46 



PROTOZOOLOGY 

 b 



Fig. S. Diagrams of flagella. a, flagellum of Euglena (Biitschli) ; b, flagel- 

 lum of Trachelomonas (Plenge); c, ciliary flagellum w'ith one row of cilia; 

 d, a ciliary flagellum with two rows of cilia; e, whip-flagella of Polytoma 

 uvella; f, ciliary flagellum of Urceolus cyclostomus; g, the flagella of Monas 

 socialis (Vlk). 



(Fig. 8, c, d). The whip-flagellum occurs in Chlamydomonas, Poly- 

 toma uvella (e), Cercomonas crassicaiida, Trepomonas rotans, T. 

 agilis, Hexamita inflata, Urophagus rostratus, etc.; the ciliary 



