PL 22. 



a 



Zooxanthella species 



-J- 



'." S 



a 

 Cyanomonas americana 



d 



Rhodomonas baltica 



a 



Cryptomonas enosa 



Chilomonas 

 Paramaecium 



Botryomonas natans 



IV. CRYPTOMONADINE^ 



