OPHIDIAN TAPEWORMS, 



163 



cease rather rapidly, leaving an obvious discontinuity. As I 

 have pointed out in Ophidotcenia naice, there is in the present 

 species no question of an artificial rupture of the cuticle due to 



Text-fig. 35. 

 at. 



The upper figure represents an incompletely mature proglottid of 

 0'phidot(snia russelli. 



The lower figure is of the anterior uterine pore more highlj' magnified. 



ov. Ovary, t. Testes, ui. Uterus, the external orifices of which are represented 

 black. ^ & $ . Male and female terminal organs. 



an accident in the processes of section cutting. The cuticle is 

 seen to become thinned to a point on both sides of such an orifice 



