| 马舜,石胜超,江建平.2023.湖南省发现云开脊蛇兼记棕脊蛇新地模标本.动物学杂志,58(5):760-771. |
| 湖南省发现云开脊蛇兼记棕脊蛇新地模标本 |
| Achalinus yunkaiensis, a New Provincial Record of Hunan Province, China, with Description of an Additional Topotype of A. rufescens |
| 投稿时间：2023-01-05 |
| DOI：10.13859/j.cjz.202305010 |
| 中文关键词: 云开脊蛇 湖南省新记录种 棕脊蛇 地模标本 分类厘定 |
| 英文关键词:Achalinus yunkaiensis New record in Hunan Achalinus rufescens New topotype Taxonomic revision |
| 基金项目:国家重点研发项目(No. 2022YFF1301401)； |
|
| 摘要点击次数: 47 |
| 全文下载次数: 607 |
| 中文摘要: |
| 云开脊蛇(Achalinus yunkaiensis)之前仅在广东和广西有分布报道。本文基于形态比较及线粒体COI基因序列分子系统关系分析结果，确定采集于湖南省新宁县的1号雌性脊蛇标本(CIB 119041)为云开脊蛇，为湖南省新记录种。该标本鼻间鳞沟约等于前额鳞沟，上颔齿24枚；背鳞通身23行，腹鳞150枚，尾下鳞55枚；尾长与体长之比为0.203。至此共有4种脊蛇分布于湖南省。此外，本文还报道了棕脊蛇(A. rufescens)1号雄性地模标本(CIB 119042)，该标本鼻间鳞沟长于前额鳞沟；背鳞通身23行，腹鳞153枚，尾下鳞62枚；尾长与体长之比0.201。分子系统发育结果显示，棕脊蛇种组各支系的系统地位还需进一步研究厘定。 |
| 英文摘要: |
| [Objectives] The genus Achalinus is a group of snakes with relatively deficient data. This research provides additional data on this seldom known genus, particularly of the recently described species A. yunkaiensis and the seldom known species A. rufescens. [Methods] The specimen newly reported in this research was identified based on morphological characters and phylogenetic analysis based on cytochrome c oxidase subunit 1 (COI). [Results] This study revealed that a specimen of Achalinus snake, CIB 119041, from Xinning County, Hunan Province was A. yunkaiensis, which was a new provincial record of Hunan (Table 1 & 2; Fig. 1 & 2). The specimen was a female with the following morphological characters:(1) tail length 52 mm, total length 256 mm, tail length/total length 0.203; (2) length of suture between internasals subequal to the suture between prefrontals; (3) supralabials 6, the 4th﹣5th touch the eye; (4) infralabials 6, the first 3 touch the first pair of chin shields; (5) ventral scales 150, subcaudal pairs 55, anal entire; (6) temporals 2 + 2 + 3, and the two anterior temporals touch the eye; (7) maxillary teeth 24 (Table 3 & Fig. 3). In addition, a new male topotype of A. rufescens, CIB 119042, was reported from Hongkong with the following characters:(1) tail length 84 mm, total length 418 mm, tail length/total length 0.201; (2) length of suture between internasals longer than the suture between prefrontals; (3) supralabials 6, the 4th﹣5th touch the eye; (4) infralabials 5, the first 3 touch the first pair of chin shields; (5) ventral scales 153, subcaudal pairs 62, anal entire; (6) temporals 2 + 2 + 3, and the anterior upper one touch the eye (Table 4, Fig. 4). [Conclusions] This study indicated that A. yunkaiensis represents a new reptile record of Hunan Province, which brought the total numberof Achalinus species in Hunan Province to four. Furthermore, the results revealed that further taxonomic revisions of A. rufescens complex are needed. |
| 附件 |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
