200 



ELECTRIC FISHES. 



LECT. X. 



These nerves, then, are neither nerves of sensation nor 

 of motion. They possess no other function than that of 



Fig. 15. 



Brain and Cerebral Nerves of the Torpedo. 

 Q 



I. Cerebrum. 

 II. Optic lobes. 



III. Cerebellum. 



IV. Medulla oblongata and electric 



lobes. 



1. Olfactory nerves. 



2. Optic nerves. 



3. Motores Oculorum. 



4. Pathetic!. 



5. Trifacial nerves. 



6. Abducentes. 



7. Auditory nerves. 



8. Pneumo gastric nerves. 



A,B,c,D,E,r,G,H,i,N,x. Different ramifi- 

 cations of the trafacial nerve. 



P,Q,R,S,T,U. Ramifications of the pneu- 

 mo-gastric nerve. 



L. Branch of the trifacial distributed in 

 the electric organ. 



U,T,S. Branches of the pneu mo-gas trie 

 nerve distributed in the electric organ. 



R. Twig, a part of which is distributed 

 in the electric organ, 



Q. Lateral and recurrent nerve, fur- 

 nished with a ganglion at its base. 



P. Branch distributed to the cosophagus 

 and stomach. 



G. Pn. Pineal gland. 



