176 MESSRS. SCLATER AND SALVIN ON BIRDS [Mar. 27, 



Peruana.' That the series of hirds given by Tsehudi as met with 

 within the limits of Peru is not very complete, is sufficiently mani- 

 fest from the fact that the whole number of species enumerated by 

 him is only 20*5 ; and herein are included a considerable number of 

 purely Andean species, besides species peculiar to the western coast- 

 fauna which are not met with in the eastern wood-region. Now 

 Mr. Bartlett's present collection already gives us materials for deter- 

 mining upwards of 250 different species ; and the probability is, the 

 whole avifauna of this rich region does not contain less than from 

 600 to 700 species. 



Several other zoological travellers have likewise made extensive 

 collections of bird-skins in various parts of the same district into 

 which Mr. Bartlett has recently penetrated ; but, unfortunately, no 

 complete account of the results of their labours has ever been given 

 to the public. The specimens obtained by Professor Poeppig in 

 the province of Maynas remain, we believe, still unworked at in the 

 Leipsic Museum. About the year 1846 the French travellers, MM. 

 Castelnau and Deville, descended the river Ucayali during their 

 journey from Lima to Para. A considerable series of birds was col- 

 lected on this occasion by the late M. Deville at Sarayacu and at 

 other localities in Eastern Peru visited by the expedition, but, pro- 

 bably owing to the latter naturalist's untimely death after his return 

 to Paris, it was never perfectly worked out. The " Partie Ornitho- 

 logique " of the Voyage of M. Castelnau, published by M. Des Murs 

 in 1855, contains only notices of some of the principal species, and is 

 in fact, as is stated by the author in his preface, mainly a compilation 

 of papers published by M. Deville, Prince Charles Bonaparte, and 

 Mr. Sclater on the same subject. 



In 1854, or thereabouts, Mr. Hawxwell, who has for many years 

 been a resident trader at various stations on the Upper Amazons, 

 transmitted to Mr. Gould a very fine and extensive collection of the 

 birds of this district. A portion of these were exhibited by Mr. 

 Gould to this Society at one of their Meetings in 1855*, and some 

 of the new species contained in it were described by Mr. Gould in 

 our ' Proceedings' t- It is much to be regretted that in this case, 

 again, the collection was dispersed without any complete account 

 being given of it. Mr. Hawxwell's specimens were obtained partly 

 on the Ucayali, and partly at Chamicurros, an Indian village situated 

 en a small tributary of the Huallaga. 



In 1857 Mr. Sclater published in our ' Proceedings' J a list of a 

 small collection of birds (embracing seventy-nine species) transmitted 

 by our well-known Amazonian traveller, Mr. II. W. Bates, from Ega. 

 Part of these were from Ega itself, but others had been obtained for 

 Mr. Bates by an assistant collector on the Rio Javarri. Amongst 

 them were a considerable number of species, which we recognize again 

 in the present collection. Other species obtained by Mr. Bartlett 



* See P. Z. S. 1855, p. 77. 



f Descriptions of eight new species of birds from South America (P. Z. S. 

 1855, p. 67). 



t P. Z. S. 1857, p. 2G1. 





