中国兽类一新纪录:尼泊尔长尾鼩鼱  

First record of Nepalese brown-toothed shrew(Episoriculus soluensis)in China

作　　者：刘莹洵 彭步青 王旭明 廖锐[1] 潘璇 刘少英[1] LIU Yingxun;PENG Buqing;WANG Xuming;LIAO Rui;PAN Xuan;LIU Shaoying(Sichuan Academy of Forestry,Chengdu 610081,China;Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu 610041,China)

机构地区：[1]四川省林业科学研究院,成都610081 [2]中国科学院成都生物研究所,成都610041

出　　处：《兽类学报》2024年第5期551-557,共7页Acta Theriologica Sinica

基　　金：西藏重点区域野生动植物资源调查(ZL202203601);国家自然科学基金(32370496)。

摘　　要：2023年8月在西藏自治区亚东县上亚东乡附近和定结县陈塘镇附近采集到4只鼩鼱。该种背毛深棕色,腹毛浅黄棕色,背腹界线不明显,尾上下两色;头骨顶骨较为隆突,上单尖齿4枚,上颌门齿后齿尖与第一上单尖齿高度相近,齿尖呈浅棕色,符合尼泊尔长尾鼩鼱(Episoriculus soluensis)的鉴定特征。4项外形和9项头骨测量数据与尼泊尔长尾鼩鼱原始测量数据基本一致。在基于Cyt b构建的系统树中与从GenBank中下载的尼泊尔长尾鼩鼱聚为一枝,两者间遗传距离为3.0%。基于形态和分子鉴定,确定这批标本是尼泊尔长尾鼩鼱,为中国兽类新纪录。In August 2023,four specimens of shrew were collected from the Upper Yadong Township,Yatung,and Chentang Town,Tingkye,Xizang Autonomous Region.Dorsally,the hair of this species is dark brown,the ventral hair light yellowish brown,the dorsoventral line is indistinct,and the tail two colors divided above and below.The four external measurements and nine skull measurements are basically consistent with the original measurements of Episoriculus soluensis.The parietal bone of the skull protrudes.The specimens have four upper unicuspids,the posterior cusps of the upper incisor are similar in height to the first upper unicuspid,and the cusps are light brown.These characteristics are consistent with those of E.soluensis,as is a phylogenetic analysis of Cyt b sequences based on data for the species in Gen‐Bank.The K2P distance between them is merely 3.0%.Thus,morphological and molecular analyses confirm the collected specimens constitute a new species record for the mammalian fauna of China.

关 键 词：尼泊尔长尾鼩鼱 系统发育 形态学 新纪录 

分 类 号：Q958.3[生物学—动物学]