Key to the Rodentia
		Tail 65 mm or less, sharply bicolored; skull usually less than 22 mm in length						Tail more than 65 mm in length; not sharply bicolored; skull usually more than 22 mm
Artiodactyla  -  Carnivora  -  Chiroptera  -  Didelphimorphia  -  Insectivora  -  Lagomorpha  -  Rodentia  -  Xenarthra Scientific Names - Common Names