792 



ON THE CH^TOSOMATID^, 



formed of a little group of dark granular cells, which projects 

 into a wide, thin-walled chamber formed by a swelling of the 

 oesophagus in the neck (Fig. 30, n.o.). This swelling is supported 



cod. 



Figs. 34-35.— C/i. hasweHi. 

 rig.34._L.S. through trunk of a j'oung specimen in middle region, show- 

 ing rudiment of a genital system igen.); ( x 950). 

 Fig.35.— T.S. through trunk anterior to genital system; ( x 950). 



by inward projections of the body-wall. Behind it, the lumen 

 of the oesophagus is narrow throughout its length, and the wall 



