中文摘要：

逗亚科棒花鱼属鱼类的分类与系统发育关系尚未解决.研究选择线粒体Cyt b基因和核基因RAG1、MLH3及MSH6作为分子标记, 重建了棒花鱼属鱼类的系统发育关系, 并结合形态证据对该属鱼类进行了分类厘定.结果表明： 棒花鱼与钝吻棒花鱼是单系种.拉林棒花鱼与辽宁棒花鱼是并系种, -起形成单系群.拉林棒花鱼＋辽宁棒花鱼-起嵌套在小鳔逗属鱼类内部, 钝吻棒花鱼嵌套在片唇逗属鱼类内部.拉林棒花鱼＋辽宁棒花鱼＋钝吻棒花鱼＋片唇逗属＋胡逗属＋小鳔逗属＋琵琶逗属鱼类组成单系群, 它们-起与棒花鱼形成姊妹群关系.可量性状与可数性状均不能区分拉林棒花鱼和辽宁棒花鱼.结合系统发育关系与形态证据,棒花鱼属鱼类的分类厘定如下： 棒花鱼属鱼类包括棒花鱼和平江棒花鱼（未取样）; 辽宁棒花鱼是拉林棒花鱼的同物异名, 后者的分类位置有待进一步校订; 钝吻棒花鱼校订为钝吻片唇逗.

英文摘要：

Taxonomy and phylogeny of the genus Abbottina fishes in the subfamily Gobioninae （Cypriniformes： Cyp-rinidae） remain unresolved. The current study utilized mitochondrial gene （cytochrome b） and nuclear loci （RAG1,MLH3 and MSH6） as molecular markers to reconstruct phylogenetic relationships of Abbottina fishes, and revised theirclassification by merging morphological evidence. The results showed that Abbottina rivularis and A. obtusirostriswere monophyletic species. Abbottina lalinensis and A. liaoningensis were paraphyletic species, which formed a mono-phyletic group. Abbottina lalinensis＋A. liaoningensis were nested within Microphysogobio fishes, and Abbottina ob-tusirostris was nested within Platysmacheilus fishes. Abbottina lalinensis＋A. liaoningensis＋A. obtusirostris＋Platys-macheilus＋Huigobio＋Microphysogobio＋Biwia fishes formed a monophyletic group, which were a sister taxon of Ab-bottina rivularis. Meristic and morphometric characters did not separate Abbottina lalinensis from A. liaoningensis. Themolecular evidence and morphological evidence demonstrated that the genus Abbottina fishes include Abbottina rivu-lari and A. binhi （un-sampling in this study）, and that Abbottina liaoningensis was a junior synonym of A. lalinensis,which needs further revision; and Abbottina obtusirostris was revised as Platysmacheilus obtusirostris.