Herrick, Gustatory Paths in Fishes. 



441 



layer, thrust their dendrites inward in a radial direction and 

 there engage the termini of the peripheral neurones of the first 

 order instead of spreading out tangentially among these termini, 

 and the neurite arises from the tip of the dendrite. This ar- 



sec. gusi.n. 

 n.Vll.s 



n. II s. 

 hbus X-^ 

 n.X.s 



n. ]/. mot. 

 n. I///, mot 



n.l)(.mot 

 /obus IX. 



n. X. mot 



-/^mc- funiculi 



Fig. J9. Diagram of the gustatory paths in the brain of the carp as seen 

 from above. Designations in general as in Fig. 38. 



The sensory root fibers and long sensory tracts are indicated on the left side, 

 the short paths, return path from the inferior lobe and motor root fibers, on the 

 right side. The lines, inf. I., designate the outer margins of the inferior lobes. 

 The dendrites of all the motor nuclei ramify in the substantia reticularis grisea. 

 Two types of motor fibers are indicated in the vagus root {n.X.tuot.], (i) those 

 from the motor layer of the vagal lobe (above), and (2) those from the nucleus 

 ambiguus (below). The facial lobe is designated, VII; the superior secondary 

 gustatory nucleus, sec.gtist.n. The area designated nuc.fiiniculi contains also the 

 inferior secondary gustatory nucleus. 



