24 Ventral view of the sternum of the Bearded vulture or Lam- 

 mergeyer (Gypaetus barbatus). Reduced about one 

 fourth (approx.). See remarks under plate 5, figure 7 



25 Direct ventral view of the sternum of the White-headed eagle 

 (Haliaetus leucocephalu s ). See remarks under plate 

 7, figure 12 



26 Subdirect view of the ventral aspect of the sternum of 

 Helotarsus ecaudatus. This species belongs to a genus 

 that Dr R. Bowdler Sharpe places, in his Hand-List of Birds, next 

 to the genus Haliaetus, containing the White-headed eagle 

 (Haliaetus leucocephalus)of the United States. [Com- 

 pare with figure 25 of this plate] 



158 



