TVENIA 63 



which can be readily removed. In other situations the 

 cysticerci may be the cause of serious disease, as they 

 may be found even in large numbers in the brain, eye, 

 and heart. It is rarely found in the liver. In the brain the 

 cysticerci usually develop in the membranes, and give rise 

 to epileptiform attacks, which are often fatal. In the eye 

 they may be beneath the retina, in the vitreous, or in 

 the anterior chamber, and lead to the destruction of the 

 organ (fig. 29). In the heart and lungs they may lead to 

 functional disturbance. 



Fie. 29. Cysticercus celluloses in the anterior chamber. (After Leuckart.) 



The adult form can be recognized by the passage of 

 mature segments. These are readily distinguishable from 

 the ripe proglottides of T. saginata. If they are compressed 

 between two slides and held up against the light it will be 

 seen that the lateral pouches of the uterus are not very 

 numerous (fig. 34). The proglottis is smaller and less 

 actively motile than that of T. saginata. The eggs, or 

 rather the oncospheres, may be found in the faeces when 

 no segments have been met with. 



The cysticercus is recognized in man by the shape of 

 the hooklets, though in the human cases they are often 

 imperfect or irregular. The cysticercus of this tapeworm 

 is known as the Cysticercus celluloses. 



T. saginata is the most widely distributed of the 

 human tapeworms, and is larger than T. solium, it may 

 measure from 4 to 8 metres, and has 1,200 proglottides or 

 more. The mature proglottis measures on the average 

 16 to 20 mm., by about 3*5 mm. in breadth. The head 



