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Lycodon liuchengchaoi Found in Hupingshan, Hunnan, China

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Linzhuang Bai
Linzhuang Bai
Linzhuang Bai
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Kai Wang at Kunming Institute of Zoology CAS
Kai Wang
Kang Zujie
Kang Zujie
Meisi Liu
Meisi Liu
Meisi Liu
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动物学杂志 Chinese Journal of Zoology 2018, 53(4): 640, 659
湖南壶瓶山发现刘氏链蛇
Lycodon liuchengchaoi Found in Hupingshan, Hunan, China
自原始描述发表以来，刘氏链蛇（Lycodon liuchengchaoi Zhang, Jiang, Vogal, Rao, 2011）仅已知分布于四川（中
部、西北部）（Zhang et al. 2011）、陕西（南部）（彭丽芳等 2014）、安徽（Zhang et al. 2015）及浙江（彭丽芳等 2017）
四省。2016 年7月21 日，作者于湖南壶瓶山国家级自然保护区的落叶阔叶林（110°47′23.45″E，30°03′42.27″N，
海拔 1 421 m）采集到雄性成体蛇类标本 1号（标本号：20160721303，图 1），标本保存在湖南壶瓶山国家级自然
保护区标本馆。经形态鉴定比较，该标本与刘氏链蛇原始描述及后补充描述最为接近，故鉴定为刘氏链蛇，且为
湖南省蛇类物种分布新记录种。
标本头体长 431 mm，尾长 99 mm；头长 8.65 mm，头宽 5.98 mm。吻鳞近梯形；前、后鼻鳞各 1枚；颊鳞 1
图1 刘氏链蛇
Fig. 1 Lycodon liuchengchaoi
a. 活体背面；b. 活体头部；c. 浸泡标本腹部；d. 浸泡标本头侧面；e. 浸泡标本头背面；f. 浸泡标本头腹面。
a. Dorsal view in life; b. Dorsal head view of head in life; c. Ventral view in preservative; d. Lateral head view in preservative; e. Dorsal head view
in preservative; f. Ventral head view in preservative.
第一作者介绍 白林壮，男，工程师；研究方向：野生动植物保护与自然保护区管理；E-mail: 766321406@qq.com。
收稿日期：2017-09-09，修回日期：2018-02-13 DOI: 10.13859/j.cjz.201804024
4期 白林壮等：湖南壶瓶山发现刘氏链蛇 ·659·
枚，入眶，不与鼻间鳞相接；鼻间鳞 1对；前额鳞 1枚，眶后鳞 2枚；上唇鳞 8枚，3 ~ 5 枚入眶；下唇鳞 8枚，
前5枚切颔片；颔片 2对。背鳞 17-17-15，起棱极其微弱；腹鳞 202 枚；肛鳞二分，尾下鳞成双，90 对。生活时
背面黑色，自头至尾伴有浅橘黄色环纹；环纹向腹部延伸连续至腹面。
相比较原始描述，湖南标本吻合刘氏链蛇鉴别特征，但亦表现出一定的形态差异，包括尾下鳞数较多及身体
环纹数量相对较少。新增标本形态数据和扩大的分布范围为今后刘氏链蛇的分类及种群研究提供了新的材料。
白林壮① 王剀② 康祖杰① 廖庆义① 刘美斯①
① 湖南壶瓶山国家级自然保护区管理局 常德 415319；
② Sam Noble Museum of Natural History, University of Oklahoma, Oklahoma USA 73072
... Kang et al. (2009) reported L. fasciatus as a new record of snake in Hunan Province based on specimens from Hupingshan Nature Reserve. Later Bai et al. (2018) reported L. liuchengchaoi from the very same nature reserve. Closer examination of the corresponding descriptions reveals that the referred specimens by Kang et al. (2009) and Bai et al. (2018) both possess a divided cloacal plate, which matches the diagnosis of L. liuchengchaoi but not L. fasciatus (Zhang et al., 2011b). ...
... Later Bai et al. (2018) reported L. liuchengchaoi from the very same nature reserve. Closer examination of the corresponding descriptions reveals that the referred specimens by Kang et al. (2009) and Bai et al. (2018) both possess a divided cloacal plate, which matches the diagnosis of L. liuchengchaoi but not L. fasciatus (Zhang et al., 2011b). In addition to the presence of a yellow collar-band on the neck in figures of both Kang et al. (2009) and Bai et al. (2018), which again contradict to the diagnosis of L. fasciatus but align with L. liuchengchaoi, it is clear that the previous record of L. fasciatus from Hunan Province by Kang et al. (2009) represent a misidentification of L. liuchengchaoi. ...
... Closer examination of the corresponding descriptions reveals that the referred specimens by Kang et al. (2009) and Bai et al. (2018) both possess a divided cloacal plate, which matches the diagnosis of L. liuchengchaoi but not L. fasciatus (Zhang et al., 2011b). In addition to the presence of a yellow collar-band on the neck in figures of both Kang et al. (2009) and Bai et al. (2018), which again contradict to the diagnosis of L. fasciatus but align with L. liuchengchaoi, it is clear that the previous record of L. fasciatus from Hunan Province by Kang et al. (2009) represent a misidentification of L. liuchengchaoi. Li et al. (2012) first recorded L. fasciatus from Guangdong Province, and the authors stated that the tail length of Guangdong specimens is 24.8%-25.8% of the total length in sub-adults, which are much longer than the true L. fasciatus (≤ 22.5%;Vogel & Luo, 2011;Table 4). ...
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
Article
Full-text available
  • Jan 2021
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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