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4. On a Collection of Birds transmitted by Mr. H. W. 

 Bates from the Upper Amazon. By Philip Lutley 

 Sclater, M.A. 



Mr. S. Stevens has lately received a small but interesting collec- 

 tion of birds from Mr. H. W. Bates, now resident at Ega on the 

 Upper Amazon. Although many travellers aud collectors have 

 passed through this country, we are still without any detailed in- 

 formation concerning the general character of its ornithology. Those 

 into whose hands collections from new localities come, are in general 

 too prone to pick oat single objects and describe them as new, in- 

 stead of what is much more important in a scientific point of view, 

 giving an accurately determined catalogue of the whole of the spe- 

 cies. Such accounts are always useful — in the first place increas- 

 ing our knowledge of the facts of geographical distribution, and, 

 secondly, giving great assistance to future investigators who are 

 studying collections from the same quarter. The species trans- 

 mitted by Mr. Bates are the following. They are mostly from Ega 

 or from the Rio Javarri, the frontier stream of Peru and Brazil, but 

 the exact locality is in every case affixed. 



Mr. J. H. Gurney has determined the Accipitres in this collec- 

 tion. 



1. MoRPHNUS URTJBITINGA (Gm.). 



Rio Javarri. 



2. Morphnus schistaceus (Sund.). — F. ardesiacus, Licht. in 

 Mus. Berol. 



Rio Javarri. 



3. Buteo pennsylvanicus (Wils.). 

 Rio Javarri. 



4. Asturina magnirostris (Gm.). 

 Ega. 



5. Micrastur gilvicollis (Vieill.) . — Sparvius ffilvicollis,Viei[\. 

 Nouv. Diet. x. p. 323 ; Puch. R. Z. 1850, p. 91. — M. coneentricus, 

 auct. 



Rio Javarri. 



6. Harpagus diodon (Temm.). 

 Rio Javarri. 



7. Scops ? 



Ega. 



8. Trogon melanurus, Sw. 

 Ega and Rio Javarri, $ et ? . 



9. Bucco macrodactylus (Spix) ; Sclater, Syn. Bucc. p. 14. 

 Rio Javarri. 



