XIII BRAIN OF CARNIVORA 389 
surface of that bone. The digits of the Carnivora are mostly 
five, and are never less than four. The mode of progression may 
be digitigrade or plantigrade, and the intermediate semidigitigrade 
Hyp IT Po VIVIT 
Fie. 192.—Brain of Dog. A, Ventral: B, dorsal; C, lateral aspect. 6.o/, Olfactory 
lobe; Cr.ce, crura cerebri; Fi.p, great longitudinal fissure; HH, HH", lateral 
lobes of cerebellum ; Hyp, hypophysis ; Med, spinal cord ; .VH, medulla oblongata ; 
Po, pons Varolii; VH, cerebral hemispheres ; Wu, middle lobe (vermis) of cere- 
bellum ; 7-XZ/, cerebral nerves. (From Wiedersheim’s Comparative Anatomy.) 
mode of walking also occurs. The brain in all Carnivora is large 
and well convoluted. The arrangement of the convolutions is 
characteristic. There are three or four gyri disposed round each 
other, of which the lowest surrounds the Sylvian fissure. The 
stomach in these creatures is always simple in form, without 
