I] 



STRUCTURAL AND SYSTEMATIC 



27 



commonly enclosed in sacs comparable to the sperm 

 sacs which frequently envelop the spermaries in other 



,TesZis 



Sperm sac. 



Sperm diwl..^ 

 Ovary. - -' 



Egg soLc ... 

 oviduct- '-- 



It 



12 



.sperm alothcca 

 14 



15 



17 



IS 



fttrriu^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 



