332 SUMMARY OF CURRENT RESEARCHES RELATING TO 



persists in the cyst stage as a meridional structure. The neuromotor^ 

 apparatus consists of centresome, nuclear rhizoplast, three blepharoplast^ 



^ig^ A.—Chilo7nastix mesnili (Wenyon). Normal llagellate viewed 

 from the ventral or oral side and showing all the structures of the body. 

 X 6370. 



Fig^ B.— The cyst viewed from the ventral or oral side. X 6370. 



cent., centrosome; cent.k., central karyosome : cyst., cyst wall; cyt., 

 cytostome; cyt.fl., cytostomal fiagellum or undulating membrane; 

 iwf.rM^., intranuclear rhizoplast ; l.a.fl., left anterior liagella; nuc., 

 nucleus; nuc.rhiz., nuclear rhizoplast; _2Jar.6., parabasal body; 

 parast, parastyle ; perist.f., peristomal fibre; prim.hleph., primary 

 blepharoplast ; r.a.fl., right anterior fiagellum ; S('c.6/ep/i., secondary 

 blepharoplast ; spir.gr., spiral groove; tert.bleph., tertiary blepharo- 

 plast ; tr.rhiz., transverse rhizoplast. 



