对似鮈属鱼类进行了形态测量和主成分分析。结果表明区别似鮈和桂林似鮈的重要特征胸鳍末端是否超过腹鳍起点与尾柄高同尾柄长的比例相互之间有一定的相关性,但是在研究的样本中没有截然的界限,而是有较大的重叠,难以区分。其他的特征则没有相关性。从地理分布看,同一地点的样本在上述特征上有一定的区别,但是没有发现明显的南北或东西地理变化的规律。因此似鮈属鱼类应该只划分为一个种,桂林似鮈为似鮈的同物异名。 Morphological measurements and principal component analysis were performed on the fish of the genus Suaeda. The results showed that the important characteristics of the difference between the like and Guilin, whether the end of the pectoral fin over the pelvic fin tail point and caudal peduncle with the same ratio of the length of cauda equina, but there is no clear boundary in the study sample, but Larger overlap, difficult to distinguish. Other features are not relevant. From the geographical distribution, the samples of the same place have some differences in the above characteristics, but no obvious change pattern of north-south or east-west geology has been found. Therefore, the genus of fish should be divided into only one kind of species, Guilin, like the same name as the same name synonyms.