3G6 



Annals of the Carnegie Museum. 



of the radius and ulna display different degrees of rugosity. The 

 I)Ostero internal portions of each are extremely rugose and deeply 



Fig. 8. Posterior view of right ulna, Fig. 9. Anterior view of riglit ulna, 



about one-tenth natural size. (No. 563.) about one-tenth natural size. (No. 563.) 



pitted, while toward the center the surface becomes less indented and 

 the external one half of each presents a polished surface marked with 

 shallow corrugations. 



Principal Dimensions of Radius and Ulna. 



755 "I'll- 2955 ni. 



Greatest length of radius, 



Transverse diameter of radius at distal end. 

 Fore and aft " " " " " " 



Transeverse " " " "proximal " 



Fore and aft " " " " " " 



Transverse " " " " middle of shaft, 



■Greatest length of ulna, 

 Transverse diameter of ulna at distal end, 

 " " i. a a proximal " 



Fore and aft diameter at summit of anconeal spine, 



T/ic Carpus. — There was but one carpal bone found with the present 

 limb and foot, that marked X. in plate XIX. This agrees very closely 



