Shize LI,Gang WEI,Yanlin CHENG,et al.Description of a New Species of the Asian Newt Genus Tylototriton sensu lato (Amphibia: Urodela: Salamandridae) from Southwest China[J].Asian Herpetological Research(AHR),2020,11(4):282-296.[doi:10.16373/j.cnki.ahr.200026]
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Description of a New Species of the Asian Newt Genus Tylototriton sensu lato (Amphibia: Urodela: Salamandridae) from Southwest China
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2020 VoI.11 No.4
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Description of a New Species of the Asian Newt Genus Tylototriton sensu lato (Amphibia: Urodela: Salamandridae) from Southwest China
Shize LI12 Gang WEI3 Yanlin CHENG1 Baowei ZHANG4 and Bin WANG12*
1 Department of Food Science and Engineering, Moutai University, Renhuai 564500, Guizhou, China
2 CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
3 Biodiversity Conservation Key Laboratory, Guiyang College, Guiyang 550002, Guizhou, China?
4 College of Life Science, Anhui University, Hefei 230039, Anhui, China
China molecular phylogenetic analysis new species newts taxonomy
The newt genus Tylototriton sensu lato is widely distributed in Eastern, Southeastern and Southern Asia. Previous studies indicated that there still has been several cryptic species in the group. Here, we describe a new species of the genus from Guizhou Province, China. Phylogenetic analyses based on mitochondrial DNA supported that the new species was resolved as an independent clade nested into the Tylototriton sensu lato clade. On morphology, the new species could be distinguished from its congeners by a combination of the following characters: large body size (SVL 76.8–85.2 mm in male and 76.3–87.4 mm in female); head longer than wide; snout truncate in dorsal view; tail length longer than the snout-vent length in males; the distal digit ends, ventral digits, peripheral area of cloaca and the tail’s lower margin are orange; relative length of toes III > IV > II > I > V; the distal tips of the limbs greatly overlapping when the fore and hind limbs are pressed along the trunk; fingertips reach the level beyond the snout when the forelimbs are stretched forward.


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Last Update: 2020-12-25