STRUCTURE OF LIVER FLUKE 



217 



Start with, there are no sense organs in the adult. 

 The body cavity is not represented unless it be by minute 



P- 



c.s — ^ 







-<^' t^ ^^^-^ 



Fig. 117. — Reproductive organs of liver fluke.— After Sommer. 



ov. Ovary (dark). 

 ut. Uterus. 

 c.s. Cirrus sac. 



/. Female aperture. 



s.v. Seminal vesicle. 



y.gl. Diffuse yolk glands. 



sh.g. Shell gland. 



v.d. Vas deferens. 



T. Testes (anterior). 



p. Penis. 

 m. Mouth. 

 g. Anterior lobes of gut. 



intercellular spaces in the body parenchyma. Into these 

 there open the internal ciliated ends of much-branched 

 excretory tubes (see Figs. 114 and ii6), which unite 



