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Diplodactylus barraganae COUPER, OLIVER & PEPPER, 2014

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Higher TaxaDiplodactylidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesGulf Fat-tailed gecko 
SynonymDiplodactylus barraganae COUPER, OLIVER & PEPPER in OLIVER et al. 2014 
DistributionAustralia (border of Northern Territory and Queensland)

Type locality: Musselbrook Reserve, Border Waterhole (18° 36’ 30” S, 137° 59’ 18” E) NT/QLD border  
Reproduction 
TypesHolotype. NTM R21395.
Paratypes. NTM R21886, NTM R21892, Sherwin Ck / Roper River Junction (14° 40’ S, 134° 22’ E) NT; NTM R21088, Carpentaria Hwy, 100km E Stuart Hwy (16° 25’ 35” S, 134° 10’ 48” E) NT; NTM R20606, Cape Crawford Area (16° 42’ 07” S, 135° 31’ 04” E) NT; NTM R20605, Cape Crawford Area (16° 53’ 42” S, 135° 40’ 31” E) NT; QM J11035–37, Doomadgee Mission Stn (17° 55’ 48” S, 138° 49’ 12” E) QLD; QM J51987, Lawn Hill NP (18° 42’ 30” S, 138° 28’ 30” E) QLD; QM J75143, Lawn Hill (18° 42’ 30” S, 138° 28’ 48” E) QLD; QM J52723, Lawn Hill Stn, Century Project Site (18° 45’ S, 138° 35” E) QLD; AMS R162275, Riversleigh World Heri- tage Area (19° 00’ 11” S, 138° 40’ 03” E) QLD; QM J85474, Riversleigh (19° 00’ 47’ S, 138° 40’ 06” E) QLD; QM J49251, Gregory R, nr ‘Rackham’s Roost’, Riversleigh Stn (19° 02’ S, 138° 45’ E) QLD; AMS R17974 –, 75, Mount Isa (20° 44’ S, 139° 29’ E) QLD. 
CommentDiagnosis. A small member of the D. conspicillatus group (max SVL 49 mm) with a bold canthal stripe and greatly enlarged first supralabial (contacting ventral edge of nasal scale). Mid-dorsal scales on trunk small and only slightly larger than the dorsolaterals. Original tail spade-like and lacking an acute attenuated extension at tip. Scales on dorsal surface of tail ar- ranged in transverse rows (which include rows of both large and small scales). Pattern not strongly contrasting, usually some indication of a pale, jagged-edged vertebral zone.

Comparisons. Diplodactylus barraganae sp. nov. is readily distinguished from D. platyurus in possessing an enlarged first supralabial that contacts the ventral edge of the nasal scale (vs 1st supralabial small and not differentiated from the rest of the supralabial row). It is distinguished from D. conspicillatus, D. laevis, D. bilybara sp. nov. and D. custos sp. nov. in having small mid-dorsal scales that are only slightly larger than the dorsolaterals (vs mid-dorsals enlarged and plate-like, conspicuously larger than the dorsolaterals) and further distinguished from D. laevis, D. bilybara sp. nov. and D. custos sp. nov. by the shape of the original tail (tail blunt, spade-like without an acute attenuated extension at tip in D. barraganae sp. nov. vs tail with an acute attenuated extension at tip).

Distribution: see map in OLIVER et al. 2014 (Fig. 3). 
EtymologyNamed for María Elena Barragán (Fundacion Herpetologica Gustavo Orces. Quito, Ecuador) in recognition of her contributions to reptile conservation and public education. 
References
  • COUPER, PATRICK J.; PAUL M. OLIVER 2016. A new species of gecko from arid inland regions of eastern Australia (Diplodactylus; Diplodactylidae). Zootaxa 4093 (4): 525–538 - get paper here
  • Oliver PM, Couper PJ, Pepper M 2014. Independent Transitions between Monsoonal and Arid Biomes Revealed by Systematic Revison of a Complex of Australian Geckos (Diplodactylus; Diplodactylidae). PLoS ONE 9(12): e111895. doi:10.1371/journal.pone.0111895 - get paper here
 
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