Key to the Insectivora
           
 
 Forepaws broad and heavily clawed for digging; eyes and external ears lacking; nostrils opening upward (Fig. 10); teeth white; zygomatic arch complete; tail short and naked
   
 Forepaws small and delicate; eyes small but apparent; external ears present but usually short and hidden in the fur; at least some teeth pigmented with red or brown; zygomatic arch incomplete (Fig. 11); tail short to medium in length, covered with short hairs; nostrils terminal
 
           
Artiodactyla
 - 
Carnivora
 - 
Chiroptera
 - 
Didelphimorphia
 - 
Insectivora
 - 
Lagomorpha
 - 
Rodentia
 - 
Xenarthra
Scientific Names - Common Names