365 



the hippopotamus. Compared with the mastodon of Ohio, these teeth 

 are so narrow, as certainly to warrant the distinguishing of the animal to 

 which they belong, as the mastodon with narrow teeth. 



A tooth from Saxony, formerly sent to Bernard de Jussieu, and 

 another from Montabusard, were found to correspond in their figures and 

 proportions with the preceding species, but were exactly one third less. 

 Knowing no instance of such a difference of size in any species of wild 

 animals, and as this difference could not depend on age, since the teeth 

 grow no more after being once formed, M. Cuvier had no hesitation in 

 considering these as of a distinct species that which he has named the 

 small mastodon. 



M. de Humbold found a tooth near to the volcano of Imbaburra, in 

 the kingdom of Quito, at the height of 1200 toises. It is considerably 

 decomposed, and partly coated with volcanic cinders. The same cele- 

 brated traveller found another of this species on the cordilier of Chi- 

 quitos, between Chicas and Tarija, near Santa-Crux de la Sierra, in 15 

 deg. S. L. M. Alonzo also furnished M. Cuvier with a drawing of ano- 

 ther tooth from the same province of Chiquitos. These teeth all appear 

 to have belonged to the same species of animal. Their characters appear 

 to be that of being of a square form, and having the same proportions 

 with the teeth with six points belonging to the mastodon of the Ohio ; 

 and so resembling them, that they might be mistaken for them, were 

 it not for the club-like figures which their points assume, and which can- 

 not be mistaken for the lozenge-like figures observable in the teeth of the 

 latter animal. The teeth thus characterized he distinguishes as -the mas- 

 todon of the Cordilleras. 



To M. de Humbold we are also indebted for another tooth, evidently 

 of another species. This tooth, like those of the preceding species, is 

 square, but is a third less in size ; bearing the same proportion to those 

 of the preceding species as the teeth from Saxony and Montabusard bear 

 to the species with narrow teeth from Simorre, &c. This tooth was 



