On the Birds of Paisandu, Uruguay. 275 



This bird seems to me to be a species of Chlorospingus. 

 Mr. Lawrence has kindly lent me his unique specimen. The 

 skin is apparently of the ordinary " Quito " make. 



C. flavo-virens is remarkable for its uniform olive plumage, 

 which is strongly fringed with yellow below. Its beak is 

 rather short and strong, so that it goes best among the typical 

 Clilorospingi, next to C. phcsocephalMS. In coloration there 

 is no species which much resembles it. 



8. BUARREMON SORDIDUS. 



Buarremon sordidus, Lawrence, Ann. Lye. N. Y. x, p. 138 

 (1874). 



The typical specimen of this species, which Mr. Lawrence 

 has kindly lent to me, is, I am quite convinced, only B. pal- 

 lidinuchus in immature plumage. 



9. Pyrgisoma albiceps. 



Buarremoti albiceps, Tacz. Orn. d. Per. ii. p. 533. 



This is, I think, after examining the typical specimen 

 kindly lent to me by the Warsaw Museum, not a Buarremoti, 

 but a species of Ground-Finch of the genus Pyrgisoma, as 

 shown by its large feet and short wings. I may add that 

 after again examining specimens of the Pipilo mystacalis of 

 Taczanowski (P. Z. S. 1874, p. 521), a bird which I subse- 

 quently described as Buarremon nationi (P. Z. S. 1881, p. 485), 

 I have come to the conclusion that M. Taczanowski was more 

 nearly right than I was as to the proper classification of this 

 bird, and that it is, in fact, a Ground-Finch, and not a 

 Tanager. But I should be inclined to place it rather in 

 Pyrgisoma, near to P. rubricatum and its allies, instead of 

 Pipilo. 



XXVI. — Notes on the Birds of Paisandu, Republic of Uruguay. 

 By Ernest Gibson, F.Z.S. (Communicated by J. J. 

 Dalgleish*.) 



The district of Paisandu is very much broken by irregular 

 hill and dale, the former of very little height, and of such a 



* [These notes are the results of observations made by Mr. Gibson 



u2 



