96 University of California Publications in Zoology [Vol.10 



Microtus tetramerus (Rhoads) 

 Vancouver Island Meadow Mouse 



A large series was collected at Beaver Creek, and a few at 

 other points. None was secured, nor did we see runways or 

 other signs of their presence at any of the points visited on the 

 east side of the island. Some extensive grassy meadows at 

 Beaver Creek harbored large numbers of the animals, but the 

 runways were few and rather ill-defined, considering the extent 

 to which they were used. A large proportion of the specimens 

 collected here during June were young of various ages. Many 

 (if the females were pregnant, containing five, six or seven 

 embryos. In the Golden Eagle Basin (altitude 2000 feet) the 

 ground in many places showed traces of the old burrows which 

 had been used under the snow during the previous winter, plugs 

 «'■> of dirt and dry grass enabling one to trace their courses easily. 

 There were many of these around the mine buildings, where the 

 piles of lumber, wood and rubbish had evidently been used as 

 shelters, but at the time of our visit the mice had all left this 

 place, and none was caught about the houses. I found them in 

 patches of grass and veratrum in the open basin, but there were 

 almost no runways, and they did not appear to be abundant. A 

 line of traps was set out for two nights near the summit of 

 Mount Douglas, but no mice were secured, nor did I see any sign 

 of their presence. 



One specimen was taken at Friendly Cove, but they may be 

 mure abundant here than this would indicate, for we did com- 

 paratively little trapping at this point. 



One hundred and forty-two specimens were preserved (nos. 

 12311-12446, 12591-12596), 136 skins and six in alcohol. Adults 

 measure somewhat larger than the dimensions given by Bailey 

 (1900, p. 47) of specimens from the vicinity of Victoria. Ten 

 adults from Beaver Creek, five males and five females, average 

 as follows: length 198.2 (185-205), tail 62.7 (59-64), hind foot 

 24.4 (24-25). 



Felis oregonensis Rafinesque 

 Northwestern Puma 



An abundant species, for an animal of this type, throughout 



