Discovery of Chodsigoa furva (Mammalia: Soricidae) in Linzhi, Tibet, China
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1.Anhui Normal University;2.Kunming Institute of Zoology, Chinese Academy of Sciences

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    Abstract:

    The Dusky long-tailed shrew (Chodsigoa furva) is one of the least known shrews. Currently, only five specimens are recorded. In November 2018, a specimen of Chodsigoa was collected from Zhamu, Bomi, Linzhi, Tibet (29°48′25″ N, 95°41′56″ E) at an altitude of 3 400 m. We compared its morphology with that of other species in the genus. We also sequenced the complete Cytochrome b gene (Cyt b) and obtained homologous sequences of other Chodsigoa species from GenBank. Maximum-likelihood inference and Kimura 2-parameter (K2P) distances were used to estimate the phylogenetic status of the specimen. The dorsal pelage of the specimen is dark gray and the ventral pelage is imperceptibly lighter; the tail is obviously longer than the head and the body length, dark brown above and slightly pale below, and naked at the tip. Its skull is strong, its braincase is well-domed, and the zygomatic plate is very narrow (Fig. 1, Table 1), which is consistent with the characteristics of Chodsigoa furva. The maximum likelihood tree based on the complete Cyt b gene showed that the individual forms a monophyletic clade with other specimens of C. furva (popularity rating BS = 100, Fig. 2). The genetic distance between them was 2.25%﹣2.34%. Based on the morphological and molecular evidence, we confirm that the individual belongs to C. furva, making it the first record of this species in Tibet, China.

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zhangmin,裴枭鑫,曲潍滢,陈中正,蒋学龙. 2021. Discovery of Chodsigoa furva (Mammalia: Soricidae) in Linzhi, Tibet, China. Chinese Journal of Zoology, 56(6): 865-870.

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History
  • Received:April 30,2021
  • Revised:October 27,2021
  • Adopted:October 25,2021
  • Online: December 02,2021
  • Published: December 20,2021