MONODELPHIA. 



439 



behind as in most mammalia. In this group are the Kangaroos 

 {M(KT(ypodidoB), Wombats (Phascolomys), Phalangers {Phalarir 

 gistidce), Opossums (Didelphidm), and the carnivorous Tasmania 

 Devil (Dasyurus), &c. 



Fossil species are found in the Stonesfield slate of Oxfordshire, 

 and previously in the Triassic rocks. 



C. MONODELPHIA 

 = EUTHERIA. 



Order— UNGULATA or HOOFED ANIMALS. 



The Ungulata or Hoofed Animals include several of our 



Fio. 208.— Feet of Usgclata. 

 a, Artiodactyle foot (Pig). B, Perissodactyle foot (Horse). 



domestic animals, such as the horse, ass, mule, pig, goat, sheep, 

 and oxen. It is one of the largest and most important orders of 



