90 



Journal of Comparative Neurology. 



DESCRIPTION OF PLATES. 



REFERENCE LETTERS. 



ans. — ansate fissure. 



i. — buttress. 



eal. — callosum. 



caU. — calcar. 



£f, — confinis fissure. 



el. — callosal fissure. 



col. — «ollateral fissure. 



cor. — coronal fissure. 



cr. — cruciate fissure. 



<?/. — ectolateral fissure. 



/. — fimbria. 



^. — genual fissure. 



Ai/>. — hippocampus. 



/. — lateral fissure. 



mar^. — marginal fissure. 



me. — medicornu. 



ml. — medilateral fissure. 



/<r. — postcornu. 



fcr. — postcruciate fissure. 



//. — plexus. 



pre, — precornu. 



J>rcr. — precruciate fissure. 



/M. — postrhinal fissure. 



/>rs/>. — presplenial fissure. 



prss. — presupersylvian fissure. 



/sp. — postsplenial fissure. 



/>ss, — postsupersylvian fissure. 



r. — rostral fissure. 



rk. — rhinal fissure. 



so. — superorbital fissure. 



sp. — splenial fissure. 



s(r. — striatum. 



Syl. — Sylvian fissure. 



ss. — supersylvian fissure. 



f/i. — thalamus. 



74r. — ursine lozenge. 



PLATE X. 



Fig-. I. The ventral aspect of the brain of the fur seal Callorhinus ursinus. 

 On each side of the cerebellum is a depression into which fits the petrosal por- 

 tion of the temporal bone. 



Fig: 2. The dorsal aspect of the bram showing the cerebellum largely 

 concealed by the cerebrum. 



Fig. J. The left lateral aspect of the cerebrum of a young specimen. 



Fig. ^. The right lateral aspect of the cerebrum of an adult male Callo- 

 rhinus. 



Fig. 6. 



The mesal aspect of the right hemicerebrum. 

 The mesal aspect of the left hemicerebrum. 



PLATE XI. 



Fig. I. The ventral aspect of the brain of the haired seal, Phtca vilulina, 

 slightly modified from Tiedemann's figure. 



Fig. 2, The dorsal aspect of the cerebrum of Phoca vitulina, after Tiede- 

 mann. 



P*g' 3' The left lateral aspect of the cerebrum. 



Fig. ^. The right lateral aspect of the cerebrum. 



Fig. J. The mesal aspect of the right hemicerebrum. 



Fig. 6. The mesal aspect of the left hemicerebrum. 



