Key to the Chiroptera
           
 
 Hairs dusky black, tipped with pale brown on the back, belly hairs with white tips; first upper incisor usually bifid (Fig. 20a)
   
 Hairs brownish, without appreciable color change from root to tip; first upper incisor unicuspid (Fig. 20b)
 
           
Artiodactyla
 - 
Carnivora
 - 
Chiroptera
 - 
Didelphimorphia
 - 
Insectivora
 - 
Lagomorpha
 - 
Rodentia
 - 
Xenarthra
Scientific Names - Common Names