I.Flos cularia 2. Srephan o ceros 3.Melicerl'a 



\-/}k 



4.Melicerra 



5 . P h i I o d i n a 



e.Asplanchna 



Fio. 269.— Typical forms of Rotifera :— 9 and 10 show the lorioa only. o. anus ; ci. A ciliary 

 . circlets ; int. intestine ; m. muscle ; ph. pharynx. (After Hudson and Gosse.) 



