Testis - 



Oviduct 



Brain 



Excretory network 



Flame ce 



Ovary 



Digestive tract 



Transverse nerve 



Longitudina 

 nerve cord 

 Sperm duct 



Yolk gland 



Pharynx 

 Mouth 



Opening of 

 pharynx 



Copulatory sac 



Genital chamber 

 Genital pore 



Lateral branch of 

 digestive tract 



Digestive and nervous 

 systems 



Excretory and 

 reproductive systems 



w.}}m})}}}}}}))}m777m. 



Pharynx at rest in pharyngeal 

 chamber (side viev/) 





Pharynx protruded 

 through mouth 



135 



