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Cyrtodactylus nyinyikyawi GRISMER, WOOD, THURA, WIN & QUAH, 2019

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesShwe Settaw Bent-toed Gecko 
SynonymCyrtodactylus nyinyikyawi GRISMER, WOOD, THURA, WIN & QUAH 2019 
DistributionMyanmar (Magway Region: Shwe Settaw Wildlife Sanctuary)

Type locality: Shwe Settaw Wildlife Sanctuary, Min Bu Township, Magway Region, Myanmar (20.05972°N, 94.59611°E; 137 m in elevation).  
Reproduction 
TypesHolotype: CAS 226139, adult female, collected on 14 September 2002 at 1030 hrs by Thin Thin, Kyi Soe Lwin, and Hla Tun. 
DiagnosisDiagnosis. Cyrtodactylus nyinyikyawi sp. nov. differs from all other species in the peguensis group by having the unique combination of nine supralabials; eight infralabials; 35 paravertebral tubercles; 20 longitudinal rows of body tubercles; 35 ventral scales; 19 subdigital lamellae on the fourth toe; four rows of enlarged, post-precloacal scales; keeled, conical, body tubercles; top of head bearing dark blotches; five dark, body bands; dark body bands lacking paravertebral elements; and maximum SVL of 64.5 mm (Table 3 in Grismer et al. 2019).

Comparisons Cyrtodactylus nyinyikyawi sp. nov. is the sister species of a clade that includes the sister species C. peguensis and C. pyinaungensis and C. myinykyawthurai (Fig. 2). It differs from C. peguensis by a 9.3% uncorrected pairwise sequence divergence, from C. myintkyawthurai by an 11.3–12.3% sequence divergence, and from C. pyinaungensis by a sequence divergence of 10.0–10.3%. Outside this clade, C. nyinyikyawi sp. nov. differs from C. meersi by a sequence divergence of 10%, from the Panluang-Pyadalin Cave population if differs by 9.3– 9.7%, and from C. annandalei it differs by 10.3%. It differs from all species of the peguensis group by having a higher number of paravertebral tubercles (35 vs. 25–33, collectively) and differs from all other species except the Panluang-Pyadalin Cave population by the dark dorsal bands lacking distinct, paravertebral elements as opposed to having them (Figs. 4, 5). It differs further from C. annandalei in that the top of the head is blotched as opposed to being unicolor It differs further from the Panluang-Pyadalin Cave population in having 35 as opposed to 38–40 ventral scale rows. Other differences separating C. nyinyikyawi sp. nov. form other peguensis group species are listed in Tables 2 and 3 in Grismer et al. 2019. 
CommentOnly known from a single specimen. 
EtymologyThe specific epithet, nyinyikyawi is a patronym honoring Nyi Nyi Kyaw the Director General of the Forestry Department for his contributions to conservation efforts in Myanmar in general and to our work in particular. 
References
  • GRISMER, L. LEE; PERRY L. JR. WOOD, MYINT KYAW THURA, NAY MYO WIN, EVAN S. H. QUAH 2019. Two more new species of the Cyrtodactylus peguensis group (Squamata: Gekkonidae) from the fringes of the Ayeyarwady Basin, Myanmar. Zootaxa 4577 (2): 274–294 - get paper here
 
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