6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL, I40 



Transverse breadth across condyles, 9.1, 9.1, 9.2, 9.2, 9.3, 9.3, 9.4, 9.4, 9.7, 9.9. 

 Femur : 



Length, 48.0, 48.6, 52.3, 52.3, 52.4. 



Transverse breadth through head, 11.6, 12.0, 12.2, 12.6, 12.8. 



Transverse breadth near center of shaft, 4.6, 4.7, 4.8, 4.9, 4.9, 5.0, 5.1, 5.3, 5.3, 

 5-3, 5-3, 5-4, 5-4, 5-4, 5-6, 5-6, 5-6. 



Transverse breadth through condyles, 11.2, 11.6, 12.0, 12.1, 12.5, 12.5, 12.6, 12.7, 

 12.8, 13.4. 

 Humerus : 



Length, 83.8, 85.6, 87.5, 88.7, 90.I, 90.2. 



Transverse diameter of proximal end, 19.3, 19.6, 19.7, 19.8, 19.8, 21.0. 



Transverse diameter near center of shaft, 6.6, 6.8, 6.9, 7.0, 7.1, "j.z, 7.4, 7.5, 7.5, 

 7-7- 



Transverse diameter through condyles, 13.3, 13.5, 13.6, 14.0, 14.4, 14.4, 14.4, 

 14.6. 

 Ulna: 



Length, 68.9, 74.5. 

 Carpometacarpus : 



Length, 53-6, 53-8, 54-2, 54-4, s8.o. 



Height through metacarpal I, 12.5, 12.7, 12.8, 12.8, 13.0, 13.2, 13.7. 



Length of intermetacarpal space, ■rj.'j, 28.7, 29.5, 31.9. 

 Coracoid : 



Length from head to internal distal angle, 47.9, 48.2, 49.8, 49.8, 49.9. 



Smallest transverse diameter of shaft, 5.0, 5.0, 5.0, 5.1, 5.1, 5.2, 5.2, 5.3, 5.3, 

 5.6, 5.6, 5.8, 6.0, 6.1. 



Family GRUIDAE, Cranes 

 BAEOPTERYX gen. nov. 



Characters. — Differs from Grus Pallas, 1766, in form of the bones 

 of the wing : Humerus with the head relatively narrower, the deltoid 

 crest reduced in length, with considerably restricted area for muscle 

 attachment ; distal end with the points for tendinal attachment much 

 weakened, and the processes in general relatively reduced in size ; 

 carpometacarpus with the bulk and strength found in modern Grus 

 canadensis (Linnaeus) , but length decidedly less ; ulna with points 

 for attachment of tendon and muscle reduced. 



The type is Baeopteryx latipcs sp. nov. 



BAEOPTERYX LATIPES sp. nov. 

 (PI. 2, figs. I, 2; pi. 3, figs. 1-3) 



Holotype. — U.S.N.M, No. 22505, right tarsometatarsus, from H. 

 Bernard Wilkinson Quarry, south and west of Coney Island, Hamil- 

 ton Parish, Bermuda. 



Characters. — Tarsometatarsus similar to that of modern Grus cana- 

 densis (Linnaeus), but relatively heavier; shorter than in the small 



