| Autor: |
Ma S; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.; College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China., Shi SC; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.; Hubei Engineering Research Center for Protection and Utilization of Special Biological Resources in the Hanjiang River Basin, School of Life Science, Jianghan University, Wuhan 430056, China., Qian TY; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China., Sui LL; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.; College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China., Wang B; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.; College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China., Jiang JP; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.; College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China. |
| Abstrakt: |
A new Cyrtodactylus species, C. laevis sp. nov. , from the dry-hot valleys near the Yarlung Zangbo River in Re Village, Jindong Countryside, Lang County, Linzhi City, Xizang Autonomous Region, China, is described herein based upon the integrative taxonomic results combining molecular phylogenetic systematics and morphological characteristic comparisons. Our molecular phylogeny was inferred by combining three mitochondrial gene fragments ( 16S / CO1 / ND2 ), and it indicated a distinct differentiation between the new species and C. tibetanus species complex, with obvious genetic distances ( 16S 9.9-11.8%/ CO1 16.5-18.2%/ ND2 16.6-18.5%) detected, supporting its validity. Morphologically, the new species can be easily distinguished from its congers by the following characters: (1) medium size (SVL 48.58-50.92 mm), (2) tubercles on dorsum sparse, (3) tail segments absent and tubercles on tails absent, (4) supralabials 10-12 and infralabials 8-10, (5) interorbital scales between anterior corners of the eyes 28-32, (6) scale rows at midbody 96-98, (7) ventral scales between mental and cloacal slit 145-153, (8) ventral scale rows 41-45, and (9) 4 to 5 white-yellow transverse bands with brown dots and black merges between the nape and sacrum. The description of C. laevis sp. nov. increased the total species number of C. tibetanus group to three, and the total Cyrtodactylus species number in Xizang to six and in China to eleven. The new species is currently only known from the type locality with its extremely small populations and needs future surveys to reveal its distribution range, population status, natural history, and mechanisms so that the new species can coexist with Altiphylax medogense . |
