xu list of illustrations. 

 Section of Sponge 



FAOB 



386 

 391 



Thkee-sided Eughbna 



swan-neok and its divisions 39 * 



Paramceoium 



coleps and chilomonas '• -399 



VOETIOELL^l 



. 407 



ACINETA 



VAOTNICO 



EUPLOTES * 16 



VAOTNICOLA ° 



