Text-figure 15. Schematic drawing showing the organization 

 of adoral membranelles of Stentor. C cilia; K kinetosomes; 

 R root fibrils ; Rbf, bundle of root fibrils from a single membranelle ; 

 Bf, zig-zag basal fiber. At right (ii) is shown the hexagonal 

 arrangement of root fibrils and connectives as seen in cross-section 

 at the level indicated. From Randall and Jackson, 1958. 



