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(Trematoda :Digenea) 



(Helminthes) 



(Crustacea) 



(Cestoda) 



(Trematoda :Digenea) 

 (Cestoda) 



(Crustacea) 

 (Crustacea) 

 (Crustacea) 



(Protozoa :Sporozoa) 



(Protozoa :Sporozoa) 

 (Protozoa) 



(Crustacea) 



59 



