1915.] - 



MARMOTA CALIGATA GROUP. 



69 



Specimens examined. — Total number, 50, as follows : 



British Columbia: Chilliwack (mountains near), 1; ^ Hope, 1; ^ Howe Sound 

 (near head), 3;^ Mount Baker Range (near United States boundary), 8;^ 

 Skagit River (mountains near head), 6; Spences Bridge, 1;^ Tammi Hy 

 Mountain, 2.^ 



"Washington: Camp Chiloweyuck, 2; Cascade River (near head), 8; Easton 

 (mountains near), 1; Mount Rainier, 7; "Northwest boundary- survey" 

 (probably Mount Baker Range), 10. 



MARMOTA OLYMPUS (Merriam). 



Olympic Marmot. 



(PI. II, fig. 1; PI. IX, fig. 1; PI. XV, fig. 1.) 



Arctomys olympus Merriam, Proc. Acad. Nat. Sci., Philadelphia, 1898, p. 352. 

 [Marmota] olympus Trouessart, Oat. Mamm., Suppl,, 1904, p. 344. 



Type locality. — Head of Soleduck River, Olympic Mountains, 

 Wash, (at timberline). 



Distrihution.—Upjyev slopes of the Olympic Mountains, Wash., 

 above timberHne (from about 4,000 feet altitude to near summits of 

 peaks) . 



Characters. — Size large (about equaling M. caligata cascojlensis) ; 

 color in fresh pelage bro^^nish drab mixed with white; feet brown; 

 skull with broad rostrum and interorbital region. 



Color. — FresJi pelage: ^ General tone brownish drab, more or less 

 mixed with white hairs; underfur between hair-brown and benzo 

 brown, becoming pale drab-gray at tips; long hairs glossy blackish 

 brown mixed with more or less pure white ones; top and sides of 

 head blackish broTSTi, mth a broad, white patch in front of eyes; 

 sides of nose, hps, and chui white; legs brownish drab shadmg 

 to blackish brown on the feet; tail clove brown, tipped with light 

 pinkish cinnamon; underparts broTOish drab mixed with white (or 

 sohd soiled whitish) . Worn summer pelage: General tone of upper- 

 parts pinkish buff, varied with russet, the bases of hairs bister; feet 

 chestnut-brown; tail above, pinkish buff or cinnamon-buff, mixed with 

 snuff brown; beneath, snuff brown to chestnut-brown. Young (half- 

 grown August specimens) : General tone of upperparts grayish 

 brown, becomhig cinnamon on rump; underfur hair-brown at base, 

 tipped on fore back with white, and on hinder back and rump with 

 cinnamon or cinnamon-buff'; top and sides of head and fore legs bister; 

 feet dark clove brown; underparts light clove brown mixed with white 

 or pale buff. 



1 Collection Victoria Mem. Mus. 



2 Collection Mus. Com;?. Zool. 



3 Including five in Mus. Comp. Zool. 

 Collection Amer. Mus. Nat. Hist. 



» No specimens in full winter pelage have ijeea seen; description from August specimens just beginning 

 to acquire the fall pelage. 



