A new species of Cyrtodactylus (Squamata: Gekkonidae) from Ninh Binh Province, Vietnam

Abstract

We describe a new species of the genus Cyrtodactylus on the basis of six specimens collected from the limestone forest of the Van Long Wetland Nature Reserve, Ninh Binh Province, Vietnam. Cyrtodactylus soni sp. nov. can be distinguished from its congeners by genetic distinction and morphological differences in number of femoral and precloacal pores, femoral scales, ventral scales, lamellae, subcaudals, and dorsal tubercle arrangement, as well as in size and color pattern. In the phylogenetic analyses, the new species is nested in a clade containing taxa from northwestern and northcentral Vietnam and northern Laos.

A NEW DISTRIBUTION RECORD OF Cyrtodactylus soni Le, Nguyen, Le & Ziegler, 2016 (Reptilia: Squamata: Gekkonidae) FROM HOA BINH PROVINCE AND THREATS TO THE POPULATION

“…Cyrtodactylus soni from Hoa Binh province, Vietnam (Fig. 1 A-C Morphological characters of the specimens from Hoa Binh province agreed with the description of Cyrtodactylus soni by Le et al (2016). Medium-size (SVL) 86.1-92.5 mm (mean ± SD: 88.4 ± 3.6 mm); tail length (TaL) 101.2-108.6 mm (mean ± SD: 105 ± 3.7mm); head elongated, depressed (mean HW/mean HL 0.67), distinct from neck; loreal region concave; snout long (mean SE/mean HL 0.41), longer than diameter of the orbit (mean OD/mean SE 0.51); snout scales small, granular; eye large (mean OD/mean HL 0.21), pupils vertical; ear oval shaped, small; rostral wider than high, rostral bordered by nostril, and first supranasal on each side; nares round, surrounded by supranasal, rostral, first supralabial, and three postnasals; mental triangular; postmentals two, enlarged, in broad contact posteriorly, bordered by mental anteriorly, first infralabial laterally, and an enlarged chin scale posteriorly; supralabials 10-11; infralabials 9-10.…”

“…Remarks. Specimens from Hoa Binh province slightly differ from the original description of Le et al (2016) by having fewer number of scales (175-184 versus 186-212 in type series) along the midbody from mental to anterior edge of cloaca, slightly more precloacal pore counts in males (6-8 versus 6-7 in type series), more regularly arranged dark transverse bands on body (versus irregularly arranged ones in type series), and also less dark markings in the interior parts of dorsal head of two specimens.…”

“…Cyrtodactylus soni is currently known as an endemic species in Vietnam. The species was originally described from the limestone karst forest of the Van Long Nature Reserve, Ninh Binh province by Le et al (2016). Luu et al (2018) recently expanded the species distribution from the limestone forest of Thanh Son commune, Kim Bang district, Ha Nam province.…”

Taxonomic status of two populations of Bent-toed Geckos of the Cyrtodactylus irregularis complex (Squamata: Gekkonidae) with description of a new species from Nui Chua National Park, southern Vietnam

“…Once believed to be a widespread, variable species, Cyrtodactylus irregularis was shown to be composed of at least 13 distinct species with very restricted geographical distributions. So far 40 Cyrtodactylus species have been recorded from Vietnam (Grismer et al 2015, Nguyen et al 2015, Le et al 2016, Luu et al 2017; the presently described species is thus the 41 th . More than 40% of the described Cyrtodactylus species recorded from Vietnam thus belong to the C. irregularis group.…”

老挝东北部喀斯特地貌发现弯趾虎属一新种（爬行纲：壁虎科）

“…Besides differentiating Cyrtodactylus thathomensis sp. nov. from all congeneric species found within a 500-km radius, its combination of characters presented in the Diagnosis allows to unambiguously separate it from all species found in Bangladesh, Cambodia, Myanmar, Thailand and Vietnam (see, among other references in the literature cited, Bauer, 2003 ; Connette et al, 2017 ; Grismer et al, 2012 ; Le et al, 2016 ; Mahony et al, 2009 ; Mahony, 2009 ; Panitvong et al, 2014 ; Pauwels & Sumontha, 2014 ; Pauwels et al, 2014 , 2016 ; Sumontha et al , 2014 , 2015 ).…”