1903.] Allen, Mammals from Northern British Columbia. 5^5 



40. Sorex personatus streatori Merriam. STREATOR SHREW. 



Sorex personatus streatori MERRIAM, N. Am. Fauna, No. 10, Dec. 31, 

 1895, 62. Yakutat, Alaska. 



Represented by 7 specimens from Wrangel Island, June 27 

 to July 7, and 2 from Kupreanof Island, November 3, the 

 latter being in the plumbeous autumn pelage. The Wrangel 

 Island specimens agree within about a millimeter with the 

 measurements given by Dr. Merriam (N. Am. Fauna, No. 10, 

 1895, P- 63) f r a series of 7 specimens from the same locality, 

 Mr. Anderson's measurements being as follows: Total length, 

 107 (104-114); tail vertebrae, 45 (44-47); hind foot, 13.1 

 (13-13.5); ear, 7.7 (7-8.5). The Kupreanof specimens are 

 slightly smaller and apparently less mature. 



41. Sorex obscurus Merriam. MOUNTAIN SHREW. 



Sorex vagrans similis MERRIAM, N. Am. Fauna, No. 5, Aug., 1891, 

 31, pi. iv., fig. 3. Salmon River Mountains, Idaho. 



Sorex obscurus MERRIAM, N. Am. Fauna, No. 10, Dec. 31, 1895, 72 

 = 5. v. similis, the name similis being preoccupied. 



Represented by 33 skins and skulls and 7 additional skulls 

 (with field measurements) collected at the following localities : 

 Telegraph Creek, 10 specimens, July 15 to August 15; Cheon- 

 nee Mountains, 4, July 22-25; Shesley River, 4, August 23-31 ; 

 Little Tahltan River, i, August 18; Level Mountain, 4, Sep- 

 tember 15; Raspberry Creek, 10, October 7-13. 



The Raspberry Creek series is in the ash gray pelage of 

 winter, and thus contrasts strongly in color with all the others, 

 which are in the brown pelage of summer. This series also 

 averages slightly smaller in all of the measurements than 

 those from the other localities, as shown by the following: 



Telegraph Creek, 10 specimens: Total length, 112.9 (no- 

 115); tail vertebrae, 45.3 (43-48); hind foot, 13 (12.5-13.5); 

 ear, 8 (7-8.5). 



Shesley River, 6 specimens: Total length, 115.3 (111-121); 

 tail vertebrae, 45.6 (43-48); hind foot, 13 (12.5-15); ear, 

 8.6 (7.5-9). 



Raspberry Creek, 10 specimens: Total length, 109.7 (102 



