38. NORTH AMERICAN FAUNA. [no. 19. 



taken. Considerable careful trappino- was clone at various points 

 between these two places, but no other specimens were secured. At 

 Rink Rapids they were caught about old logs and among dry leaves in 

 places usually frequented by red-backed mice. At Charlie Creek one 

 was caught in a M'wrotus runway and several were secured on the side 

 of a cut bank. On one occasion one was seen running about under a 

 brush heap in midday. 



Lemmus alascensis Merriam. Alaska Lemming. 



Lcmmui^ aluscensia Merriam, Proc. Wash. Acad. Sci., II, 26-27, March 14, 1900. 



All efforts to secure this species at St. Michael proved fruitless. 

 I kept large numbers of traps out for more than two weeks and set 

 them in all conceivable locations about the tundra, but failed to catch 

 any lemmings. 



Dicrostonyx nelsoni Merriam. Nelson Pied Lemming. 



Dicrostonyx nelsoni Memam, Proc. Wash. Acad. Sci., II, 25-26, March 1-1, 1900. 

 Dicrostonyx hudsonius alascensis Stone, Proc. Acad. Nat. Sci. Phila., March 24, 1900, 

 37-38. 



No specimens of this species were taken. Nelson says of it: 



Specimens were brought me by the fur traders from above Fort Yukon and from 

 Nulato, Anvik, and Kotlik, along the course of the Yukon, and also from the Kaviak 

 Peninsula and about Kotzebue Sound. A few were taken near St. Michael, but 

 they were not numerous there. They are more plentiful about Bering Straits than 

 any other district visited by me, if the number of their skins among the native 

 children can be taken as a guide. 



Zapus hudsonius alascensis Merriam. Alaska Jumping Mouse. 



Three typical specimens of this jumping mouse were taken in a" 

 sedgy swamp near the foot of Lake Lebarge. Similar swamps exist 

 near the Yukon, at least as far as Fort Yukon, but I was unable to do 

 any trapping in them. No specimens were taken elsewhere. 



Erethizon epixanthus myops Merriam. Alaska Porcupine. 



Erethizon epixantlius myojjs Merriam, Proc. Wash. Acad. Sci., II, 27-28, March 14, 1900. 

 Porcupines are quite common in all the forest region of Alaska. 

 I noticed signs of them at man}^ places along the Yukon. They were 

 abundant about Glacier, in the White Pass region, and 1 shot one there 

 one evening as it swayed back and forth in the top of a slender alder. 

 It was eating the leaf buds which were just bursting. 



Ochotona coUaris (Nelson). Alaska Pika. 



Two specimens of an ashy gray Ochotona were taken, one at the 

 summit of White Pass, another at the head of Lake Bennett. The 

 species was apparently quite rare at these localities and it was only 

 with considerable difficulty that these individuals were secured. Both 

 are very pale, ashy gray, with pure white underparts, no traces of 



