3IO THE SHEEP AND ITS COUSINS 



the New Siberian Islands, and Northern Europe, 

 for which the names O. nivicola fossilis^ and O. 

 montana fossilis ^ have been proposed. The O. 

 niamillaris of Hildreth,' from the Pleistocene of 

 North America, may undoubtedly be assigned to 

 the same group, and the same is probably the case 

 with a horn-core from the same horizon and area 

 originally described by Professor E. D. Cope as a 

 bison under the name of Bos scaphoceras, but sub- 

 sequently considered by Dr. F. A. Lucas * to more 

 probably belong to a sheep. 



Lastly, it is considered that certain remains from 

 the surperficial deposits of the south of France de- 

 scribed under the names of O. tragelaphiis fossilisf 

 O. magna,^ and O. primceva ' represent sheep akin 

 to the modern arui of North Africa. 



As already indicated, not one of these extinct 

 sheep throws a single ray of light on the origin and 

 relationship of the group. 



' Tschersky, Mdin. Acad. Set. S/. Pitersburg, vol. xl. p. 187, 1892. 

 ' Brandt and Woldrich, ibid., 1887, p. iii. 

 ' Amer.Journ. Sci., vol. xxxi. p. 82, 1837. 



* Proc. U.S. Nation. Mus.^ vol. xxi. p. 756, 1899. 



* M. de Serres, Oss./oss. Cavemes, 1848, p. 149. 



* Garrigou, in the work cited in the next note. 



' Gervais, Zool. et PaUontologie Frangaises, p. 76, Paris, 1852. 



