50 



unfamiliar. The kangaroos are less so, perhaps, after the 

 opossums. They are often seen in the Central Park- 

 menagerie. In this Museum there are over twelve species; 

 also fine examples of the opossum, showing how the pre- 

 hensile tail is able to hold their weight suspended. Ten 

 genera and thirty species are known. 



GROUP 51.— The Opossums, Family Didelphyida, has 

 three genera and twenty-two species. 



The Virginia Opossum [Didelphys virginiana) inhabits 

 the United States from the Hudson River to Florida. It 

 seems to be absent from the western country, west of 

 the Missouri. 



GROUP 52.— The Pouched Wolf, &c, Family Dasy- 

 urida. A number of variously shaped and sized animals 



Koala. Kangaroos leaping. 



Flying Marsupial. 



Male Kangaroo and Female with young in pouch. 

 From D. Appleton & Co.'s " Elements of Zoology, Science Series." 



