28 PLEISTOCENE MAMMALIA. 



dant in the vast unexplored stores of remains in the frozen gravel of the Tundras, and 

 especially at Sviatoi Ness. Its rarity would imply that its head-quarters were in some 

 district to the north and east of France and Germany in the Pleistocene period, and that it 

 only inhabited the districts in which it is found in an unusually severe season, which would 

 drive it from its usual haunts. We have thus traced the Ovibos moschatus far to the east 

 and south of its present habitat. It coexisted with the Mammoth and the Reindeer in 

 Eschscholtz Bay, and with that animal and the Tichorhine Rhinoceros it ranged 

 throughout Siberia, Germany, and as far south as the valley of the Avon in Somer- 

 setshire and Perigord in France, or more than 15° south of its present southern limit in 

 America. 



