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王剀, 于中斌, VogelGernot, 车静. 2021: 中国白环蛇属Lycodon H. Boie in Fitzinger, 1827分类厘定,记两新种并恢复及提升白链蛇沙坝亚种Dinodon septentrionale chapaense Angel, Bourret, 1933. 动物学研究, 42(1): 62-86. DOI: 10.24272/j.issn.2095-8137.2020.286
引用本文: 王剀, 于中斌, VogelGernot, 车静. 2021: 中国白环蛇属Lycodon H. Boie in Fitzinger, 1827分类厘定,记两新种并恢复及提升白链蛇沙坝亚种Dinodon septentrionale chapaense Angel, Bourret, 1933. 动物学研究, 42(1): 62-86. DOI: 10.24272/j.issn.2095-8137.2020.286
Kai Wang, Zhong-Bin Yu, Gernot Vogel, Jing Che. 2021: Contribution to the taxonomy of the genus Lycodon H. Boie in Fitzinger, 1827 (Reptilia: Squamata: Colubridae) in China, with description of two new species and resurrection and elevation of Dinodon septentrionale chapaense Angel, Bourret, 1933. Zoological Research, 42(1): 62-86. DOI: 10.24272/j.issn.2095-8137.2020.286
Citation: Kai Wang, Zhong-Bin Yu, Gernot Vogel, Jing Che. 2021: Contribution to the taxonomy of the genus Lycodon H. Boie in Fitzinger, 1827 (Reptilia: Squamata: Colubridae) in China, with description of two new species and resurrection and elevation of Dinodon septentrionale chapaense Angel, Bourret, 1933. Zoological Research, 42(1): 62-86. DOI: 10.24272/j.issn.2095-8137.2020.286

中国白环蛇属Lycodon H. Boie in Fitzinger, 1827分类厘定,记两新种并恢复及提升白链蛇沙坝亚种Dinodon septentrionale chapaense Angel, Bourret, 1933

Contribution to the taxonomy of the genus Lycodon H. Boie in Fitzinger, 1827 (Reptilia: Squamata: Colubridae) in China, with description of two new species and resurrection and elevation of Dinodon septentrionale chapaense Angel, Bourret, 1933

  • 摘要: 虽然近年来白环蛇属Lycodon分类研究进展迅速,但属内部分种组的分类问题仍有待解决,特别是在我国分布的种组及物种。一方面而言,国内仍有很多区域未开展过系统的爬行动物多样性调查;另一方面,已调查的区域仍有大量已知物种的存疑纪录亟需进一步确认。本研究结合形态学和分子生物学证据,对中国白环蛇属部分现存分类问题进行了梳理:其中,首次于云南西北部金沙江干热河谷记录白环蛇属物种,并将其描述为一新种,即锯纹白环蛇L. serratus sp. nov. ;同时于四川攀枝花市区公园内采集到原记录的双全白环蛇L. fasciatus,经对比确定其实际代表了双全白环蛇种组一新种,即隐士白环蛇L. obvelatus sp. nov. 。此外,厘定了白链蛇L. septentrionalis在中国的分布情况,恢复白链蛇沙坝亚种Dinodon septentrionale chapaense有效性,并将其提升至种级,即沙坝白环蛇L. chapaensis comb. nov.,同时将2019年于越南北部描述的南东白环蛇L. namdongensis定为沙坝白环蛇的次定同物异名;而恢复、提升后的沙坝白环蛇也代表了我国蛇类的新纪录。最后,本文在已发表文献资料的基础上,纠正了双全白环蛇和黑背白环蛇L. ruhstrati的部分误定和因此产生的错误分布纪录,指出了中国白环蛇属分类仍存的部分问题,并更新了我国白环蛇属已知20种的分类检索表及分布情况。

     

    Abstract: While considerable progress has been made in the taxonomic studies of the genus Lycodon in Asia, questions remain to be clarified regarding the taxonomy of certain groups, particularly those containing species in China. Not only do many regions in China remain overlooked by herpetologists, resulting in the possibility of undiscovered new species, but the surveyed areas also have suspicious records of recognized congeners that require taxonomic confirmations. Combining both morphological and genetic data, we tackle these outstanding issues in the taxonomy of Lycodon in China. In particular, we discover two new species of Lycodon: one from the previously neglected hot-dry valley in the northern Hengduan Mountain Region close to Tibet, and another recluse and cryptic species from the L. fasciatus complex in the downtown park of a major city in southern Sichuan Province. Additionally, we clarify the distribution of L. septentrionalis in China and resurrect and elevate its junior synonym subspecies, Dinodon septentrionale chapaense, as a full, valid species, and we synonymize the recently described L. namdongensis to the resurrected L. chapaensis comb. nov .. Lycodon chapaensis comb. nov . thus represents a new national record of reptilian fauna of China. Lastly, based on literature review, we also correct some of the erroneous records of L. fasciatus and L. ruhstrati in China, point out remaining taxonomic issues of the genus for future research, and update the dichotomous key and distribution of the 20 species of Lycodon currently recorded from China.

     

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