Cysf wall 



Eggs develop into hydatid cysts in 

 liver and other organs 



intestine 



Scolex with hooks 

 and suckers 



Carnivorous mammals (dog) eat 

 tissues containing hydatid cysts. 

 Adult tapeworms develop in 



/ 



Eggs passed in feces 

 are accidentally eaten 

 by various herbivorous 

 mammals (sheep, swine) 

 and man 



Mature proglottid 



Adult in intestine of 

 carnivorous mammals 



Raw or partially cooked infected 

 fish eaten by man and other 

 mammals 



Copepods eaten by fish 



Eggs passed 

 feces 



Eggs hatch into ciliated 

 larvae in water 



Co'pepod eats 

 •.; larvae 



Larva from fish muscU 



146 



Larva from 

 copepod 



Adult in intestine of man and 

 other mammals 



