142 Bulletin American Museum of Natural History. [Vol. X.] 



EXPLANATION OF PLATE XL 



A, hind metapodials of Protyloptis pctersoni ; B, fore and hind metapodials 

 of Po'cbrotherhtm wilsoni ; C, fore and hind metapodials and head of humerus 

 of Po'cbrotheriiim labiatum ; D, same species from higher level ; E, fore and 

 hind metapodials and head of humerus of Gomphotherium sternbergi ; F, fore 

 and hind metapodials of Goniphotherittni cameloides ; G, fore and hind meta- 

 podials and head of humerus of Proca7)ielus occidentals ; H, head of humerus 

 of Auchenia latiia. 



