74 FLATWOUMS, liOUNDVVORMS, AND KOTIFERS 



Branch VI — Trochelminthes. 

 Class — Rotifcra. 



Order — Bdelloida. 

 Type of Order. 



Rotifer uprrics — Wheel animalcule 

 Branch VII — Mollascoidea. 

 Class — Brachiopoda. 

 Order — Articulata. 

 Types of Order. 



Various species. 



