138 MESSRS. SCLATER AND SALVIN [Feb. 13, 



public, about twelve miles from the city of Buenos Ayres, by one 

 of their correspondents, Mr. William H. Hudson. We have had great 

 pleasure in determining the species, a list of which is herewith 

 given. Nearly the whole of them are included in the list of the 

 birds of the "Argentine Republic given in the second volume of 

 Burmeister's excellent ' Eeise durch die La-Plata-Staateu ;' but there 

 are many points which call for remarks. 



The following is a complete list of the species. The nomen- 

 clature used is generally that of Sclater's ' American Catalogue ;' 

 but we have also always referred to Burmeister's work above men- 

 tioned, which is the best guide to the ornithology of this district. 



The number of skins submitted to our inspection is 265, refer- 

 able to 96 species. Burmeister's list of the birds of the whole 

 Argentine Republic includes 263 species. 



Among the 96 species represented in the present collection the 

 following 14 are not included in Burmeister's list : — 



Geothlypis velata. Picus mixtus. 



Molothrus rnfo-axiUaris. Circus macrojitenis. 



Si/nal/axis maluroides. Culumba picazuro. 



anthoides. jEgialitis falMandica. 



Limnornis curvirostris. Tringa honapartii. 



Myiothei'etes rujiventris. '— bairdi. 



Myiob ius ncevius, Bu torides cyanurus. 



It is most important that this district should be thoroughly 

 worked out, in order that the whole of Azara's species may be re- 

 identified. We trust, therefore, that Mr. Hudson will continue his 

 collections in this interesting locality, and that we may again have 

 the pleasure of calling the Society's attention to this subject. 



1, TURDUS LEUCOMEI>AS. 



Zorzal obscuro y bianco, Azara, Apunt. i. p. 341. 



Turdus leucomelas, Vieill. N. D. xx. p. 226, et E. M. 644. 



Turdus cj'otopezus, Burm. La-Plata-Reise, ii. p.474. 



Turdus ammtrochalimts, Cab. Mus. Hein. p. 568 ; Scl. et Salv, 

 P. Z. S. 1866, p. 177. 



The receipt of this species from this locality, where it is stated 

 to be "resident," appears to settle the question of its being Azara's 

 " Zoi'zal obscitro y bianco." It therefore becomes entitled to bear 

 the name leucomelas of Vieillot. AVe have compared Mr. Hudson's 

 specimens with a typical example of T. amaurochalinus, and find 

 them identical. 



This Thrush has a wide range in South America. Natterer 

 collected examples at Ypanema in Brazil, one of which is now in 

 the Bremen Museum. Sclater's collection contains specimens from 

 other parts of Brazil, Bolivia, and Cayenne. Bartlett has recently 

 sent specimens from the Ucayali, as we have already noted. 



2. Turdus rufiventris (Vieill.) ; Burm. I. c. p. 474. 



