4 PASSEBES. 



The palate of a bird is termed segithognathous when the vomer 

 is broad and blunt and disconnected from, the maxillo-palatines, 

 which are separated from each other by a considerable interval. 

 The principal bones in the palate of a bird are shown in the 

 accompanying sketch of the skull of a Raven, which has the palate 

 segithognathous. 



may. 



Under view of the skull of a Raven, vo, vouier; r/ixp, roaxillo-palatine 

 process ; pa, palatine ; ptff, pterygoid ; q, quadrate ; b.sph, basi-sphenoid ; 

 sph.r, sphenoidal rostrum. 



The determination of a passerine bird, as before stated, rests on 

 the association together of the above two characters. 



