CILIATE FIBRILLAR SYSTEMS 



231 



{lb. f. 



Figure 81. Chlamydodon sp. (MacDougall, 1928.) 



A. c. myon. — circular myoneme and traversing fibrils 



B. fib. f.- — fibrillar fan c. fib. — cross fibril 



b. gr. — basal granule 



Strand which appears to be made up of fibrils. This strand follows the 

 posterior margin of the gullet and frays out in the endoplasm near the 

 left side of the organism. From the outer end of the motor'ium originate 

 two fibrils: one joins the basal elements of the posterior brush, while 

 the other is the fiber of the dorsal peristomal row of cilia. The latter pro- 

 ceeds anteriorly to join the anterior fibril and thus to the transverse fibril 

 mentioned above. 



