116 



COMPARATIVE OSTEOLOGY. 



Fia. 36. 

 Skeleton of a Bird, o, Radius and Ulna ; h. Dorsal vertebrae : c, Sacrum 

 and Pelvis ; g, Ploughshare bone ; k, Tibia ; i. Metatarsus : d, Furculum ; 

 e, carina of the Sternnm; /, Distal phalanx of pectoral limb. 



Sternum of a Bird. A, Lateral aspect: B, Inferior aspect; r, Rostrum ; 

 c.p. Costal process; pl.o, I'leurosteon ; c, Carina; in.x, Middle Xiphoid, process^ 



