PHYLUM PROTOZOA 



71 



Hrfrromita, e.g. (Fig. 57) the anterior flagellum (Jl. 1) only is 

 use. I in progression, the second or ventral flagellum (fl. 2) is trailed 



7.Tetram\ta 

 ff.Dallingeria 



8.oiK< 



9.Cryf>romooa S 10 .Diblomirc 



ft 



il.Dinobryon 12. Sy ncry p t a 13. Anthobhysa H.Rhibidodendron 



Flo. 52. — Various forms of Flagellata. — In 2, flagellate (a) and amoeboid (b) phases are 

 shown ; in 5, flagellate (a) and helio^oan (b) phases ; in 8 are shown two stages in the in- 

 gestion of a food-particle (/.); clr,\ chromatophores ; c. vac. contractile vacuole ; /. food par- 

 ticle g. gullet; n». nucleus ; I. lorica ; p. protoplasm ; per. peristome ; v.i. vacuole of ingestion. 

 (Mostly from BUtschli's Protozoa, after various authors.) 



behind when the animal is swimming freely, or is used to anchor 

 it to various solid bodies. In some (Trypanosomes, Fig. 53) the 



