3.Astasiof>is 



S.Oikomonas (?) 



ll.Dinobryon 12. Sy ncr y p r a 13. Anhhojjhysa H.Rhi^idodendron 



FIG. 13. Various forms of Mastigophora. In 2, flagellate (a) and amoeboid (b) 

 phases are shown; in j, flagellate (a) and heliozoan () phases; in 8 are shown 

 two stages in the ingestion of a food particle (f ) ; chr, chromatophores; 

 c. vac, contractile vacuole; f, food particle ; g, gullet; nu, nucleus; /, lorica; 

 /, protoplasm; per, peristome; v. i, vacuole of ingestion. (Mostly from Biit- 

 schli's Protozoa, after various authors.) 



37 



