•jyO MESSRS. SCLATER AND SALVIN ON PERUVIAN BIRDS. [DcC. 12, 



Tscliudi has described a Thinocorus ingcB (Av. Consp. p. 387, et 

 Faun. Per. pp. 48, 279), from the highlands of Peru, which we be- 

 lieve to be the same as tlie present species. We are not able to 

 distinguish Mr. Whitely's skins from other examples from Chili 

 and La Plata. Tschudi lays stress upon the presence of a black 

 breast-band in his T. inycB ; but this band is also present in southern 

 specimens. He also states that the white throat is peculiar to T. 

 (Torbignyanus; but this is also present in one of Mr. Whitely's 

 specimens. 



55. Rallus RYTHiRHYNCHUS, A^ieill. 



Rallus rythirhynchus, Vieill. N. D. xiii. p. 521, et E. M. p. 1060 

 (ex Azara, sp. 372). 



Aramides rythorhynchus, Burm. La Plata- Reise, ii. p. 504. 



Rallus ccesius, Tsch. F. P. Aves, pp. 52, 301 ; Schlegel, Mus. d. 

 P.-B., Ralli, p. 8 ; Cassin, Gilliss's Exp. ii. p. 194. 



Rallus sanguinolentus, Sw. An. in Men. p. 335 ; Bridges, P. Z. S. 

 1843, p. 1 18 ; Darwin, Zool. Voy. Beagle, iii. p. 133 ; Sclater, P. Z. S. 

 1867, p. 333. 



Rallus bicolor, Guy, Faun. Chil. Aves, p. 434. 



Aramides zelebori, Pelzeln, Novara-Reise, Viig. p. 133(?). 



After comparing Mr. Whitely's example of this Rail with speci- 

 mens of Rallus sanguinolentus of Chili, and skins of the Rallus 

 rythirhynchus of Buenos Ayres, we have come to the conclusion 

 that they all belong to one rather variable species. The present 

 example is shorter-billed than Mr. Salvin's specimen from Leybold, 

 alluded to P. Z. S. 1867, p. 333. We suspect that Von Pelzeln's 

 A. zelebori is the same species from Southern Brazil. 



Rallus rythirhynchus must, however, be carefully distinguished 

 from R. nigricans (=72. ccesius), with which some authors have 

 confounded it, being at once recognizable by its incurved bill and 

 the red spot at the base of the lower mandible. 



56. Anas cristata (Gm.). 



Anas pyrrhogaster, Meyen, Nov. Act. xvi. Suppl. p. 119, t. 25. 

 Several skins of both sexes of this fine species, which are coloured 

 ahke, obtained at Salinas (alt. 14,000 feet). 



57. QuERaUEDULA OXYPTERA. 



Anas oxyptera, Meyen, Nov. Act. xvi. Suppl. p. 121, t. 26. 



Querquedula oxyptera, Tsch. F. P. pp. 55, 309. 



Qnerquedula angustirostris. Ph. et Landb. Wiegm. Arch. 1863, 

 ]). 202. 



One example from Salinas, the receipt of which has enabled us to 

 clear up the confusion alluded to by Sclater in his notes on Chilian 

 birds, anteii, p. 335. There are two closely allied species of Quer- 

 t/Hedula — the ])resent bird and Q. Jtavirostris (Vieill.). Messrs. 

 Phili])pi and Laudbeck have correctly })oiiited out the differences 

 between them ; but they have renamed the present species, not under- 



