EXPLANATION OF PLATE 



Fig. 1. Enlarged drawing of head of Taenia twitchelU showing suckers and 

 hoolvs. (Press preparation.) 



2. Large hoolis («) and small hooks (b) (enlarged). 



3. Showing the mode of brandling of Taenia tuHtchelU. The stalk (z) 



embedded in the lung tissue bifurcates into two branches, one of which 

 (a?) bears a developed cysticercus and two buds (c), and the other 

 iy) gives off a number of cysticerci. Two cysticerci (a) have a com- 

 mon peduncle by which they are attaclied to the main branch and an 

 immature bud (c) at the base. Two cysticerci (ft) each originate 

 independently from the lung tissue and are not connected to each 

 other or to the colony of cysticerci (enlarged). 

 4 



O 



