鳅鮀鱼类鳔囊结构及系统发育研究(鲤形目:鲤科)

ON THE ANATOMY AND PHYLOGENY OF THE GOBIOBOTINE FISHES (CYFRINIFORMES: CYPRINIDAE)

本文应用分支系统学原理对鳅(鱼它)鱼类的鳔囊、鳔及相关结构进行了特征分圻,并以(鱼句)亚科作为外类群。解剖结果表明,鳅(鱼它)鱼类的鳔分四种类型;分析结果进一步证实鳅(鱼它)鱼类是一个单源群,作为一亚科可分为异鳔鳅(鱼它)属和鳅(鱼它)属,后者又分为原鳅(鱼它)和鳅(鱼它)二个亚属。

The gobiobotine fishes is a kind of small bottom-dweller in the running water. It is an endemic group in the eastern Asia. Ten species of the gobiobotine fishes and 7 species of go-bioine fishes were cleared and stained for osteological study. Variation of air bladder capsule and other osteological characters were analyzed to elucidate the relationships of these fishes. The result of character analysis indicates that the gobiobotine fishes is a monophyletic group, and can be divided into two major phyletic lines. The first line includes genus Xenophysogobio (status new) which contains two species only, while the second includes genus Gobiobotia, which contains 2 subgenera, Progobiobotia and Gobiobatia (nominate subgen.)