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Cyrtodactylus yangbayensis NGO VAN TRI & ONN, 2010

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Yangbay Bent-toed Gecko
Vietnamese: Than lan chan ngon yang bay. 
SynonymCyrtodactylus yangbayensis TRI & ONN 2010 
DistributionS Vietnam (Khanh Hoa)

Type locality: rocky outcrops around Yang Bay waterfall, Dien Khanh district, Khanh Hoa province, Southern Vietnam (approximately 12°11’N, 108°54’E) at 500–600 m elevation.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: UNS 0476, adult male collected by Ngo Van Tri on 3 June 2009.
Paratypes. The paratypes UNS 0475 and UNS 0477 have the same collection data as the holotype. UNS 0407–0412 were collected by Ngo Van Tri between 19:00 – 22:00 on 20 August 2008 in Hon Ba Nature Reserve (approximately 12o06’N, 108o59’E), Dien Khanh district, Khanh Hoa province, Southern Vietnam at 500–550m elevation. 
DiagnosisDiagnosis. Cyrtodactylus yangbayensis differs from all other congeners by the following combination of characters: mean SVL of 83.5 mm (± 4.7 mm); original tail long (TL/SVL: 1.28); dark brown blotches on head; nuchal loop broken into two dark fragments or V–shaped; dorsal pattern consisting of five to seven irregular rows of narrow, dark brown bands between limb insertions; 6–8 precloacal pores in males; 5–16 enlarged scales beneath thighs; 18–23 interorbital scales on the frontal bone; 26–32 scales in a straight line between eye and nostril; 39–46 rows of ventral scales between ventrolateral folds; 20–23 irregular, longitudinal rows of weakly–keeled, conical tubercles at midbody between the lateral folds; 28–34 paravertebral tubercles between limb insertions; 18–20 subdigital lamellae on first toe; 15–17 subdigital lamellae on fourth toe; 9–10 enlarged scales on heel; 9–11 irregular bands on original tail; median row of enlarged subcaudal scales. 
CommentAbundance: only known from the type locality (Meiri et al. 2017). 
EtymologyThe specific epithet is commemorates the type locality of the new species, the evergreen forest of Yang Bay Waterfall. Suggested common name: Yang Bay Bent–toed Gecko; Vietnamese name: Thằn lằn chân ngón Yang Bay. 
  • DAVID, PATRICK; TRUONG QUANG NGUYEN, NICOLE SCHNEIDER & THOMAS ZIEGLER 2011. A new species of the genus Cyrtodactylus Gray, 1827 from central Laos (Squamata: Gekkonidae). Zootaxa 2833: 29–40 - get paper here
  • LUU, VINH QUANG; THOMAS CALAME, Truong QUang Nguyen, MICHAEL BONKOWSKI & THOMAS ZIEGLER 2015. A new species of Cyrtodactylus (Squamata: Gekkonidae) from the limestone forest of Khammouane Province, central Laos. Zootaxa 4058 (3): 388–402 - get paper here
  • LUU, VINH QUANG; TRUONG QUANG NGUYEN, HUY QUANG DO, THOMAS ZIEGLER, 2011. A new Cyrtodactylus (Squamata: Gekkonidae) from Huong Son limestone forest, Hanoi, northern Vietnam. Zootaxa 3129: 39–50 - get paper here
  • LUU, VINH QUANG; Truong QUang Nguyen, MINH DUC LE, MICHAEL BONKOWSKI, THOMAS ZIEGLER 2016. A new species of karst-dwelling bent-toed gecko (Squamata: Gekkonidae) from Khammouane Province, central Laos. Zootaxa 4079 (1): 087–102 - get paper here
  • LUU, VINH QUANG;THOMAS CALAME, MICHAEL BONKOWSKI, TRUONG QUANG NGUYEN & THOMAS ZIEGLER 2014. A new species of Cyrtodactylus (Squamata: Gekkonidae) from Khammouane Province, Laos. Zootaxa 3760 (1): 054–066 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • NAZAROV, ROMAN; NIKOLAY A. POYARKOV, NIKOLAI L. ORLOV, TRUNG MY PHUNG, TAO THIEN NGUYEN, DUC MINH HOANG & THOMAS ZIEGLER 2012. Two new cryptic species of the Cyrtodactylus irregularis complex (Squamata: Gekkonidae) from southern Vietnam. Zootaxa 3302: 1–24 - get paper here
  • NGO, VAN TRI 2013. Cyrtodactylus dati, a new forest dwelling Bent-toed Gecko (Squamata: Gekkonidae) from southern Vietnam. Zootaxa 3616 (2): 151–164 - get paper here
  • NGO, VAN TRI & L. LEE GRISMER 2012. A new endemic species of Cyrtodactylus Gray (Squamata: Gekkonidae) from Tho Chu Island, southwestern Vietnam. Zootaxa 3228: 48–60 - get paper here
  • PHUNG, TRUNG MY; MONA VAN SCHINGEN,, THOMAS ZIEGLER, & TRUONG QUANG NGUYEN 2014. A third new Cyrtodactylus (Squamata: Gekkonidae) from Ba Den Mountain, Tay Ninh Province, southern Vietnam. Zootaxa 3764 (3): 347–363 - get paper here
  • Tri, Ngo Van & Onn, Chan Kinn 2010. A new species of Cyrtodactylus Gray, 1826 (Squamata: Gekkonidae) from Khanh Hoa province, Southern Vietnam. Zootaxa 2504: 47–60 - get paper here
  • Ziegler, T.; TRUNG MY PHUNG, MINH DUC LE, Truong QUang Nguyen 2013. A new Cyrtodactylus (Squamata: Gekkonidae) from Phu Yen Province, southern Vietnam. Zootaxa 3686 (4): 432–446 - get paper here
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