340 
COMPARATIVE ZOOLOGY. 
telope are solid, horny, and permanent; in the Goat, 
Sheep, and Ox they are hollow, horny, and permanent. 
11. Carnivores, or Beasts of Prey, may be recognized 
by their four long, curved, acute, canine teeth, the gap 
United States, 
Fig. 336.—Raccoon (Procyon lotor). 
Ly Ome! 
y EB od, WR Sean 
on PE sah 11 ne 
Fie. 337.—Wolf (Lupus occidentalis). 
United States. 
> 
Fic. 338.—Ermine-weasel (Putorius Noveboracensis). 
United States. 
‘between the incisors 
and canines in the 
upper jaw for the 
reception of the low- 
er canine, and mo- 
lars graduating from 
a tuberculate to a 
trenchant form in 
proportion as the 
diet deviates from a 
miscellaneous kind 
to one strictly of 
flesh. The incisors, 
with rare exceptions, 
number six in each 
jaw. The teeth are 
lodged in distinct 
sockets, and covered 
with enamel. There 
are always two sets. 
The skull is com- 
paratively small, the 
jaws are shorter and 
deeper than in Un- 
gulates, and there 
are numerous bony 
ridges on the inside 
and outside of the 
cranium — the high 
occipital crest being specially characteristic. The cerebral 
hemispheres are joined by a large corpus callosum, but the 
