MEGATHEEIID-^. 87 



19953 f. The slightly imperfect left ramus of the mandible, showing 

 the aveoli of the first three teeth and the broken base of 

 the last tooth; from Lujan. Par chased, 1846. 



M. 3580. Casts of nine teeth. The originals of these specimens 



were collected by Sir W. Parish from the Rio Salado, and 



are preserved in the Museum of the Eoyal College of 



Surgeons (Nos. 3447-3455). 



Presented by the Council of the Payed College of Surgeons, 1834. 



19953 a. The superior portion of the first left upper tooth ; from 

 Lujan. Purchased, 1846. 



19953b. Three imperfect specimens of lower teeth; from Lujan. 



Purchased, 1846. 



19953 C. The summit of a small tooth ; from Lujan. 



Purchased, 1846. 



43231. Three imperfect teeth ; from Buenos Ayres. 



Presented by Senor L. J. Fontana, 1871. 



40820. The fourth right lower tooth ; from Buenos Ayres. 



Presented by G . Falconer , Esq., 1867. 



40161. Two fragments of the right and left scapula ; from Buenos 

 Ayres. Purchased, 1866. 



19953 d. The right humerus ; from Lujan. Purchased, 184:6. 



19953 e. The left humerus ; from Lujan. This specimen, from 



(Fig.) which the cast in the skeleton was taken, is figured by 



Owen, op. cit. pi. xix. Purchased, 1846. 



39393. The right humerus ; from the Pleistocene of the Rio Negro, 

 Lruguay. Presented by D. A. Stoddart, Esq., 1865. 



43232. The left radius ; from Buenos Ayres. 



Presented by Senor L. J. Fontana, Esq., 1871. 



19953 g. The right radius : from Lujan. Pigurcd by Owen (re- 

 {Fig.) versed), ojn. cit. pi. xx. figs. 4^6. Purchased, 1846. 



19953 h. The right radius ; from Lujan. Purchased, 1846. 



40489. The right ulna, wanting the distal extremity ; from Uruguay. 

 Presented by W. G. Lettsom, Esq., 1867. 



19953 i. The left ulna ; from Lujan. Tliis is apparently the speci- 

 {Fig.) men figured by Owen, op. cit. pi. xx. figs. 1-3. 



Purchased, 1846. 



