LIFE-HISTORY OF LIVER FLUKE 



221 



RtDlAE 



5POROCY5T 



Fig. 119. — Diagram of life-cycle of liver fluke. 



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

 quadrant, free-swimming larva with eye-spots {e.). Lower quadrant, 

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

 within redia ; g., gut in redia ; C, cercariae in redia. Left quadrant, 

 free cercaria ; g., gut ; s., sucker ; t., tail. 



