I] 



STRUCTURAL AND SYSTEMATIC 27 



commonly enclosed in sacs comparable to the sperm 

 sacs which frequently envelop the spermaries in other 



.Testis 



Sperm sac. 



Sperm diwl.. 

 Ovary, - - 



Egg sac. 

 oviduct--- 



n 



12 



.Spermdtolheca 



14 

 15 



ie 



17 



is 



fltriu<nv 



Fig. 11. Organs of reproduction of Eudriloides durbanensis. 



earthworms and that these sacs not only contain the 

 mouths of the oviducts but are directly continuous 



