76 Bulletin American Museum of Natural History. [Vol. XIV, 



In coloration O. moschatus differs from O. wardi in the gener- 

 ally darker color of the whole animal, including the horns as well 

 as the pelage, but especially in the color of the head, which, ex- 

 cept the muzzle, is wholly dark brown, without the white face- 

 spot or any appreciable admixture of gray on the front and sides 

 of the head or on the ears. (Plates XII-XVII.) In a single old 

 female, out of six old males and two old females examined, there 



are a few gray hairs on the 

 face, but they are not notice- 

 able except on close inspec- 

 tion ; on parting the hairs 

 with the hand a sparse 

 sprinkling of such hairs can 

 be seen. The other seven 

 show no white or gray on any 

 part of the head or ears. The 

 difference in the size and 

 form of the basal portion of 

 the horns is a further import- 

 ant differentiation of the two 

 forms. (Figs. 1-5.) The 



Fig. 5. Qvito wardi, 3 ad. Independence Bay, hoofs also differ greatly in 



d. l Headpiece' from Peary's 'Northward t u t forme ac cVirwn in 



Great Ice? Vol. I, 1898, p. 329, through the ttie tw lOmiS as Shown in 

 of the Frederick A. Stokes Company, pub- <.}, oprn 



Greenland. 



over the 



kindness of the r . , - <., oprnmrmn vna 



Ushers. The first illustration of the skull of Ovibos " 



wardi ever published. (Figs. 6 and 7) and in the 



table of measurements, the front of the hoof being much longer 

 and more incurved in O. moschatus than in O. wardi. 



The geographical relations of the two are not clear, but it 

 seems probable that O. wardi is the form inhabiting the numer- 

 ous islands, more or less joined by ice in winter, situated east 

 and north of Belcher Channel and Jones Sound, while O. moschatus 

 is confined mainly to the Barren Grounds, with formerly, probably, 

 continuous distribution westward across Alaska. The eastern 

 limit of O. moschatus cannot at present be accurately denned. 

 The Melville Island specimens obtained by Parry on his first 

 voyage in 1820, evidently represent typically the Barren Ground 

 form, as shown by Parry's and Gray's figures. 1 Whether or not 



1821, p. 257, and plate xvii, facing p. 256. Also Gray, Cat. 

 " s. i and 2, giving two views of 



1 See Parry's Fiist Voyage, 1821, p. 257, and, plate xvi 

 Mamm. in Brit. Mus., Part III, 1852, p. 43, and pi. v., fig 

 skull of an old male, collected by Parry on Melville Island. 



