受精囊孔

  • 网络spermathecal pores;spermethecal orifice;Openings of the Seminal Receptacles
受精囊孔受精囊孔
  1. 蚯蚓常常有两对或多对受精囊孔。

    Usually earthworms have two or more pairs of spermathecal pores .