1915.] 



MARMOTA CALIGATA GEOUP. 



59 



cinnamon-, sometimes tinged with hazel or van dyke brown; under- 

 fur dark hair-brown, bone brown, clove brown, bister, mouse gray, 

 fuscous, or fuscous-black; sides of head and neck cinnamon, ochrace- 

 ous-cinnamon, vandyke brown or blackish brown, more or less mixed 

 with white or buffy white; borders of nose, lips, and chin soiled whit- 

 ish; top of head and face black or blackish brown; face in front of 

 and between eyes more or less extensively marked with white; legs 

 usually same color as back; feet black or blackish brown, the front feet 

 often with white markings, the hind feet mixed with cinnamon; tail 

 above, cinnamon, pinkish cinnamon, cinnamon-buff, clay color, 

 chestnut-brown, or bay, often mixed with hazel or vandyke brown; 

 beneath, chestnut-brown, clove brown, blackish brown, or hessian 

 brown, mixed with hazel, bay, or ochraceous-tawny; underparts 

 white, grayish white, or clay color, varied with cinnamon, cinnamon- 

 buff, or blackish brown. 



Geographic distribution. — -From the Endicott Range and the Alaska 

 Peninsula, Alaska, south to Mount Rainier, Wash., and the Bitter- 

 root and Salmon River Mountains, Idaho. 



MARMOTA CALIGATA CALIGATA (Eschscholtz). 



Northern Hoary Marmot. 



(PL IV, fig. 6; PL IX, fig. 4; PL XV, fig. 3.) 



Arctomys pruinosa Richardson, ZooL Jour., Ill, 1828, p. 518. (Not of Gmelin.^) 



Arctomys caligata Eschscholtz, ZooL Atlas, Part II, 1829, p. 1, Plate VI. 



Arctomys pruinosus Richardson, Fauna Boreali-Amer., I, 1829, p. 150; Baird, Mamm. 



N. Am., 1857, p. 345; Allen, Mon. N. Am. Rodentia, 1877, p. 924. (Not of Gmelin.) 

 Arctomys caligatus Tyrrell, Proc, Canadian Inst., 3rd Ser., VI, 1888, p. 88. 

 Marmotta caligata Allen, Bui. Amer. Mus. Nat. Hist., XIX, 1903, p. 539. 

 Marmota caligata MacFarlane, Proc. U. S. Nat. Mus., XXVIII, 1905, p. 751. 



Type locality. — Bristol Bay, Alaska. 



Distribution. — ^Alaska and Yukon, from the Portland Canal north 

 on the coast to Bristol Bay, and in the interior to the Endicott 

 Range and the mountains lying westw^ard of Fort Good Hope, 

 Mackenzie. 



Characters. — Size medium (for the group) ; colors moderately white; 

 skull relatively short and broad. 



Color. — General tone of upperparts white, moderately tipped 

 with black, becoming cinnamon-buff on hinder back and rump; 

 underfur at base fuscous or dark mouse gray (shading on hinder 

 back to bister), succeeded on fore back by a -broad area of white 

 which gradually shades to cinnamon-buff on hinder back (in some 



1 Arctomys -pruinosa, Gmelin, Syst. Nat., 1, 1788, p. 144— based on the hoary marmot of Pennant. A 

 careful comparison of Pennant's description "with specimens of the several American species leads to the 

 conclusion that this species is unidentifiable; the name -pruinosa is therefore rejected. 



