1 2 



12 ' Rhinoceroides Alleghaniensis, 



Inch. lOths. Inch. lOths 



Shortest diameter in height of the superior ? 2 17 



maxillary bone, anterior to the molars, ) 

 Length of the single incisor, 2 3 



Do. of the 2 incisors, 2 3 



Height of the same, 7 8 



^Distance from the anterior extremity of bone 



to the curve upwards, to form the anterior ^6 5 5 



nares, 



Length of the cutting edge of the anterior 



incisor of fossil, 



Do do. of the posterior do. do. 1 1 



Total length of the fossil fragment, 7 6 



" I find nothing in the works of Baron Cuvier, or any other na- 

 turalist, which indicates any knowledge of this animal in Europe ; 

 and it is, as far as I am apprised, the first specimen of the kind 

 discovered in America. Notwithstanding the affinity, which the 

 agreement of these comparative dimensions appears to establish 

 between it and the genus rhinoceros, still, the great space be- 

 tween the intermaxillary suture, (very distinct in the fossil,) and 

 the place of the first molar, being in the fossil twice as much as 

 in the recent R. Indicus : also the occupation by two incisors in 

 the fossil, of the space allotted to one incisor in the R. Indicus, 

 are conspicuous characters, which establish it as a new genus of 

 the order Pachydermata. 



"I forbear to ground any argument for a great antiquity to this 

 fossil, from its mineral structure ; and I leave to more experienced 

 naturalists to determine, whether its period ought to be referred 

 nearer to the Palaeotherium, than to the elephant; the last of 

 which animals, has left many remains here. 



" Unwilling to designate it by any fanciful or philonymic ap- 

 pellation, and thinking that by some naturalists it may be judged 

 to stand in the same relation to the genus rhinoceros, that the 

 elephant does to the mastodon, I have provisionally named it 

 Rhinoceroides AUeghaniensis, by which appellation I have at- 

 tempted to convey in the simplest terms, its con-generic relation, 

 and its territorial habitat. I remain, my dear sir, most faithfully 

 yours, G. W. Featherstonhaugh. 



Philadelphia, April 3, 183L 



/ 



