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侯绍兵, 袁智勇, 魏平凡, 赵桂刚, 刘高慧, 吴云鹤, 沈文箐, 陈进民, 郭鹏, 车静. 2021: 云南省发现东亚腹链蛇属(Hebius)一新种并确定腾冲腹链蛇(Hebius septemlineatus)有效性. 动物学研究, 42(5): 620-625. DOI: 10.24272/j.issn.2095-8137.2021.093
引用本文: 侯绍兵, 袁智勇, 魏平凡, 赵桂刚, 刘高慧, 吴云鹤, 沈文箐, 陈进民, 郭鹏, 车静. 2021: 云南省发现东亚腹链蛇属(Hebius)一新种并确定腾冲腹链蛇(Hebius septemlineatus)有效性. 动物学研究, 42(5): 620-625. DOI: 10.24272/j.issn.2095-8137.2021.093
Shao-Bing Hou, Zhi-Yong Yuan, Ping-Fan Wei, Gui-Gang Zhao, Gao-Hui Liu, Yun-He Wu, Wen-Jing Shen, Jin-Min Chen, Peng Guo, Jing Che. 2021: Molecular phylogeny and morphological comparisons of the genus Hebius Thompson, 1913 (Reptilia: Squamata: Colubridae) uncover a new taxon from Yunnan Province, China, and support revalidation of Hebius septemlineatus (Schmidt, 1925). Zoological Research, 42(5): 620-625. DOI: 10.24272/j.issn.2095-8137.2021.093
Citation: Shao-Bing Hou, Zhi-Yong Yuan, Ping-Fan Wei, Gui-Gang Zhao, Gao-Hui Liu, Yun-He Wu, Wen-Jing Shen, Jin-Min Chen, Peng Guo, Jing Che. 2021: Molecular phylogeny and morphological comparisons of the genus Hebius Thompson, 1913 (Reptilia: Squamata: Colubridae) uncover a new taxon from Yunnan Province, China, and support revalidation of Hebius septemlineatus (Schmidt, 1925). Zoological Research, 42(5): 620-625. DOI: 10.24272/j.issn.2095-8137.2021.093

云南省发现东亚腹链蛇属(Hebius)一新种并确定腾冲腹链蛇(Hebius septemlineatus)有效性

Molecular phylogeny and morphological comparisons of the genus Hebius Thompson, 1913 (Reptilia: Squamata: Colubridae) uncover a new taxon from Yunnan Province, China, and support revalidation of Hebius septemlineatus (Schmidt, 1925)

  • 摘要: 东亚腹链蛇属的分类学研究近年来已取得较大进展,但部分物种或类群在分类界定上仍存在争议,亟待解决。基于分子系统学(cyt b 片段)和形态学比较分析,我们对2016–2020年间采集到的24条来自中国云南省的东亚腹链蛇属物种标本开展了研究。结果显示,云南省维西县的标本在形态和遗传上均与属内其它物种存在明显差异,我们将其描述为一新种——维西腹链蛇( Hebius weixiensis sp. nov. )。此外,比较研究显示,云南省腾冲市的“八线腹链蛇(H. octolineatum)”标本与来自昆明市的八线腹链蛇标本在形态特征和遗传分化方面均差异较大,通过与地模标本原始形态描述比较,将其恢复为腾冲腹链蛇(H. septemlineata comb. nov. ),确定了腾冲腹链蛇物种的有效地位。最后对云南省分布的腾冲腹链蛇和八线腹链蛇的形态特征及地理分布进行了厘定。

     

    Abstract: We describe a new species of the genus Hebius and provide evidence for the validity of H. septemlineatus comb. nov. . Morphological and molecular analyses of Hebius specimens collected in Yunnan Province, China, revealed three distinct lineages, namely the newly described Hebius weixiensis sp. nov. , as well as H. octolineatus (Boulenger, 1904), and H. septemlineatus comb. nov. (Schmidt 1925), which is removed from synonymy with H. octolineatus. Based on mitochondrial genealogy, Hebius weixiensis sp. nov. is sister to H. septemlineatus comb. nov. , while H. octolineatus is sister to H. bitaeniatus. The new species and H. septemlineatus comb. nov. showed considerable genetic divergence from their recognized congeners (uncorrected P-distance ≥3.9%). Furthermore, the new species and H. septemlineatus comb. nov. can be diagnosed from closely related congeners by a combination of pholidosis characters.

     

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