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Hemiphyllodactylus zwegabinensis GRISMER, WOOD, QUAH, THURA, OAKS & LIN, 2020

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Zwegabin Mountain Slender Gecko 
SynonymHemiphyllodactylus zwegabinensis GRISMER, WOOD, QUAH, THURA, OAKS & LIN 2020 
DistributionMyanmar (Kayin)

Type locality: top of Zwegabin Mountain, Kayin State, Myanmar (16.82407°N 97.66810°E WGS; 710 m in elevation  
TypesHolotype. LSUHC 14184, adult female, collected on 8 August 2019 at 1830 hrs by L. Lee Grismer, Evan S. H. Quah, Perry L. Wood Jr., Myint Kyaw Thura, Jamie R. Oaks, and Aung Lin. 
DiagnosisDiagnosis. Hemiphyllodactylus zwegabinensis sp. nov. can be separated from all other species of Hemiphyl- lodactylus by possessing the unique combination of having a maximum SVL of 36.9 mm; 12 chin scales; enlarged postmentals; five circumnasal scales; five intersupranasals (=postrostrals); nine supralabials; 10 infralabials; 16 longitudinally arranged dorsal scales at midbody contained within one eye diameter and seven ventral scales; varied digital formulae on hands and feet; four subdigital lamellae on the first finger and toe; no pore-bearing, femoropre- cloacal scales; no plate-like subcaudal scales; adult females not yellow; a dark postorbital stripe extending to at least base of neck; dorsolateral light-colored spots on trunk; no dark dorsolateral or ventrolateral stripe on trunk; dark paravertebral markings on trunk; light-colored postsacral marking bearing anteriorly projecting arms; and caecum and gonads unpigmented. These characters are scored across all Burmese species in Tables 3 and 6 and from all other species of Hemiphyllodactylus from southern China and western Thailand (clades 3 and 4 in Grismer et al. (2017:Table 3)).

Comparisons. The molecular analyses indicate that Hemiphyllodactylus zwegabinensis sp. nov. is a genetically distinct member of the south lineage and is the sister species to a clade composed of the sister species H. kyaikti- yoensis sp. nov., and H. pinlaungensis sp. nov. (Fig. 1) from which it bears an uncorrected pairwise sequence di- vergence of 13.7% and 14.1%, respectively (Table 10). Hemiphyllodactylus zwegabinensis sp. nov. differs from H. pinlaungensis sp. nov. and H. kyaiktiyoensis sp. nov. by having significantly different centroid position based on the factor loadings of the PC1–3 (p = 0.002 and 0.022, respectively). Hemiphyllodactylus zwegabinensis sp. nov. differs from H. kyaiktiyoensis sp. nov. by having 12 as opposed to 8–10 chin scales (CS), 10 as opposed to eight or nine infralabials, seven as opposed to eight or nine ventral scales (VS) (Fig. 3, Table 6), and lacking as opposed to having a nearly dorsum-wide, brown vertebral stripe (Fig. 7). Hemiphyllodactylus zwegabinensis sp. nov. differs from H. pinlaungensis sp. nov. by having significantly shorter adjusted SN (1.065 vs 1.363, p = 0.005; Fig. 3, Table 6). 
EtymologyThe specific epithet is a toponym referring to the type locality of Zwegabin Mountain. 
  • GRISMER, L. LEE; PERRY L. JR. WOOD, EVAN S. H. QUAH, MYINT KYAW THURA, JAMIE R. OAKS, AUNG LIN 2020. Four new Burmese species of Hemiphyllodactylus Bleeker (Squamata: Gekkonidae) from distantly related parapatric clades from the Shan Plateau and Salween Basin. Zootaxa 4758 (1): 45–82 - get paper here
  • NGUYEN, TRUONG QUANG; QUYEN HANH DO, HANH THI NGO, ANH VAN PHAM,<br />CUONG THE PHAM, MINH DUC LE, & THOMAS ZIEGLER 2020. Two new species of Hemiphyllodactylus (Squamata: Gekkonidae) from Hoa Binh Province, Vietnam. Zootaxa 4801 (3): 513–536 - get paper here
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