SEGMENTED WORMS— THE ANNELIDS 



179 



Courtesy Southwestern Biological Supply Co. 

 Fig. 12.6. Leeches. Large specimens from China extended to their length. 



enough to allow them to live out of the water. A person walking 

 through jungle regions where these abound must be careful to pick 

 these leeches off when they become attached to his skin or he will lose 

 an appreciable quantity of blood. There are even some cases where 



