云南省发现弄岗狭口蛙  

First Record of the Kaloula nonggangensis from Yunnan Province

作　　者：魏平凡 宋艳芳 袁智勇[1] 吴军 WEI Ping-Fan;SONG Yan-Fang;YUAN Zhi-Yong;WU Jun(Key Laboratory for Conserving Wildlife with Small Populations in Yunnan,Southwest Forestry University,Kunming 650224;Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection of China,Nanjing 210042,China)

机构地区：[1]西南林业大学,云南省高校极小种群野生动物保育重点实验室,昆明650224 [2]生态环境部南京环境科学研究所,南京210042

出　　处：《动物学杂志》2020年第1期53-57,共5页Chinese Journal of Zoology

基　　金：生态环境部生物多样性调查、观测和评估项目(2019-2023年)。

摘　　要：2018年6月,在位于云南省文山壮族苗族自治州的文山国家级自然保护区(23°21′41″N,104°50′26″E,海拔1 300 m)采集到无尾目(Anura)姬蛙科(Microhylidae)狭口蛙属(Kaloula)标本3号,包括雄性成体标本1号和雌性成体标本2号,并对相应形态特征进行了测量,雄性头体长为35.79mm,雌性头体长为48.01 mm和42.78 mm。根据形态特征比较发现,该种群的标本皮肤光滑,背部呈橄榄绿色,有不规则的深绿色斑纹,指端平切且具两排小乳突,雄性胸部有小柠檬黄色斑点,雄性全蹼,雌性为1/3蹼,与采集自弄岗国家级自然保护区的弄岗狭口蛙(K. nonggangensis)地模标本(海拔186 m)的形态鉴定特征基本一致,仅体色和体型大小稍有差异。基于16S rRNA基因片段进行系统发育分析表明,这些标本与弄岗狭口蛙模式产地标本聚在一起,共享同一单倍型。可以确定所采集的3号标本均为弄岗狭口蛙,为云南省两栖纲分布新记录物种。新发现的种群分布于中高海拔处,较地模标本的低海拔分布记录有较大的拓展。该物种的发现说明,云南东南部与广西西南部的喀斯特地区具有相似的物种组成,对该区域将来的生物地理学研究具有重要意义。During the fieldworks in June 2018, an adult male and two adult females(Fig. 1 and Table 1) were collected from Wenshan National Nature Reserve(23°21′41″ N, 104°50′26″ E, altitude 1 300 m) near the town of Fadou, Xichou County, Yunnan Province, China. Morphological measurements were taken for the three specimens. They have smooth olive dorsum with irregular dark-green marks and brown spots;tips of the fingers widely dilated and truncated;males with nearly entire webbed while female one third wedd;males with two side protuberant osseous tubercles on the tips of fingers while female absent;the chest of males beige with small lemon-colored spots, while the chest of female absent of spots with uniformly milk white. All major morphometric characters of these specimens were found to match with the type specimen of Kaloula nonggangensis. Phylogenetic analysis based on 16 S rRNA gene fragments showed that these specimens clustered with K. nonggangensis from the type locality(Fig. 2) and shared a haplotype. Therefore, we report K. nonggangensis as a new member of amphibian fauna of Yunnan. Morphological variation and additional natural history data of this species were described. This new record found suggestion similar animal fauna were in the karst areas from southeastern Yunnan and west eastern Guangxi.

关 键 词：姬蛙科 文山 喀斯特 

分 类 号：Q959[生物学—动物学]