347 
Paraguay , Bolivia , and Southern Brazil . 
219. Querquedula versicolor. 
Querquedula versicolor Arg. Orn. ii. p. 131; Salvad. Cat. 
B. xxvii. p. 291. 
a. S ad. Los Ynglases, Ajo. Sept. 20, 1908. 
b. S ad. „ „ Jan. 27, 1909. 
c. d. c?&$ ad. „ „ Mar. 8-30, 1909. 
Irides dark brown ; bill, upper mandible yellow at base, 
apical half and cutting-edge electric blue, culmen and tip 
black ; lower mandible electric blue, nail black, soft skin 
blackish; legs and toes ashy. 
The March female is much worn and starting to moult; 
the male, on the other hand, is in perfect plumage. 
220. Querquedula brasiliensis. 
Querquedula brasiliensis Arg. Orn. ii. p. 133. 
Nettion brasiliense Salvad. Cat. B. xxvii. p. 266. 
a, b. S' ? ad. Medano, Paraguay. Sept. 17, 1909. 
S '. Irides brown; bill dull dark crimson-red; legs and 
toes rich tomato-red. 
$ . Irides brown; bill dark olive-brown ; legs and toes 
not nearly so bright as in male. 
This Duck was commonly observed throughout Paraguay 
and Brazil, usually in pairs ; it has a low swift flight with 
the wings depressed, and looks exceedingly pretty as the 
sunlight catches the glossy wings. 
221. Dafila spinicauda. 
Dafila spinicauda Arg. Orn. ii. p. 134; Salvad. Cat. B. 
xxvii. p. 279. 
a, A S & ? yg- Cape San Antonio. Dec. 21, 1908. 
c, d. (? ? ad. & yg. Los Ynglases, Ajo. April 6, 1909. 
e. ? ad. Los Ynglases, Ajo. April 13, 1909. 
In the pair of adults before me I can see no difference in 
general, including the top of the head, except that the 
female has the wing-speculum dull bronzy brown mottled 
with brown. 
Irides dark brown ; bill black and greenish yellow, 
brightest near gape; legs and toes olive-grey. 
