192 CANADIAN JERBOA, 



breast and belly white : the tail ash-coloured, and 

 annulated more than half way from the base with 

 rings of brown : the hind legs are long in propor- 

 tion to the fore legs ; and the feet are longitudin- 

 ally black beneath : on the fore feet is a warty tu- 

 bercle in place of the thumb. The length from 

 nose to tail is about six inches ; the tail not quite 

 so long. 



CANADIAN JERBOA. 



Dipus Canadensis. D. fusco-Jlavescem, subtus albidus, palmis 

 tetradactylis, planfis 'pentadactyUs, cauda longa siibnuda mnrma. 



Yellowish-brown Jerboa, whitish beneath^ with the fore-feet 

 tetradactylous, the hind-feet pentadactylous 3 the tail long 

 and mouse-like. 



Dipus palmis tetradactylis, plantis pentadactylls, cauda annulata 

 undique setosa. 



Jumping Moufe of Canada. Lin. Trans* 4. j». 157. pi. 8. 

 Canada Rat. Pennant Quadr. 2, p. 172. 



This minute species, which is figured on the 

 annexed plate in its natural size, and represented 

 both in its active and torpid state, is a native of 

 Canada, and appears to have been first discovered 

 by General Davies, who had an opportunity of 

 examining it during his residence at Quebec, and 

 who has described it in the fourth volume of the 

 Transactions of the Linnasan Society. 



The description is as follows : 



As I conceive there are very few persons, 

 however conversant with natural history, who 

 may have seen or known that there was an ani- 



