THE OTTAWA I(ATURALIST. 



Vol. XV. OTTAWA, FEBRUARY, 1902. No. 11. 



MAMMALS OF THE CHILLIWACK DISTRICT, B.C. 



By Allan Brooks. 



Chilliwack lies on the south bank of the Eraser River, the 

 valley proper being- a very level stretch of alluvial land some 

 seventy feet above sea level. On the east, the Cascades rise sheer 

 from the flat land to the height of from 5,000 to 8,000 feet, Mt. 

 Baker to the southward being over 14,000 feet. The fauna of the 

 lower levels is typical of the coast district, the higher peaks ex- 

 tending into the boreal and alpine zones, which give a great 

 diversity of fauna and flora for so small an area. 



Most of my mammal collecting was done between 1894 ^nd 

 1900, prior to that time my attention being devoted mainly to 

 birds. 



I made many trips into the mountains, including the Mt. 

 Baker range on 49th parallel, Tami Hy peak, Chilliwack Lake, 

 and mountains to the southeast of this lake, mountains at head of 

 Stave lake, Cheam peak, and many of the smaller mountains ; so 

 the district was very fairly covered by me. Most of my collections 

 were sent to, and identified by, Mr. Outram Bangs and Mr. Senit 

 S. Miller, Jr. I have also supplied skins to the Biological Survey 

 collection and a few to Mr. S. Rhoads, as well as skins of a pair 

 of most of the species enumerated to the Provincial Museum, 

 Victoria, B.C. 



Many of the rodents may be intergrades with the forms occur- 

 ring to the east of Cascade Range. One or two bats not enumer- 

 ated may occur, for instance Atalphacinerea and Myostis longicrus; 

 I am pretty sure I have taken the last. The wolverine occurs in 

 the mountains to the north and may be found in the district, 



