304 THE MOUNTAIN. 



BEAYER. 



CASTOR Fiber, (Linn.) Castor Canadensis, (Kuhl,) or 

 American beaver. This animal is said still to be found in 

 the wildest parts of the Alleghany in Pennsylvania. His 

 history, habits, and the wisdom of his instincts are well 

 known. He is fast disappearing. Original range, the con- 

 tinent of North America. 



JACULUS. 



JACULUS, (Wagler.) Jaculus Hudsonius, or jumping 

 mouse. This strange little animal is found from Nova 

 Scotia, Labrador, to Southern Pennsylvania, and west to 

 Pacific Ocean. 



MOUSE, RAT. 



Mus Musculus, common mouse. Range, every place on 

 the continent. Introduced. 



Mus Decumanus, (Pallas,) or brown rat, has a continental 

 range. It is an introduced species. 



Mus Rattus, or black rat, is found every place. Intro- 

 duced. 



Arvicola Hirsutus and Arvicola Pennsylvanica have a 

 Middle State range. 



"Hesperomys Leucopus, (Wagner,) white-footed mouse. 

 Range, Nova Scotia and (Labrador) to Yirginia, and west 

 to the Mississippi River. " Baird. 



"Hesperomys Nuttalia, red mouse. Range, Southern 

 Pennsylvania to Georgia, and west to St. Louis." Idem. 



MUSK-RAT. 



FIBER, (Cuv.) Fiber Zibethicus, musk-rat. This rat 

 has a continental range, and is said to increase in numbers 

 as the country is improved, which is unlike the other fur 

 tribes, which decrease with the advancement of man. It 

 abounds. 



