THE VASCULAR APPARATUS. 437 



times in such abundance that the sides exhibit green streaks. This 

 was specially striking in the case of two Tcenice, which one of my 

 Eussian pupils, now Professor P., acquired five years ago in St. Peters- 

 burg, and in which all the proglottides (twelve of which were voided 

 daily) were provided with a green border. 



As to the rest of the organization, there is little, except in regard 

 to the sexual organs, which calls for detailed discussion. We have 

 already mentioned the specially powerful musculature and the very 

 energetic movements. As to the course and arrangement of the 

 fibres, we need only remind the reader that T. saginata was the 

 example we chose as a general type in our detailed description. 



FIG. 248. Head of Cysticercus Teenies saginata?, with frontal sucker and 

 vascular ring. ( x 30. ) 



I cannot exactly confirm the results at which Kiichenmeister 1 has 

 arrived in regard to the vascular apparatus of his Tcenia mediocanellata, 

 according to which it is much simpler in the head than is the case in 

 T. solium. It is indeed true that the ring round the rostellum is, as 

 one would expect, but narrow, yet its structure and arrangement are, 

 for all that, quite normal. Similarly, the four longitudinal canals 

 which form the ring are different only in this respect, that the 

 number and development of the branches are in fact greater than 



1 "Cestoden," &c., p. 110. 



