1.58 PARASITES OF THE DOMESTIC ANIMALS 



Fig. 83. — Reproductive organs of liver fluke: f, female aperature; s. v., seminal \'esicle 

 y. g. 1., diffuse yolk glands; sh. g., shell gland; v. d., vas deferens; T., testes; ov, ovary 

 (dark); ut, uterus; c. s., cirrus sac; p, penis; m, mouth; g, anterior lobes of gut (after 

 Thomson, from Sommer). 



