【摘要】 在浈水上游北江源地亚历河采集到鱼类 4 0种和亚种 ,分隶于 5目 1 3科 31属 .以骨鳔类为主 ,其中鲤形目种类占 6 7.5% ,鲤科占鲤形目的 70 .4 9% ,既有老第三纪原始类群的后裔类 ,又有南亚暖水性鱼类 .东陂拟腹吸鳅 ,侧条光唇鱼 ,宽鳍等适应山溪急流生活的生态类群占明显优势 ,浈水源地的鱼类区系东洋区的特征比较明显 .根据鱼巴亚科占鲤科类 31 .58% ,以及东洋区鱼类占全部种类的 36 .2 4 % ,而鳊、鲴、鲢、雅罗鱼五亚科种类仅占 2 6 .33%等特征 ,认为将南岭作为全北区与东洋区的分界线更符合客观事实更多还原

【Abstract】 Fourty species(sub-species) fishes which belongto 5 orders, 13 families and 31 jenus are collected from Beijiang River on upper reaches of Zhen River. Cypriniforms accounts for 67.5% ,Cyprinidae, 70.49 in Cypriniforms. Characters of Oriental Region in the fish fauna of Yali river are reported. Based on the date collected from the compositions fishes in the area, it is proved that the Davidingline of Oriental region and Holaricfic region should be in Nanling mountains range not in Qinling mountain range.更多还原