The results demonstrated that the testis tissue construction of the Polycelis planarians was very analogous with one of seminiferous tubule of testis of mammalia, but some differences still existed.

• 结果表明：在光学显微镜下，多目涡虫精巢的组织结构与哺乳类睾丸中曲细精管的结构类似，但也有一些差别。