PROTOPHYTA 69 



Reproduction is by longitudinal division, sometimes occurring in 

 the free-swimming state. Fertilization processes have been re- 



Fig. 36— PERANEMA TRICHOPHORA 



A flagellate which creeps along slowly with its flagellum 

 extending straight ahead, the tip only in vibration 



From a photomicrograph by the author 

 Magnification, 800 



ported for Euglena sanguinea, but the observations thus far have 

 not been confirmed. 



