190S.] MAMMALS. 197 



Zapus princeps Allen. Rocky Mountain Jumping Mouse. 



J. Alden Loring took two individuals of this species a few miles 

 west of Henry House. Alberta. September 6, 1895. In L896 he took 

 several near his camp in the mountains 15 miles south of Henry House. 

 They were trapped in shrubby willows beside a small stream near 

 timber line, and have already been recorded." The vicinity of Henry 

 House is the northernmost point from which this Rocky Mountain. 

 species is known. 



Zapus princeps minor Preble. Saskatchewan Jumping; Mouse. 



Three specimens taken on Blindman and Red Deer rivers, near 

 Red Deer, Alberta, in June and July, 1900, by G. F. Dippie, and now 

 in the Biological Survey collection, agree perfectly with Z. />. minor 

 from the type locality. This form is known only from the Saskatch- 

 ewan basin. 



Erethizon dorsatum (Linn.). Canada Porcupine. 



Though originally abounding nearly throughout the forested region, 

 the porcupine has become rare in most parts of the north, mainly 

 owing to its sluggish habits and its desirability as a food animal. 

 The Indians are very fond of its flesh, and as the animals, in a fairly 

 open country, may be left almost indefinitely with a reasonable cer- 

 tainty of being found again when wanted, they have been unable to 

 hold their own in most sections. Xone were seen during the course of 

 our journeys, and I obtained only a few records of its occurrence. J. S. 

 Edmonton informed me that he had seen a few near Firebag River, a 

 small stream which enters the Athabaska about 75 miles below Fort 

 McMurray. The animal was reported fairly common in the country 

 north of Fort Chipewvan, and in the region about Fond du Lac. at, 

 the eastern end of Athabaska Lake. James MacKinlay informed me 

 that he had seen a few about the eastern end of Great Slave Lake. 



In the summer of 180*2, while exploring in the region between Atha- 

 baska Lake and Churchill River, J. B. Tyrrell found the porcupine 

 plentiful about Cree Lake.'' 



MacFarlane states that porcupines are but rarely met with in the 

 northern part of the Anderson River region, but are more numerous 

 to the southward of that section, though nowhere very abundant in 

 the far north.' 



Erethizon epixanthum Brandt. Yellow-haired Porcupine. 



Data to define the ranges of this and the preceding form in this 

 region are not at hand, but E. epixanthum appears to be confined 

 mainly to the region of the Rocky Mountains. Porcupines are occa- 



" X. A. Fauna, X... L5, p. 23, 1S99. 



''Ann. Kept. Can. Geol. Surv., VIII (new ser.), p. 13D, 1896. 



'True. D. S. Nat. Mus., XXVIII, p. 711, 1905. 



