兽类学报

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中国啮齿类一属、种新纪录——道氏东京鼠

成市 陈中正 程峰 李佳琦 万韬 李权 李学友 吴海龙 蒋学龙
  

  1. 安徽师范大学生命科学学院
  • 出版日期:2018-05-30 发布日期:2018-05-08
  • 通讯作者: 陈中正 E-mail: chenzz@mail.kiz.ac.cn; 吴海龙 E-mail: whlong@mail.ahnu.edu.cn; 蒋学龙 E-mail:jiangxl@mail.kiz.ac.cn
  • 基金资助:
    环境保护部南京环境科学研究所基本科研业务专项(GYZX170308)

New record of a rodent genus (Murinae) in China—Tonkinomys daovantieni

CHENG Shi, CHEN Zhongzheng, CHENG Feng, LI Jiaqi, WAN Tao, LI Quan, LI Xueyou, WU Hailong, JIANG Xuelong   

  1. College of life science, Anhui Normal University
  • Online:2018-05-30 Published:2018-05-08

关键词: 东京鼠属, 道氏东京鼠, 新纪录, 中国

Abstract:

From November 2016 to April 2017, we collected four rodent specimens from Jinchang, Babu and Majie in Malipo County, Yunnan Province, China. They are different from any mammalian species described so far in China and have been identified as Tonkinomys daovantieni Musser et al., 2006, a new record of the genus in China. Its main features are: dorsal pelage grayish black with semi-spinous, dense fur, ventral pelage grayish; a thick, bicolored tail considerably shorter than length of head and body, the distal 1/3 white, the proximal 2/3 of its dorsal and lateral dark brown and ventral white; the first and the second molars consist of tightly pressed rows exposing chunky chewing surfaces in the shapes of two parallel chevrons and a roughly diamond-shaped chewing surface, the third molar consists of a front chevron formed by union of protoconid and metaconid and behind that a large oblong structure likely representing the complete fusion of hypoconid and entoconid. Each lower molar has two roots. The Cyt b sequence is 97.7% identical to the specimens from the type locality and phylogenetic analysis by maximum likelihood algorithm supported the two populations to be monophyletic (BS=100%). This finding is the first recorded distribution of genus Tonkinomys in China and outside of the type locality.

Key words: Tonkinomys, Tonkinomys daovantieni, New record, China