Tuesday, June 1, 2021

[Herpetology • 2021] Hemiphyllodactylus zhutangxiangensis • A New Species of Hemiphyllodactylus Bleeker (Squamata: Gekkonidae) from Yunnan, China and Its Phylogenetic Relationship to Other Congeners


Hemiphyllodactylus zhutangxiangensis 
 Agung, Grismer, Grismer, Quah, Chornelia, Lu & Hughes, 2021
Zhutangxiang Slender Gecko ||  DOI: 10.11646/zootaxa.4980.1.1

A new species of the gekkonid genus Hemiphyllodactylus is described from forested karst hills near Zhutangxiang town, Lancang Lahu Autonomous County, Yunnan, China. Hemiphyllodactylus zhutangxiangensis sp. nov. is distinguished from all other congeners in morphology and an uncorrected pairwise sequence divergence of greater than 14% based on 1039 base pairs of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). The new species is defined by the following characters: a maximum SVL of 44.42 mm; 7–9 chin scales; enlarged postmentals; five circumnasal scales; 2–4 internasal scales; 8–11 supralabial scales; 8–11 infralabial scales; subdigital lamellae on fingers II–V (3–5)-(4–6)-(4 or 5)-(4 or 5); subdigital lamellae on toes II–V (4 or 5)-(4 or 5)-(4–6)-(4 or 5); dorsal scales 11–15; ventral scales 5–7; 20–23 continuous femoroprecloacal pores; having pale-grey base color on the body with various darker transverse dorsal blotches; a dark postorbital stripe extending to at least to the base of the neck; no dark dorsolateral or ventrolateral stripe on trunk; and postsacral marking bearing a dark fork-like pattern with anteriorly projecting arms. The new species brings the species total of Hemiphyllodactylus in China to 11.

Keywords: Reptilia, discovery, slender geckos, endemism, karst, integrative taxonomy

Hemiphyllodactylus zhutangxiangensis sp. nov.:
 (A) holotype, KIZ061157, male in life;
(B) paratype, KIZ061159, female, in life.
Photos: Evan S. H. Quah.

Hemiphyllodactylus zhutangxiangensis sp. nov.
Zhutangxiang Slender Gecko

Etymology. The specific epithet, zhutangxiangensis, refers to the name of the town Zhutangxiang in Lancang Lahu Autonomous County, Yunnan Province, China, close to where the specimens were found.

Ade Prasetyo Agung, L. Lee Grismer, Jesse L. Grismer, Evan S. H. Quah, Ada Chornelia, Jianmei Lu and Alice C. Hughes. 2021. A New Species of Hemiphyllodactylus Bleeker (Squamata: Gekkonidae) from Yunnan, China and Its Phylogenetic Relationship to Other Congeners. Zootaxa. 4980(1); 1–27. DOI: 10.11646/zootaxa.4980.1.1