472 



BIOLOGY OF THE PROTOZOA 



Ww 



Fig. 191.— Types of Ciliata. A, Choenia teres, after Calkins; B, Cyclotrichium 

 ovatum, after Faure-Fremiet; C, Enchelys pupa, after Biltschli; D, Holophrya gar- 

 gamellae, after Faure-Fremiet; E, Holophrya discolor, and F, Opisthodon mnemiensis, 

 after Butsehli. 



