Hemiphyllodactylus kyaiktiyoensis GRISMER, WOOD, QUAH, THURA, OAKS & LIN, 2020
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|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Common Names||E: Kyaiktiyo Mountain Slender Gecko|
|Synonym||Hemiphyllodactylus kyaiktiyoensis GRISMER, WOOD, QUAH, THURA, OAKS & LIN 2020|
Type locality: along a trail leading down the north-west facing flank of the mountain from the Golden Rock Pagoda, Mon State, Myanmar (17.47840°N 97.10042°E WGS; 1057 m in elevation).
|Types||Holotype. LSUHC 14032, Adult female, collected on 4 November 2018 at 1900 hrs by Evan S. H. Quah, L. Lee Grismer, Perry L. Wood Jr., Myint Kyaw Thura, Jamie R. Oaks, and Aung Lin.|
Paratypes. Female paratypes (LSUHC 14030–31, 14033–34) bear the same collection data as the holotype.
|Diagnosis||Diagnosis. Hemiphyllodactylus kyaiktiyoensis sp. nov. can be separated from all other species of Hemiphyllo- dactylus by possessing the unique combination of having a maximum SVL of 43.4 mm; 8–10 chin scales; enlarged postmentals; five circumnasal scales; 3–5 intersupranasals (=postrostrals); 7–10 supralabials; eight or nine infral- abials; 12–16 longitudinally arranged dorsal scales at midbody contained within one eye diameter and eight or nine ventral scales; four subdigital lamellae on the first finger and four or five on first toe; 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 stripe on trunk; faint, dark, ventrolateral stripe on trunk; no dark-colored pattern on trunk; wide, light-brown, nearly unicolor, vertebral region on trunk; beige, 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 kyaiktiyoensis sp. nov. is a genetically distinct member of the south lineage and is the sister species to H. pinlaungensis sp. nov. (Fig. 1) from which it bears an uncorrected pairwise sequence divergence of 9.5% (Table 10). Hemiphyllodactylus kyaiktiyoensis sp. nov. differs significantly from H. pinlaungensis sp. nov. in having a lower mean value of CS (9.2 vs 11.2, p = 0.014) and a lower adjusted mean value of SN (1.242 vs 1.363) p = 0.018, respectively; Table 6, Fig. 3). It differs further from H. pinlaungensis sp. nov. by having a significantly different centroid position based on the factor loadings of the PC1–3 (p = 0.002; Fig. 3). This latter metric can not be considered a diagnostic character but serves as a measure of the quantitative difference between these two species in multivariate space. Its differences from H. zwegabinensis sp. nov. are listed above in the comparisons section for that species.
|Etymology||The specific epithet is a toponym referring to the type locality of Kyaiktiyo Mountain, Mon State, Myanmar.|
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