A new species of Cyrtodactylus Gray, 1827 (Squamata, Gekkonidae) from Yunnan, China

Abstract

A new species of Cyrtodactylus is described on the basis of five specimens collected from the karst formations of Zhenkang County, Yunnan Province, China. Cyrtodactylus zhenkangensissp. nov. is recognized by having a unique combination of morphological characters, the most diagnostic being: 12–15 enlarged femoral scales on each thigh; 2–5 femoral pores on each thigh in males, 0–3 pitted scales on each thigh in females; eight or nine precloacal pores in a continuous row or separated by one poreless scale in males, 7–9 pitted scales in females; subcaudals enlarged, arranged alternately as single and double on anterior and mostly single at middle and posterior; dorsal surface of head with obvious reticulations. Phylogenetic analyses show that the new species is a member of the C. wayakonei species group and a sister taxon to a clade consisting of C. wayakonei and C. martini based on Maximum Likelihood analyses and Bayesian Inference and differs from its congeners by at least 12.0% genetic divergence in a fragment of the COI gene.

A new species of the Cyrtodactylus chauquangensis group (Squamata, Gekkonidae) from the borderlands of extreme northern Thailand

“…Three different partition schemes, codon, gene, and unpartitioned, were run for three model based phylogenetic analyses -Maximum Likelihood (ML), Bayesian Inference, (BI) and Bayesian Evolutionary Analysis Sampling Trees (BEAST) -in order to search for significant support for the weak nodes in recent analyses (Liu and Rao 2021a, 2021bChomdej et al 2022) using NADH dehydrogenase subunit 2 (ND2) gene and its flanking tRNAs. Cyrtodactylus dammathetensis Grismer, Wood, Thura, Zin, Quah, Murdoch, Grismer, Lin, Kyaw & Lwin, 2017and C. sinyineensis Grismer, Wood, Thura, Zin, Quah, Murdoch, Grismer, Lin, Kyaw & Lwin, 2017(in Grismer et al 2018a were used as outgroups to root the ML and BI trees based on Grismer et al (2021).…”

A new species of Cyrtodactylus Gray, 1827 (Squamata, Gekkonidae) from southwestern Yunnan, China

“…Bilateral scale counts were given as left/right. The methodology of measurements and meristic counts followed Liu and Rao (2021a, b) Morphological comparisons were based on the original descriptions of each species (Hoang et al 2007;Bauer et al 2009Bauer et al , 2010Ngo and Grismer 2010;Nguyen et al 2010Nguyen et al , 2015bNguyen et al , 2017Sumontha et al 2010;Luu et al 2011;Ngo 2011;Ngo and Chan 2011;Kunya et al 2014;Nazarov et al 2014;Nguyen et al 2014;Schneider et al 2014Schneider et al , 2020Le 2016;Pham et al 2019;Liu and Rao 2021a;Liu et al 2021;Zhang et al 2021).…”

“…The Cyrtodactylus chauquangensis Hoang, Orlov, Ananjeva, Johns, Hoang & Dau, 2007 species group, previously C. wayakonei Nguyen, Kingsada, Rösler, Auer & Ziegler, 2010 species group, is a karst ecotype species group, which is distributed in northern Indochina, ranging from northern Thailand and Laos to northwestern and central Vietnam, and to Yunnan Province in southern China (Grismer et al 2021a, b). This species group contains 23 named species to date (Liu and Rao 2021a;Liu et al 2021;Zhang et al 2021).…”

A new species of the Cyrtodactylus chauquangensis species group (Squamata, Gekkonidae) from Lao Cai Province, Vietnam

“… Grismer et al (2021a , 2021b ) provided a taxonomic review and analyzed phylogenetic relationships of 17 species and one undescribed form from northern Thailand. The group currently contains 23 recognized species with several taxa recently discovered from Yunnan Province, southern China ( Grismer et al 2021a , 2021b , 2021c ; Liu and Rao 2021 , 2022 ).…”