50 SYSTEMATIC ZOOLOGY 



Ciliata, which they kill and absorb through their tentacles. 

 The young individuals are generally formed by budding, and 

 unlike the adult are well ciliated and swim about freely 

 ( Fig. 29). Eventually they settle down on some object, become 

 attached, the cilia disappear, and the tentacles of the adult 

 develop. Representatives of this order are found in fresh and 

 in salt water. 



