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XX. Description of a new Species of the Genus Bateo from Mexico. 

 By Philip Lutley Sclater, M.A., F.L.8., ^c. 



Read July 13. 1858. 



iVlR. J. H. GURNEY has requested my attention to a specimen of a species of the 

 genus Buteo belonging to the Norwich Museum, which I now exhibit. It was formerly 

 in the collection of this Society, and was originally received along with other birds from 

 the State of Tamauhpas, in Northern Mexico, by Mr. Gould. I have never seen any 

 other bird quite resembUng it — the nearest ally known to me being the Buteo cdbono- 

 tatus of G. R. Gray, from which, however, on comparison, it appears to be perfectly 

 distinct. I agree with Mr. Gurney in considering it as probably undescribed ; and in 

 allusion to its nearly uniform sooty-black plumage, propose to characterize it as 



Buteo fuliginosus, sp. nov. (PI. LXII.) 



Saturate fuliginoso-brunneus unicolor ; capite, dorso medio et alarum primariis extus 

 paulo nigricantioribus : primariorum et secundariorum vexillis internis suhtus albis, 

 sex aut septem vittis nigris transversim notatis ; tecfricibus alarum inferioribus nigro- 

 brunneis : cauda supra fuligino so -brunnea, vittis quinque aut sex nigris obsolete trans- 

 fasciata et nigra late terminata ; cauda subtus alba et vittis dilutioribus : rostro 

 nigro, pedibus flavis. 



Long, tota 15'5, alse 120, caudse 6'5, tarsi 2'6. 



Hab. In Mexico Boreali. 



