SPREADING OF THE MAMMALIA. 55 



the 73d degree. The American Buffalo is met with 

 in the warmer part of North America. Buffaloes are 

 found, in great numbers, in the warmer countries of 

 the Temperate and Warm Zones : they, however, 

 prefer shadowy forests, are fond of wallowing in 

 marshes, and prosper, in temperate countries, equal 

 to domestic animals : they therefore are not exclu- 

 sively natives of the Torrid Zone. Agreeably to 

 these observations, the region within the 40th and 

 45th degree of Northern Latitude has been repre- 

 sented as the native country of these animals. 



10. The Genera of Sheep and Goats (Ovis & Copra) 

 also extend, in some species, up to the snow-line. The 

 Wild Sheep (Ovis Ammori) inhabit the lofty moun- 

 tains of Greece, Sardinia, and Barbary ; the Argali, 

 according to Gmelin, the mountains of Siberia, from 

 Irtisch to Kamtchatka ; the Caucasian Goat, the 

 Caucasus. The Ibex lives in the highest snowy 

 mountains of Salzburg and the Pyrennees ; and, 

 according to Brown, in Jamaica. The astonishing 

 agility which these animals display in climbing, 

 indicates the regions to which they belong. The 

 common Sheep occurs, as a domestic animal, on the 

 shores of the Senegal, and in Iceland; but, accord- 

 ing to Cranz, does not thrive in Greenland. The 

 African Sheep (Ovis Guineensis) inhabits the tracts 



