition of his landmark work on the cytology and taxonomy of Gehyra. The name is intended as a noun in apposition. The subspecifi c epithet is from the Latin word ipsa, meaning to make prominent one of two or more subjects, in reference to the morphological divergence of the Purnululu population from conspecifi c populations. The name is here intended as a noun in apposition. 
References
  • Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp.
  • Horner, P. 2005. Gehyra koira sp. nov. (Reptilia: Gekkonidae), a new species of lizard with two allopatric subspecies from the Ord-Victoria region of north-western Australia and a key to the Gehyra australis species complex. The Beagle 21: 165-174
  • OLIVER, PAUL; MARK SISTROM, BURHAN TJATURADI, KELIOPAS KREY & STEPHEN RICHARDS 2010. On the status and relationships of the gecko species Gehyra barea Kopstein 1926, with description of new specimens and a range extension. Zootaxa 2354: 45–55
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
  • Wilson,S. & Swan, G. 2013. A complete guide to reptiles of Australia, 4th ed. New Holland Publishers, 592 pp.
 
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