Holland: Fossil Mammals. 231 



(No. 11032a). Judging from the size of these teeth, the animals, 

 which possessed them, were about the size of a zebra. 



Order EDENTATA. 

 Suborder XENARTHRA. 

 Family MEGATHERIID.F:. 

 Genus Megatherium Cuvier. 



There are a number of fragments, which are undoubtedly referable 

 to the genus Megatherium, and which in size, as well as in outline, 

 compare well with those of M. americanum Cuvier. 



These fragments have been cataloged as follows: 



1. First sternebra (manubrium) rather well preserved and of large 



size. (No. 11029a). 



2. Portion of atlas (?) (No. 11029&). 



3. Fragment of shaft of humerus (No. 11029c). 



4. Broken upper end of left ulna (No. Ii029(i). 



5. Nearly perfect metacarpal IV of left fore foot (No. Ii029£'). 



6. Piece of head of femur (No. 11029/). 



7. Distal end of femur (No. 11029^). 



8. Distal end of right tibia (No. 11029/?). 



9. Fairly well-preserved right astragalus (No. 11029^). 



10. Distal end of clavicle (No. 1 10297). 



11. Fragments of ribs (No. 11029^^). 



Whether these disjecta membra all belonged to one and the same 

 individual is open to grave question. It seems improbable. Whether 

 the fragments of ribs are also all referable to Megatherium may also 

 be disputed. The ribs, or what remains of them, are too much broken 

 and imperfect to permit of a positive decision. Some of the bits may 

 have belonged to other animals mentioned in this paper. 



Genus? sp.? 



Considerable time has been spent in the attempt to identify a 

 fragment of the right lower jaw of what evidently was a large ground- 

 sloth (No. 11028). It cannot well be referred to Megatheriuni on 

 account of the apparently relative shallowness of the ramus (although 

 on the lower side it has been broken and its exact depth is not definitely 

 ascertainable). A stronger reason for not placing the fragment in 

 Megatherium is the lack of the spout-shaped projection which occurs 



