PROSENCEPHALON OF MAMMALS. 



113 



having the f outer root,' fig. 82, x, which is continued from the 



basirhinal tract, 1 ib. h, the ' inner 

 root,' y, and the intermediate ' per- 

 forate body or tract,' ib. r: the 

 lateral ventricle is continued into 

 the rhinencephalon (fig. 79, h), 



Lepus. d Corpus striatum. 

 c Tenia sevnicirc. / Hippoc. major. 



Mesencephalon and section of cerebellum, 

 Agouti, xxxii". 



The chief brain-characters of the Lissencepliala are, the non- 

 extension of the cerebrum over the cerebellum, the paucity and 



81 82 



Base of the brain, Agouti, xxxii" 



Base of the brain, Porcupine (Hystrix crlstata). xxxir'. 



1 Part of the ' natiform protuberance ' or ' lobe of the hippocampus* of some anthro* 

 potomists. 



VOL. III. I 



