196 ELECTRON-MICROSCOPIC STRUCTURE OF PROTOZOA 



Plate XXII 



Fig. 80. Section of Trichodinopsis paradoxa, cut perpendicular to 

 plane of basal disc. Very dense skeletal elements at right; bases of 

 cilia of locomotor fringe at left. Fibers assumed to be contractile 

 interconnect other organelles. X 10,000. From Faure-Fremiet, 

 Rouiller and Gauchery, 1956a. 



Fig. 81. Superficial section of trochal band of Ophrydium versatile 



migrant, showing oblique rows of kinetosomes, with attached fibrils, 



cut at successively deeper levels from left to right. X 39,000. From 



Rouiller and Faure-Fremiet, 1958b. 



