SCOLIiX OF A CESTODE. 



77 



tissue which form the walls of the bothria do not unite at their 

 attachment to the axis, but leave a space between their inner 

 terminations. In D.fimbriata, on the other hand, the two walls 



Text-figure 2. 



Transverse sections through scolex of (left-hand figure) Bidliiersia Jimbriata 

 and (right-hand figure) D. expansa. 



w, walls of bothria ; e, junction of these with the axis of the scolex. 



of the bothrium practicall}- meet at their insertion (text-fig. 2, e). 

 Thus, in both ti'ansverse and horizontal sections the axis assumes 



