l.FIoscularia 2. Srephanoceros '3.Melicerra 







/,!:,'. 



4.Melicerra S.Philodina 6. A s p I a nchna 



8. Polyarl-hra 



9. N o r e us 



7-Hydarina lO.NofhoIca 



FIG. 274. Typical forms of Rotifera : 9 and 10 show the lorica only. a. anus ; c 1 . c' 2 . ciliai .\ 

 cii'clets ; int. intestine ; in. muscle : ph. pharynx ; st. stomach. (After Hudson and Qosse.) 



