"224: RLNOTIIEKlirjI. 



water and become lost, others may yet be discovered by continuing 

 the excavations in the bank during a period of low water. 



The few bones that have been found are however sufficient to fur- 

 nish reasonable grounds for the opinion that the animal to which they 

 belonged was the Dinotherium Magnum. 



The pelvic bone is of immense size, its general conformation differs 

 from that of any other pelvic bone described by comparative anatomists, 

 and is sufficient to prove that it did not belong either to the Mastodon 

 or the Megatherium, to both of which it bears some analogy. The pel- 

 vis of the Megatherium is of great solidity and the immense bones of 

 the ilium are set nearly at right angles to the vertebra. The fossil ili- 

 um, judging from its size and general configuration, could not have sus- 

 tained this position to the vertebra, for in this case the acetabula instead 

 of being on the under part of the pelvis, as they evidently were, would 

 have been upon its side in a position the most unfavorable for strength 

 and facility of locomotion. The position of the acetabulum is also suf- 

 ficient to indicate that the animal was not a Mammoth or a Mastodon, 

 for in both of these the cavity for the articulation of the former is situ- 

 ated on the side of the pelvis, as in the horse, and not beneath as in the 

 Megatherium and Dinotherium. 



The phalanges or bones of the toes were found near the pelvic bone, 

 to the magnitude of which their sizes are proportioned : those found ap- 

 pear to have belonged to the same foot. 



Without entering into any details in reference to the configuration 

 of these bones, it is sufficient to state that their general appearance in- 

 dicates that the foot was designed for digging in the earth. 



Several pieces of the tusk were also found which from the general 

 appearance of the fragments must liave been very much curved. 



From all the facts of the case it appears that the fossil bones belong 

 to the Dinotherium Magnum, an animal whose remains have never be- 

 fore been found in alluvial formation. 



The concluding remarks of Dr. Casselberry are as follows : 



''The lower jaw of the Dinotherium is nearly four feet long, loaded 

 ■with heavy tusks at its extremity. This structure would have been cum- 

 brous and inconvenient to an animal living on dry land. No such dis- 

 advantages would have attended this structure in a large animal destined 

 to live in water : and the aquatic habits of the family of Tapirs, to 

 which the Dinotherium was most nearly allied, render it probable that, 

 like them, it was an inhabitant of fresh water lakes and rivers. To an 

 animal of such habits the weight of the tBsks sustained in water, would 

 have been no source of inconvenience. The tusks of the Dinotherium 



