Abstract：
The hemicultrine fishes are a group of small-sized cyprinids, widely distributed but endemic to East Asian rivers and lakes. Till now, the taxonomic boundaries and relationships within this group remain poorly explored. In the present study, we study the phylogeny of this group, providing suggestions for classification of the hemicultrine group. Using two mitochondrial and three nuclear genes, and samples representing all genera, our results showed that the group consists of seven major lineages, of which four (Hemiculterella, Hainania, Pseudolaubuca, and Anabarilius) were monophyletic and three (Hemiculter, Toxabramis, and Pseudohemiculter) were not. Based on the phylogenetic tree, we redefined the genera. We revive the genus Siniichthys, which has three species, Siniichthys bleekeri, Siniichthys lucidus, and S. varpachovskii, that were previously treated as members of the genus Hemiculter but showed distant relationships to the genus Hemiculter in our phylogenetic tree. With the new results, a diagnostic key for clades of the hemicultrine group is provided. Furthermore, we provide more detailed information on diagnostic features of the recently described species Hemiculter yungaoi (Vasil\'eva et al., 2022). This work will facilitate future systematic studies, pave the way for evolutionary studies, and provide valuable information for the urgent conservation of hemicultrine fishes.
摘要：
血液类鱼类是一群小型的鱼类，广泛分布，但特有的东亚河流和湖泊。到现在为止,该组中的分类边界和关系仍未得到充分探索。在本研究中,我们研究这个群体的系统发育，为血液类分类提供建议。使用两个线粒体和三个核基因，和代表所有属的样本，我们的结果表明，该群体由七个主要谱系组成，其中四个(Hemiculterlla，Hainania,Pseudolaubuca,和Anabarilius)是单系的，三个(Hemiculter，Toxabramis,和伪血者）不是。根据系统发育树，我们重新定义了属。我们复兴了Siniichthys属，有三个物种，Siniichthysbleekeri,Siniichthyslucidus,和S.varpachovskii,以前被视为Hemiculter属的成员，但在我们的系统发育树中与Hemiculter属有很远的关系。有了新的结果,提供了一种诊断键，用于血球组的进化枝。此外，我们提供了有关最近描述的Hemiculteryungaoi物种的诊断特征的更详细信息（Vasil\'evaetal。,2022年）。这项工作将有助于今后的系统研究，为进化研究铺平道路，并为血液类鱼类的紧急保护提供有价值的信息。
