4 



Mr. Alfred R. Wallace on the 



distinctive features of those groups. Haliastur, however, seems 

 much better placed among the Kites, vv^ith which it agrees in 

 all essential characters. Schlegel places Jquila gurneyi as a 

 Spizaetus among his Astures, and thus groups one of the most 

 massive of the Eagles in the same subfamily with the most 

 delicate little Sparrow-Hawks, such as Accipiter virgatus and 

 A. rhodogaster. 



In the Owls the confusion and uncertainty is still greater, as 

 will be seen by the following series of classifications. 



Bonaparte (Consp. Av. 1850). 

 Surniinse = /Swrwmte (pt.) and Bubonince (G. R. Gray). 

 Ululinae = Otus, Scops, Bubo, Syrnium, Nyctale (Kaup) ; 



= Bubonince, Syrniin(P, and Surnince (pt.) (G.R. Gray). 

 Striginse =Strigin(2 (G. R. Gray) =Strix (Kaup). 



Kaup (Contrib. to Orn. 1852*). 

 ' Glaucidium. 



' Scops. 

 Otus. 

 { Bubo. 

 I Strix. 

 1 Syrnium. 



Nyctale. 

 Surniinse . . \ Athene. Striginse . 



Swnia. 

 leraglaux. 



G. R. Gray (Cat. Gen. B. 1855). 

 Surninse =Surniin(s (Kaup). 

 Buboninse = ^coj9S, Bubo (Kaup). 

 Syrniinse =Otus, Syrnum (Kaup). 

 Striginse = Strix (Kaup). 



Schlegel (Mus. des Pays-Bas, 1862). 



{Otus. 1 Strix. 



Bubo. Striges I Uhda = Syrnium, Nyctale, Surnia (Kaup). 

 Scops. { NoctHa= Glaucidiimi, Athene, leraylaux (Kaup). 



Jerdon (Birds of India, 1862). 

 Striginse =Strigin(E (G. R. Gray) = Strix (Kaup). 

 Syrniinse =^ Syrnium (Kaup) . 

 Asioninse = Otus (Kaup) . 



Buboninsess-Bitiomnce (G. R. Gray) = Scops, Bubo (Kaup). 

 Surniinse = Surniina (Kaup and G. R. Gray) . 



* Also printed at greater length in the Transactions of the Zoological 

 Society, vol. iv. 



