ALCES. ODONTOCCELUS. 13 



brown to the roots; a longer and more slender skull; narrower ros- 

 trum; larger teeth, with, consequently, longer tooth rows, and longer 

 nasals. The comparison was made with four skulls of adult Caribou 

 from Manitoba and Keewatin, and ten (adult ?) from eastern Canada 

 and Maine. 



Genus Alces (39). 



Alces columbae Lydekker. 



Alces columbce Lydekker, The Field, London, 109, 1907, p. 182. 

 Type locality. "Ontario," Canada. 



Alces americanus shirasi Nelson. 



Alces americanus shirasi Nels., Proc. Biol. Soc. Wash., XXVII, 

 1914, p. 72. 



Type locality. Snake River, 4 miles south of Yellowstone Park, 

 Lincoln County, Wyoming. 



Geogr. Distr. Northern Rocky Mountains in Wyoming, Montana 

 and Idaho. 



Genl. Char. Winter Pelage. Neck above, and back, pale rusty 

 yellowish brown, washed with dusky on tips of hairs; ears paler; 

 hoofs smaller. 



Color. Top of head pale rusty brown; muzzle dusky brown, lips 

 bordered with grayish white; upper part of neck and back pale 

 yellowish brown, tips of hairs dusky; sides, upper part of limbs, and 

 under side of body, except lower abdomen and inguinal region which 

 are pale buffy, black; front legs from knees to hoofs, and lower part 

 of hind legs dusky brown; under side of neck mixed black and rusty 

 brown; ears behind dull brownish gray, front of ears buffy whitish. 

 Type in United States National Museum. 



Measurements. Total length, 2540; hind foot, 762; length of 

 front hoof, 130 (Collector). 



Genus Odontoccelus (41). 



Odontoccelus rothschildi chiriquensis Allen. 



Odocoileus (!) rothschildi chiriquensis Allen, Bull. Am. Mus. Nat. 

 Hist., XXVIII, 1910, p. 95. 



Type locality. Boqueron, Chiriqui. 



Color. Top of head and nose fuscous; sides of head ochraceous- 

 buff ; neck and upperparts have all the hairs tipped with light ochra- 

 ceous, rest of hairs blackish; flanks and outer side of limbs light 

 ochraceous; long hairs on rump ochraceous-orange ; on each side 



