Spermathecal pores are usually intersegmental . 受精囊孔经常是位于节间。
2.
Usually earthworms have two or more pairs of spermathecal pores . 蚯蚓常常有两对或多对受精囊孔。
3.
The secretory product is alkalophilic and enters the spermathecal cavity through secretory tubules . it maybe create the very microenvironment for preserving spermatozoa and enabling them to develop 分泌物经分泌小管进入囊腔,为嗜碱性物质,可能对为保存精子和保证精子进一步完成发育提供了微环境。