云南鱼类三新纪录及驮娘江鱼类的区系存在度分析

2005年8月，对云南富宁县驮娘江流域的鱼类进行了考察，采集到鱼类标本38种，发现云南鱼类3新记录：胡鮈（Huigobio chenhsienensiss Fang）、宽头盘鮈 （Discogobio laticeps Chu, Cui ＆ Zhou）、圆体爬岩鳅 （Beaufortia cyclica Chen）。结合历史记录和中国科学院昆明动物研究所鱼类标本馆馆藏的驮娘江流域的鱼类标本，对驮娘江鱼类的目、科、属三个级别进行区系存在度分析。区系存在度分析显示：一些世界性分布的科和属，在驮娘江分布的种类并不很多，相反，一些具有地方性分布和小的科和属，其区系存在度相对较大。长臀鮠科（Cranoglanididae）为中国华南区－越南特有的科，其区系存在度为100%。结鱼属（Parator）和红鲌属（Erythroculter）为单种属，区系存在度为100%，结鱼属是中国特有属，主要分布在珠江水系，红鲌属鱼类主要分布在亚洲南部。这些地方性分布的小科属更能反映本地区的鱼类区系特征，即亚洲亚热带淡水鱼类区系。

Three New Records of Fish in Yunnan and Analysis of the Value of Faunal Presence of Fish in the Tuoniang River

In Aug 2005, scientists of the Kunming Institute of Zoology (KIZ) took a survey of the fish in Tuoniang River, Funing County, Yunnan, collecting 38 species of fish. Three species, Huigobio chenhsienensiss Fang, Discogobio laticeps Chu, Cui & Zhou and Beaufortia cyclica Chen, are new records in Yunnan Province. According to the historical record and the Tuoniang River fish specimens preserved in the collection room of KIZ, the author tried to assess the Value of Faunal Presence (VFP) of fish in the Tuoniang River at the respective levels of Order, Family and Genus. Analyzing the VFP is one key to revealing the geographic characteristics of some faunas. The VFP analyses indicated that some worldwide-distributed families and genera had a small quota in the Tuoniang River. On the contrary, the VFP of some endemic families and genera turned out to be relatively high. Cranoglanididae is an endemic family in South China-Vietnam, with a VFP of 100%. Parator and Erythroculter have one species, with a VFP of 100%. Parator is endemic to China; it is distributed in the Pearl River, while Erythroculter is endemic to South Asia. These endemically distributed families and genera can better represent the characteristics of fish fauna in the Tuoniang River, which belongs to the Asian Subtropical Freshwater Fish Fauna.