TAMIAS. SPERMOPHILUS. ARCTOMVS. 427 



IVinttr Pelage. Above olive gray, with black and whitt- stripes; 

 feet grayish white; tail, above black grizzled with white; beneath 

 clay color margined with black and edged with white. 



Measurtments. Total length, 223; tail vertebnc, 103; hind 

 foot, 32. 



38. Spennophilus. 



109. b. Spermophilus empetra plesiup, Osgood, N. Am. Faun., igoo. 

 No. 19, p. 29. 



Ij/e loealily. Bennett City, Lake Bennett, British Columbia. 



Geogr. Distr. South side of White Pass to Fort Selkirk, .Vlaska. 



Genl. Char. Similar to .S. empetra, but smaller; less fulvous; 

 molar teeth larger. 



Color. Posthrecding Pelage. Above mixed black, yellowish gray 

 and white; top of head chestnut, nose and forehead hazel; sides of 

 body, legs and under parts cinnamon rufuous; chin white; tail, 

 above black and yellowish, margined and broadly tipped with black 

 and edged with white; beneath cinnamon rufous margined with yel- 

 lowish white. 



Spring Pelage. Above yellowish gray, nose, forehead and top of 

 head cinnamon rufous; neck and shoulders hoary; sides and under 

 parts grayish white washed with yellowish; feet buffy ocliraceous; 

 tail paler than in postbreeding pelage. 



Measurements. Total length, 345; tail vertebr;t, 93; hind foot, 

 50. (ex Osgood, 1. c.) 



4<). Arotoinys. 



137. a. Arctomy s /Idviventer nvarus. Bangs, Proc. N. Kng. Zool. 

 Club, 1899, p. 68. 



Type locality. Okanagan, British Columbia. 



Geogr. Distr. British Columbia, range unknown. 



Genl. Char. Similar to A. flaviventer, colors paler. 



Color. Like A. flaviventer : "on the back and shoulders the 

 black central bands of the hairs are much sliorter and the yellowish 

 and grayish tips much longer, giving to these parts a lighter and 

 more hoary appearance; yellow of under parts, feet and hands paler." 



Measurements. Type, youngish, total length, 457; tail verte- 

 bra', 140; hind foot, 70. (Bangs, 1. c.) 



