Key to the Insectivora
           
 
 Tail short, much less than length of head and body; three, four, or five unicuspid teeth (Fig. 12a, b, c)
   
 Tail longer, at least approximately equal to head and body length; color grayish; five unicuspid teeth (Fig. 12a)
 
           
Artiodactyla
 - 
Carnivora
 - 
Chiroptera
 - 
Didelphimorphia
 - 
Insectivora
 - 
Lagomorpha
 - 
Rodentia
 - 
Xenarthra
Scientific Names - Common Names