146 



BIOLOGY OF THE PROTOZOA 



(Fig. 54, p. 105), and in some they appear to come from the ridges 

 themselves. 



Rhizoplasts or endoplasmic prolongations from the basal bodies, 

 are comparatively rare but occur in some cases as in Didinium 



B 



Fig. 75. — Types of Ciliata. A, Monodinimn balbianii; B, Cyclotrichiuni sphcericum; 

 C, Dinophrya lieherkuhni; D, Askenasia elegans. (After Faure-Fremiet.) 



nasvtvvi (Fig. 89, p. ISO). Coordinating fibrils have been described 

 in a few types {Euplotes, D iplodinium , Balantidivm coli and B. 



