160 MESSRS. SCLATER AND SALVIN ON [Mar. 11, 
8. HAPALOCERCUS FLAVIVENTRIS (Lafr. et D’Orb.); Burm. La 
Plata-Reise, ii. p. 456. 
Tachuri vientre amarillo, Azara, Apunt. ii. p. 89. no. 171. 
One example obtained in November 1867 and marked as a 
“summer bird.” On comparing this with other specimens in Scla- 
ter’s collection, including a typical Chilian example of Arundinicola 
citreola, Landbeck (Wiegm. Arch. 1864, p. 58), we find them all 
identical*. The latter name may therefore be regarded as a synonym 
of Hapalocercus flaviventris. 
9. CERYLE AMERICANA (Linn.); Burm. l.c. p. 447. 
One skin of a female of this Kingfisher. 
10. Evanus Levucurus (Vieill.); Burm. Syst. Ueb. ii. p. 113. 
Alcon blanco, Azara, Apunt. i. p. 165. 
Two specimens. Not included in Burmeistet’s list. 
11. RostrHaAmus socraBitts (Viceill.). 
Gavilan de estero sociable, Azara, Apunt. i. p. 84. no. 16. 
R. hamatus, Burm. La Plata-Reise, ii. p. 435. 
One example of this species. 
12. ARAmus scoLopaceus (Vieill.); Burm. /. ¢. p. 504. 
Cardu, Azara, Apunt. iii. p. 202. no. 366. 
“Cardu”’ or “ Viuda loca.”,—W. H. H. 
13. QUERQUEDULA CYANOPTERA (Vieill.) ; Burm. J. ¢. p. 516. 
Pato alas azulas, Azara, Apunt. iii. p. 437. no. 434. 
‘© Pato chocolate.”—W. H. H. 
14. DENDRocyGNA vipvaTA (Linn.); Burm. J. c. p. 515. 
Pato cara blanca, Azara, Apunt. iii. p. 440. no. 435. 
We have likewise lately examined a small collection of birds made 
near Buenos Ayres by Mr. Haslehust of that city. Out of forty-five 
species represented in it, the following ten have not been yet sent by 
Mr. Hudson :— 
1. VIREOSYLVIA CHIVI. 
Sylvia chivi, Vieill. N. D. xi. p.174, et E. M. 437, ex Azara, no. 152. 
Contramaestre gaviero, Apunt. ii. p. 34. 
V. chivi, Baird, Rev. A. B. p. 337. 
A single skin, which we are not able to separate from V. agilis 
of Brazil (V. virescens of Sclater’s American Catalogue). But put- 
ting aside virescens, which Prof. Baird, perhaps rightly, considers 
to be a synonym of V. olivacea, chivi is the oldest name for this 
bird. This species is not mentioned by Burmeister. 
* Of. Sclater’s remarks, P. Z. 8. 1867, p. 326. 
