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known ; but it appears to have been proportionally longer than that of 

 the elephant. 



Mr. Peale was the first who ascertained that this animal was provided 

 with tusks, by discovering the remains of a skull already mentioned, in 

 which the alveoli were evident. These tusks resemble those of the ele- 

 phant : they are inserted in the incisive bone, and are composed of ivory, 

 the grain of which shows curvilinear lozenges, enveloped by a substance, 

 which is not of the texture of ivory, but is formed of fibres converging 

 towards the centre; and which, though less hard than the enamel, seems 

 very nearly to resemble that substance. Mr. Peale had been disposed 

 to place the tusks of this animal in a situation the reverse of that which 

 they hold in the elephant; that is, with their convex part forwards, and 

 the point turning backwards ; but. no circumstance but the finding a skull, 

 with the tusks thus disposed, can authorize the placing of them different 

 from those of the elephant. 



From the circumstance already noticed, and from every considera- 

 tion of the subject, there appears to be no reason for doubting that this 

 animal had a trunk like the elephant, with whom it agrees in so many 

 respects. 



The form of the vertebrae agrees in general with that of the cor- 

 responding vertebras in the elephant. The ribs are formed different 

 from those of the elephant, being thin towards the cartilage, and thick 

 and strong towards the back. The six first pair are very strong in 

 comparison with the others, which also become, proportionally, very 

 short : which circumstance, taken with the depression of the pelvis, shows 

 that the belly was less voluminous in this animal than in the elephant. 



The scapula appears to possess the characters of the scapula of the 

 elephant, and particularly the recurrent apophysis peculiar to this genus, 

 and to the rosores (rongeurs). The scapula seems to be narrower than 

 .even that of the African elephant, and to have the recurrent apophysis 

 .placed higher than in the Asiatic elephant. The length of the scapula 

 is three feet and one inch. Mr. Peale describes the acromion as being 



