Classification of the Striges. 



343 



fused at their lower extremities and form a triangular piece. 

 The first bronchial semiring is a stout arched bar, Avhich is 



Fio-. 0. 



Syriux of Buho maculosus. 



entirely ossified, and to this is attached the syriiigeal muscle ; 

 the remaining bronchial semirings are cartilaginous. 



The syringes of Bubo {iig.6),Syrnium, nndAsio come nearest 



Fis:. 7. 



Syrinx of Scops leucutis. 



to that of Strix : in all of these the attachment of the syringeal 

 muscles is apparently tlie same as in Strix ; but the fact that 



