172 JVbtices of Big -bone Lick, 



and figured by Dr. Harlan, in the Journal of the Academy of 

 Natural Sciences of Philadelphia. 



Two additional instances of the occurrence of these remains 

 were thus determined. 



Among those found by Mr. Finnell in 1830, are the following 

 portions of the skeleton of a megalonyx. 



A right lower maxillary bone, with four molar teeth.* One of 

 these, the anterior molar, is broken in the middle, and the 

 upper half lost. The bone itself is so much mutilated, that 

 barely enough remains to retain the teeth together, show- 

 ing the violent action it was exposed to, before being 

 buried. 



A detached molar tooth in very good preservation. ' It differs 

 from all the four in the above described jaw^, but not so 

 much but that we may easily believe it to be from the up- 

 per jaw of the same animal. 



A clavicle, probably of the same. 



A tibia, of the right side. 



In Mr. Bullock's letter to Mr. Featherstonhaugh, already 

 quoted, he gives a sketch of a bone, of which he obtained four 

 similar, during his late search. They are evidently the ungueal 

 phalanges of a megalonyx. 



In the description of the megalonyx by Dr. Harlan, above re- 

 ferred to, he has pointed out some differences in the teeth and 

 bones discovered in the United States, which he considers as in- 

 dicating two species of this genus. But the scanty materials we 

 up to this time possess, do not, in my opinion, authorise us to de- 

 cide upon specific characters. With respect to the teeth in 

 particular, it is evidently fallacious to rely too much upon slight 

 differences in them, inasmuch as we now see in the jaw lately 

 discovered, that no two of the four are precisely alike, and the 

 first and fourth, are, in fact, as dissimilar in the outline of their 

 crowns, as possible. 



Remains of the megalonyx have also been found in South 

 America. They were brought from Brazil, and placed in the 

 collection of Munich, by the travellers, Martins and Spix. A 

 late writer, f in the Annals of Philosophy, is therefore incorrect, 

 in saying that they have occurred only between the parallels of 



* Vide PI. 3, Vol. I. No. 2, Monthly American Journal of Geology, &c. 

 i Vid. Ferussac Bull. May 1829, p. 275. 



