FLUKES 



2 95 



do not have cilia on ectoderm. Very characteristic of them is the 

 possession of suckers by which they hold on to the skin or alimentary 

 system of their host. 



3*3 



They are divided into two orders: i. the Monogenea in which the egg gives rise 

 to a larva which later becomes the adult and 2. the Digenea. It is to this latter that 

 the flukes parasitic in man belong. This order is characterized by the fact that the 

 larva becomes parasitic in some second animal and then gives rise to a second gen- 

 eration of larvae which latter develop into adults. 



