New information on the occurrence of Helobdella europaea Kutschera, 1987 was obtained. Four individuals assigned to this species were found in a private aquarium in Kharkiv. Helobdella europaea has not been recorded for Ukraine so far. The taxonomic identity of the leeches was confirmed by both a morphological examination and a molecular phylogenetic analysis based on all available cox1 sequences of Helobdella leeches. Helobdella europaea was found to have extremely low genetic diversity, which has been probably caused by the founder effect. The variability of the coloration pattern of H. europaea was documented and discussed in the light of its potential usefulness for identification. The species can invade local freshwater ecosystems as has been already happened elsewhere.

1987年获得了有关欧洲油菜（Helobdella europaea Kutschera）发生的新信息。在哈尔科夫的一个私人水族馆中发现了四个属于该物种的个体。到目前为止，尚未在乌克兰记录到欧洲通心粉。水He的分类学身份通过形态学检查和分子系统发育分析（基于所有可用的Helobdella水ches的cox1序列）进行了确认。发现欧洲绣球菌的遗传多样性极低，这可能是由创始人效应引起的。的着色模式的变化H.油橄榄根据其对识别的潜在有用性进行了记录和讨论。该物种可以入侵当地的淡水生态系统，就像其他地方已经发生的那样。