LIVER FLUKE. 



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FIG. 86. Life history of liver fluke. After Thomas. 



i. Developing embryo in egg -case; 2. free - swimming ciliated embryo; 

 3. sporocyst ; 30.. Shell of Linintfus truncatulus \ 4. division of sporo- 

 cyst ; 5. sporocyst with rediae forming within it ; 6. redia with more 

 rediae forming within it ; 7. tailed cercaria ; 8. young fluke. 



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