THE COLLARED PECCARY. 
DiCOTYLES TORQUATUS. CuV. 
The Peccaries, although bearing a close affinity both 
in external form and internal structure to the common 
Hog, are nevertheless distinguished from that well 
known beast by several striking characters, of sufficient 
importance, when taken in conjunction with their trans- 
atlantic origin, to justify their separation as a distinct 
genus. The most essential of these characters consist 
in the number and direction of their teeth, the structure 
of their hinder feet, the form of their head and snout, 
the shortness and flatness of their tail, and the exist- 
ence of a peculiar glandular apparatus. They have in 
the upper jaw four incisor teeth instead of six, the 
number found in the Pigs of the Old World ; and six 
in the lower. Of these the two outer are separated 
from the intermediate ones by a vacant space, and are 
