GEOLOGICAL SOCIETY. 



63 



schists of Europe, and which were found on analysis to 

 contain animal matter. 



ORDER EDENTATA. 

 Genus Megatherium, Cuv. 

 M. Cuvieri, of authors. 



Cuv. Ossemens Fossilcs, 3d ed. vol. v. part 1st, p. 174, pi. 16 ; Megatherium, S. L. 

 Mitchell, Ann. of the Lyc. N. York, vol. i. p. 58, pi. 6, and Wm. Cooper, ut 

 supra, vol. i. p. 114, pi. 7, and vol. ii, p. 267 ; Harlan's Fauna Americana, p. 200> 

 Syn. Animal du Paraguay ; Animal incognita. 



Locality. In South America, Paraguay, Lima, and 

 in the vicinity of the river Luxan, three leagues south 

 west of Buenos Ayres, whence was obtained the skele- 

 ton nearly entire in the Madrid museum. In 1823, re- 

 mains of this fossil animal were first discovered in North 

 America. Specimens from Skidaway island, Georgia, 

 in the cabinet of the New York Lyceum ; a detailed 

 account of which will be found in the volume of the 

 Ann. of the Lyc. of N. York, above referred to, by the 

 late Dr. Mitchell, and by Wm. Cooper, Esq. 



Place in the Geological series. — The entire skeleton 

 in the Madrid museum was obtained on the borders of 

 the river Luxan, South America, in 1789. The bank 

 in which it occurred is only elevated about ten yards. 

 These remains occur most commonly in the great plains 

 of South America, particularly in the vicinity of Bue- 

 nos Ayres ; in that flat country, washed by the Panama 

 and its tributaries, the bones being found sunk in the 



