Pei Xiaoxin, Chen Zhongzheng, Li Quan, Li Xueyou, Pu Changzhe, Luo Kang, Luo Jing, Pu Mingjin, Wang Hongjiao, Khanal Laxman, Jiang Xuelong
State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China Kunming Institute of Zoology, Chinese Academy of Sciences Kunming China.
Kunming College of Life Sciences, University of Chinese Academy of Sciences, Kunming, China University of Chinese Academy of Sciences Kunming China.
Zookeys. 2024 Mar 14;1195:139-155. doi: 10.3897/zookeys.1195.115699. eCollection 2024.
Himalayan shrews of the genus (Soricidae, Eulipotyphla), currently represented by four nominal species, are endemic to the Himalayas and the Gaoligong Mountains. In April 2022 and April 2023, a total of 10 specimens of were collected from Beibeng and Damu, Medog County, Tibet, China. The morphology of the specimens was compared with the four recognised species of the genus . Additionally, two mitochondrial ( and ) and three nuclear (, and ) genes were sequenced to test the phylogenetic relationships of these specimens with the other species. Our results indicate that these specimens represent a distinct species, , which is formally described here. The new species is distinguished from the other species by the combination of darker pelages, smaller size, the relatively stubby nasal and the widened posterior processes of incisors. Phylogenetic analyses revealed the new species is sister to . The p-distance of gene between sp. nov. and other nominal species ranges from 9.1-16.3%. This new species has a known distribution at an elevation of 1,500-2,125 m in Medog County, Tibet, China. The discovery of this new species from Medog County has important implications for interpreting small mammal biogeographic patterns in the eastern Himalaya and the mountain chains of south-west China.
（鼩鼱科，真盲缺目）属的喜马拉雅鼩鼱，目前有四个命名物种，是喜马拉雅山脉和高黎贡山的特有物种。2022年4月和2023年4月，在中国西藏墨脱县背崩和达木共采集到10份该属标本。将这些标本的形态与该属四个已确认的物种进行了比较。此外，对两个线粒体基因（和）和三个核基因（、和）进行了测序，以测试这些标本与其他物种的系统发育关系。我们的结果表明，这些标本代表了一个独特的物种，即，本文对其进行正式描述。新物种与其他物种的区别在于毛色较深、体型较小、鼻相对短粗以及门齿后突加宽。系统发育分析表明新物种是物种的姐妹种。新物种与其他命名物种之间基因的p距离在9.1%-16.3%之间。该新物种在中国西藏墨脱县海拔1500-2125米处有已知分布。从墨脱县发现这个新物种对于解释东喜马拉雅和中国西南部山脉的小型哺乳动物生物地理模式具有重要意义。
