I 12 



PROTOZOA 



ll.Oinobryon 12.Sy ncry jj^a 13. Anl'hotihysoi 14.Rhit>icladendron 



FiQ. 87.— Various forms of Flagellata. 2, 6-8, 10, 13, 14, Protomastigaceae ; 11, 12, 

 Chrysomonadaceae ; 9, Cryptomonadaoeae ; 1, 3, Euglenaceae ; 4, Pantostomata : note 

 branched stalk in 13 ; branched tubular theca in 14 ; distinct thecae in 11 ; stalk 

 and theca in 10. In 2, flagellate [a) and amoeboid (&) phases are sliown ; in 5, 

 flagellate (a) and Heliozoan (6) phases ^ ; in 8 are shown two stages in the ingestion 

 of a food particle (/) ; chr, plastoids ; c.vac, contractile vacuole ; /, food particle ; 

 g, gullet ; I, theca ; nu, nucleus ; p, protoplasm ; per, peristome ; v.i, vacuole of 

 ingestion. (From Parker and Haswell, mostly from Btitschli's Protozoa. ) 



^ Dimorpha is now referred to Heliozoa (p. 70). 



