Key to the Artiodactyla
           
 
Ears relatively larger; tail shorter, close-haired or rope-like, black at tip, the remainder white and surrounded by small whitish rump patch; antlers usually with main beam forked into two more-or-less equal branches, each of which divides again (Fig. 74b); preorbital pit deep; metatarsal gland usually longer than 100 mm
   
Ears relatively smaller; tail longer, bushy, brown on top, and brilliant white beneath, carried erect when running; antlers bending forward with a series of branches rising from main beam (Fig. 74a); preorbital pit shallow; metatarsal gland usually only about 25 mm long
 
           
Artiodactyla
 - 
Carnivora
 - 
Chiroptera
 - 
Didelphimorphia
 - 
Insectivora
 - 
Lagomorpha
 - 
Rodentia
 - 
Xenarthra
Scientific Names - Common Names