Faculty of Forest Resources and Environmental Management, Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi, Vietnam..
Faculty of Forest Resources and Environmental Management, Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi, Vietnam. Faculty of Forestry, National University of Laos, Dong Dok Campus, Vientiane, Lao PDR..
Zootaxa. 2021 Apr 28;4965(2):351362. doi: 10.11646/zootaxa.4965.2.8.
A new species of the gekkonid genus Dixonius is described from Huaysorn-Huaysua village, Nasaithong District, Vientiane Capital, Laos. The new species can be distinguished from all other species by a combination of the following characters: maximum SVL 47.1 mm; 1921 longitudinal rows of dorsal tubercles at midbody; 2326 longitudinal rows of ventrals across the abdomen; 7 or 8 supralabials, 6 in mid-orbital position; 5 or 6 infralabials; 5 or 6 precloacal pores in males, femoral pores lacking; precloacal and femoral pores absent in females; a canthal stripe running from rostrum through the eye and terminating at back of head; dorsum brown with irregular dark marks. In phylogenetic analyses, the species is recovered as the sister taxon to D. siamensis, which occurs in Laos, Thailand, and Vietnam. Genetically, the two species are approximately 9.4% divergent from each other based on the complete mitochondrial ND2 gene with six partial or complete adjacent tRNAs. It is the 12th species known in the genus Dixonius and the second Dixonius species described from Laos.
一种新的壁虎属 Dixonius 物种被描述于老挝万象首都 Nasaithong 区 Huaysorn-Huaysua 村。新物种可通过以下特征的组合与所有其他物种区分开来：最大 SVL 47.1 毫米；中体 1921 条纵向背刺行；腹部有 2326 条纵向腹鳞行；7 或 8 个上唇鳞，6 个在眶间位置；5 或 6 个下唇鳞；雄性有 5 或 6 个泄殖腔前孔，无股孔；雌性无泄殖腔前孔和股孔；从吻部穿过眼睛延伸到头后部的眼线；背部棕色，有不规则的暗斑。在系统发育分析中，该物种被归为与分布于老挝、泰国和越南的 D. siamensis 密切相关的姐妹群。从完整的线粒体 ND2 基因及其六个相邻的部分或完整的 tRNA 来看，这两个物种的遗传差异约为 9.4%。这是 Dixonius 属的第 12 个已知物种，也是从老挝描述的第二个 Dixonius 物种。
