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of Lombardy ; Peru ; the Field of Giants, near Santa- Fe, in Terra-firma; 

 and in the province of Chiquitos, in Paraguay; have teeth, which are 

 referable to this genus of animals, been found. Besides the teeth found 

 in these different parts, he obtained information respecting several others, 

 of which the places where they had been found were unknown : the 

 whole being so numerous, as to show that this race of animals had left a 

 considerable quantity of their remains. 



From the general form of these teeth, from bones being found with them 

 resembling those of the mastodon of the Ohio, and from their being reason 

 for supposing that they were accompanied by tusks, no doubt can be enter- 

 tained of their having belonged to this genus. But these teeth possess also 

 other specific characters, which sufficiently distinguish them from those of 

 the Ohio. The chief, and the most general of these, are, that the cones of 

 their crowns are more or less deeply grooved, that they are sometimes ter- 

 minated by several points; and that they sometimes are accompanied by 

 other smaller cones, placed on the sides, or in the intervals of the larger 

 cones. In consequence of this formation, as the crowns of these teeth 

 are worn down by mastication, small circles, and then three-lobed, or 

 club-like figures, appear where the points were, but not the lozenge- 

 formed figures which these parts assume in the animal of the Ohio. 

 From these club-like markings Daubenton, P. Camper, and M. Fau- 

 jas, have been disposed to consider these teeth as resembling those of 

 the hippopotamus: from which, however, they may be distinguished, 

 independent of their greater size, by their having six or ten of the club- 

 like markings; whilst, in the teeth of the hippopotamus, there are never 

 more than four. The distinguishing of these smaller teeth from each 

 other, was a task of much greater difficulty and labour, but has been 

 in a great measure accomplished by the assiduous investigations of M. 

 uvier. 



From these researches he has been enabled to distinguish five species 

 of this genus, which he thus designates: 1. The mastodon of the Ohio. 

 2. The mastodon with narrow teeth, found at Simorre and elsewhere. 



