2o6 Bulletin America?i Museum of Natural History. [Vol. XIV, 



crosses the ulna completely and rests upon the enlarged flattened 

 scapho-lunar, which also presents a narrower face for the ulna ; 

 as in Diplodocus this carpal is much thinner in front than behind. 



Fig. 6. Hind limbs of Sauropoda, posterior view. A. Morosaurus^ Amer. 

 Mus. Coll. No. 461 ; B. Diplodocus, Amer. iMus. Coll. No. 251 ; C. Broniosaurus, 

 Amer. Mus. Coll. No. 353. All from the Bone Cabin Quarry. 2^, nat. size. 



The cuneiform is a smaller bone, oval and flattened as seen from 

 above, cyclindrical in anterior view, with an irregular projection 

 on the lower face. The three median metacarpals are long and 



