158 



I. IJ1MA AND T. KABURA K I . 



with about 1 1 pairs of lateral branches ; each posterior trunk with about 

 1 8 of same. 



6 7 



Genital opening situated a short distance in front of the middle be- 

 tween mouth and posterior body-end. Atrium spacious, prolonged, with 

 irregularly folded wall, expanding forwards over penis. Testes numerous, 

 situated ventrally in body on both sides of anterior gut trunk, extending from 

 close behind ovaries posteriorly to insertion of pharynx. Penis pear-shaped, 

 saccular, with strongly muscular wall, entirely imbedded in parenchyma, 

 the internal cavity opening on the floor of the anterior part of atrium. 

 Vasa deferentia make a forward turn just before entering penis ; they open 

 separately into the cavity of the latter. Ovaries two, small, placed between 

 third and fourth pairs of gut branches. Oviducts open into the vestibular 

 part of atrium by a short common duct coming from above. Receptaculum 

 seminis situated close in front of penis. Vaginal canal slender, long, runs 

 over entire length of atrium and opens into the vestibular part of atrium 

 behind unpaired oviduct and just within genital pore. 



