PL 18. 



b c 



Chloramoeba heteromorpha 



Merotricha 

 bacillata 



n 



Vacuolaria virescens 



Vacuo- 

 laria 

 flagellata 



Chlorosaccus fluidus 



a b 



Rhapidomonas semen 



^^~\CT^ 



(X> 







Thaumatomastix setigera 



III. HETEROCONTJE 1. Chloromonadaceae 



