258 LLOYD'S NATURAL HISTORY. 



ties. Thus Mr. Ogilvie Grant writes : " Their general 

 structure presents many striking Columbine characters, as in 

 the vocal organs, pterygoid bones, and the presence of basi- 

 pterygoid processes (bp) in the skull (fig.i), the shoulder-girdle, 



Fig. I. Skull of Pf erodes exustus. Fig. 2. Skull of P. exitstus. 



sternum, and especially the great deltoid process of the humerus, 

 or upper-wing bone; but the digestive organs are like those 

 of the True Game-Birds." 



Fig. 3. Sternum of Pf erodes alchalus. 



