1872.] lamellirostres of the argentine republic. 367 



5. Cairina. 



10. Cairina moschata auct. ; Burm. Reise, ii. p. 514. 



This large Duck I have seen only in the eastern and north-eastern 

 parts of the country, near the river Parana, and occasionally from 

 Santa Fe and Tucuman ; but I have never observed it in the market 

 at Buenos Ayres. 



6. Dendrocygna. 



11. Dendrocygna fulva auct. ; Burm. Reise, ii. p. 514. 



12. Dendrocygna viduata auct. ; Burm. I. c. p. 515. 



The range of both these birds extends from Buenos Ayres to 

 Tucuman ; and they are nowhere rare. They are often brought to 

 the market of Buenos Ayres, where I have frequently purchased 

 specimens of them. 



The second species is generally seen in the evening ; and during 

 the night its presence may be known by its peculiar cry while flying 

 over the town in flocks, bird answering to bird, as has been already 

 observed by Azara. This species is very common in Paraguay. 



7. Dafila. 



13. Dafila bahamensis (Linn.) ; Burm. Reise, ii. p. 515. 



In the same parts of this country, but not in the west. Often 

 brought to the market in Buenos Ayres. 



14. Dafila spinicauda (Vieill.) ; Burm. Reise, ii. p. 515; 

 Sclater, Proc. Zool. Soc. 1870, p. 666, pi. 38. 



This Duck is found in all the southern provinces fromBuenos Ayres 

 to Mendoza, and is nowhere rare. As the eastern and western 

 specimens are somewhat different in colour, I thought of separating 

 the species into two, giving to the western form the name of oxyura, 

 after Meyen (cf. Reise, ii. p. 515); but as I have not any western 

 individuals for examination, I will accept the opinion of Messrs. 

 Sclater and Salvin (Proc. Zool. Soc. 1869, p. 157) that these two 

 may be the same. The specimens from Buenos Ayres are somewhat 

 more brilliant in colour, the edges of the tectrices and secondary re- 

 miges being yellow, and not white. This Duck was first described by 

 Azara, who obtained specimens at Buenos Ayres (Apunt. iii. p. 421), 

 and then by Meyen, who brought it from Chili, where the bird is very 

 common. 



8. QUERQUEDULA. 



14. Querquedula flavirostris (Vieill.) ; Burm. Reise, ii. 

 p. 516. 



15. Querquedula maculirostris (Licht.) ; Burm. ibid. 



16. Querquedula torquata (Vieill.); Azara, Apunt. iii. 

 p. 452 (male) ; ibid. no. 352, "Anas leucophrys, Vieill." (female). 



This beautiful Duck is rare, and was brought to me by a friend 



