Pomona College Journal of Entomology 



835 



Figure 263. Sections Through the Nervous Systems of Brachybothrium sp. 



The positions of cells and fibers is shown at various levels. A, cross section near 

 the caudal end; B, higher up, showing dense masses of substance among the 

 fibers; C, more cephalad; D, section through sub and suprsesophageal masses, 

 with the intestinal opening in tlie center: E, longitudinal section near edge; 

 I', same as E, only farther in. 



