A new species of Cyrtodactylus (Squamata: Gekkonidae) from northwestern Vietnam

Abstract

We describe a new species of Cyrtodactylus on the basis of seven specimens collected from karst forests of Son La and Dien Bien provinces, Vietnam. Cyrtodactylus taybacensis sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by a combination of the following characters: medium size (SVL up to 97.5 mm); dorsal tubercles in 13–16 irregular rows; ventral scale rows 30–38; ventrolateral folds present without interspersed tubercles; each thigh with 11–13 enlarged femoral scales; femoral pores absent in males and females; precloacal pores 11–13 in males, five or 15 pitted scales in females, in a continuous row; postcloacal tubercles two or three; lamellae under toe IV 16–20; subcaudal scales transversely enlarged; dorsal head with dark brown marking, oval, triangle and arched shape; five brown dorsal bands between limb insertions. In phylogenetic analyses, the new species is recovered as a member of the Cyrtodactylus wayakonei species group, and strongly supported as the sister taxon of C. cf. bichnganae from Son La City in all analyses.

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

“…The obtained sequence alignment is 690 bp in length. The topologies derived from ML and BI analyses were similar and basically consistent with those of Nguyen et al (2017), Pham et al (2019), and Schneider et al (2020). The sequences of three specimens collected from Zhenkang County, Yunnan, China were nested them within the Cyrtodactylus wayakonei group and the sister group to a clade consisting of C. wayakonei Nguyen, Kingsada, Rösler, Auer & Ziegler, 2010 and C. martini Ngo, 2011 with strong support in ML and moderate support in BI (Fig.…”

“…According to Pham et al (2019) and Schneider et al (2020), the Cyrtodactylus wayakonei species group contains 16 species, namely C. bichnganae, C. bobrovi, C. chauquangensis, C. cucphuongensis, C. houaphanensis, C. huongsonensis, C. martini, C. ngoiensis, C. otai, C. puhuensis, C. soni, C. sonlaensis, C. spelaeus, C. taybacensis, C. vilaphongi, and C. wayakonei.…”

“…Morphological comparisons and analyses were based on specimen examination and data obtained from the literature (Hoang et al 2007;Rösler et al 2008;Bauer et al 2009Bauer et al , 2010Ngo and Grismer 2010;Nguyen et al 2010Nguyen et al , 2015Nguyen et al , 2017Sumontha et al 2010;Teynié and David 2010;Luu et al 2011Luu et al , 2013Luu et al , 2016Ngo 2011;Ngo and Chan 2011;Schneider et al 2011Schneider et al , 2014Schneider et al , 2020Kunya et al 2014;Nazarov et al 2014Nazarov et al , 2018Nguyen et al 2014;Pham et al 2019).…”

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).…”

A new Cyrtodactylus (Squamata: Gekkonidae) from Binh Thuan Province, southern Vietnam

“…Nguyen et al 2006Nguyen et al , 2014Ngo 2008aNgo , 2008bNgo et al , 2017Rösler et al 2008;Ziegler et al 2010;Luu et al 2011;Ngo & Chan 2011;Nazarov et al 2012;Phung et al 2014;Grismer et al 2015Grismer et al , 2017T.Q. Nguyen et al 2015Le et al 2016;Pauwels et al 2018;Murdoch et al 2019;Pham et al 2019). Symbols: / = data not available in literature; -= characteristic does not exist; + = characteristic exists but is not uniquely determined; * = broken or regenerated tail.…”