NATURAL HISTORY. 



PTEROMYS. (Gr. Ilrepov, a wing; pv^ a mouse.) 



121 



Alpinus(Lat. Alpine), the Flying Squirrel. 



Mountains in America, where it lives among the dense pine 

 forests that abound there. Its colour is yellowish "brown, and 

 its length about a foot. 



ARCTOMYS. (Gr. "A/>/cro$-, a bear ; //f, a mouse.) 



Marmotta, the Marmot. 



The ALPINE MARMOT is common in the mountainous 



districts of Europe. It lives in burrows dug in the ground. 



These burrows arc something in the shape of a Y, one of the 



forks leading to its habitation, a kind of chamber lined with 



F 



