LIVER FLUKX* 



189 



REDIAE 



5POOCY$T 



FIG. 98. Diagram of life cycle of liver fluke. 



Upper quadrant, adult in sheep ; ph., pharynx ; s., sucker ; g., gut. Right 

 quadrant, free - swimming larva with eye -spots (e\ Lower quadrant, 

 sporocyst and redise in water-snail ; R , redia within sporocyst or within 

 reclia ; g. , gut in redia; C., cercariae in redia. Left quadrant, free cer- 

 caria ; g-., gut ; s., sucker ; /., tail. 



