418 Mr. J, H. Gurney's Notes on 



tioned belonged to the Homrai; or Great HornbiU, with the flat 

 casque, curved upwards anteriorly, that bird should stand as 

 the B. bicornis, Linn., of which name B. cavatus, Shaw, is a 

 synonym. The descriptions given by Brisson and Linnaeus 

 of the plumage of the body, not answering to any known 

 species, cannot receive any consideration in connexion with 

 B. bicornis. That of Linnaeus applies best to Buceros {An- 

 thracoceros) malabaricus of Gmelin ; but the description of 

 the casque shows that this species was not intended. 



XXXVII. — Notes on a 'Catalogue of the Accipitres in the 

 British Musemn/ by U. Bowdler Sharpe (1874). By J. H. 



GURNEY. 



[Continued from p. 333.] 



In my last paper I alluded {antea, p. 332) to the occurrence 

 of Aquila clanga in Spain. Since then the Norwich Museum 

 has been enriched by the gift, from Lieut. -Col. L. H. Irby, 

 of an adult male of that species, killed near Seville on the 

 11th February last, which I take this opportunity of re- 

 cording*. 



The typical Eagles (those of the genera Uroaetus and 

 Aquila) to which I am disposed to limit the term " Aquilinse," 

 pass by an almost imperceptible gradation into the next group, 

 the Hawk-Eagles, for which the designation of Thrasaetinse,^' 

 suggested by the late Mr. Blythf^ may, I think, be con- 

 veniently adopted. 



The Hawk-Eagles are all, more or less, distinguished from 

 the typical Aquilinse, as above restricted, by one or more of 

 the following peculiarities, all of which seem to me to be in- 

 dicative of Asturine affinities, viz. wings proportionally 

 shorter, tail relatively longer, very large and generally much 



* Col. Irby informs me that auotlier Seville specimen of A. clanya, a 

 nearly adult bird, is in the collection of Lord Lilford. 



t Vide ' Catalogue of the Birds in the Muaeiun of the Asiatic Society,' 

 p. 24. 



