544 Bulletin American Museum of Natural History. [Vol. XIX, 



15. Peromyscus oreas Bangs. BANGS WHITE-FOOTED 



MOUSE. 



Peromyscus oreas BANGS, Proc. Biol. Soc. Wash., XII, 84, March 24, 

 1898. Mount Baker Range, 49th parallel, British Columbia; altitude, 

 6500 feet. 



A single specimen, Cheonnee Mountains, July 22, a young 

 male with the following measurements: Total length, 189; 

 tail vertebrae, 100; hind foot, 23; ear, 19. In color and 

 character of pelage it closely resembles young adults of P. 

 siikensis, but the skull is very different from the skull of that 

 species. Mr. Osgood (N. Am. Fauna, No. 19, Oct. 1900, p. 32) 

 has recorded P. oreas from Skagway, Glacier, Summit, Ben- 

 nett, Caribou Crossing and other points near the head of the 

 Yukon, showing that its range extends to the northward 

 much beyond the Telegraph Creek region, where, however, it 

 seems to be rare, as only one of the three hundred specimens 

 of Peromyscus taken here proves referable to this species. 



1 6. Neotoma cinerea saxamans (Osgood). NORTHERN 

 BUSHY-TAILED RAT. 



Neotoma saxamans OSGOOD, N. Am. Fauna, No. 19, Oct. 6, 1900, 33. 

 Bennett City, head of Lake Bennett, B. C. 



Represented by 46 specimens, taken as follows : Telegraph 

 Creek, 41 specimens, July 17 and 18, and July 27 to August 

 15; Level Mountain, 2 specimens, September 10 and 21; 

 Raspberry Creek, 2 specimens, October 9 and n; Sheep 

 Creek, i specimen, October 14. Of these 8 are breeding fe- 

 males, and 3 are fully adult males; tne others are apparently 

 all young-of-the-year, and vary from about quarter-grown to 

 full-grown. The young in first pelage are, above, blackish 

 gray; below, with a large pure white pectoral area, and the 

 rest of the underparts with the fur plumbeous tipped more 

 or less with whitish, the white particularly conspicuous along 

 the median line, and expanding to form a small clear white 

 anal patch. In many specimens of this age the whole ventral 

 surface is superficially pure white, with the underfur more or 



