234 



CILIATE FIBRILLAR SYSTEMS 



gul. fib. 



ph. r. fib. 

 fib. b. 



in. b. fib. 

 d. f. p. b. 



-— i. 



p. o. c. 

 ph. c. n 



i. n. fib. 

 v.f.p.b. 



d. i.c.r. 



Z 



3 



p. b. c. f 

 p. o. c. fl. 



Figure 82. Conchophthirus magna. (Kidder, 1934.) Diagram of the fibrillar system 

 of peristomal region. 



d. f. p. b. — dorsal fibers of peristomal basket d. 1. c. r. — dorsal lip ciliary row 



fib. b. — fibrillar bundle gul. fib. — gullet fibril i. n. fib. — inner net fibril 



in. b. fib. — inner basket fibril 1, 2, 3, 4 — rows of body cilia 



p. b. c. f . — posterior basket connecting fibril p. o. c. f. — pre-oral connecting fibril 



p. o. c. f\ — post-oral connecting fibril ph. c. r. — pharyngeal ciliary row 



ph. r. fib. — pharyngeal ring fibril v. f. p. b. — ventral fibril of peristomal basket 



deep into the endoplasm, where they are lost, one in the vicinity of the 

 macronucleus, the other near the contractile vacuole. 



Basal granules are described, but no connecting fibrils mentioned. 



The function of this enigmatical organ is purely conjectural; possibly it 

 has something to do with the opening and closing of the mouth. . . . What- 

 ever the specific function may be there is little reason to doubt that it is 

 intimately connected with the irritability of the mouth region. 



