Key to the Chiroptera
           
 
 Length of forearm 42-50 mm; ears not joined across forehead; basal one-eighth of hair on body white; skull length usually less than 19 mm
   
 Length of forearm 60-64 mm; ears joined across forehead; basal one-third of hair of back white; skull length usually more than 19 mm
 
           
Artiodactyla
 - 
Carnivora
 - 
Chiroptera
 - 
Didelphimorphia
 - 
Insectivora
 - 
Lagomorpha
 - 
Rodentia
 - 
Xenarthra
Scientific Names - Common Names