596 PHYLUM CHORDATA : CLASS PISCES — FISHES 



lc 



L I 'py 



Fig. 336. — Dissection of nerves of skate. 



C.H., Cerebral hemispheres ; O.TH., optic thalami ; O.L., optic 

 lobes; A/., medulla; /\V., posterior part of cerebellum, 



