Paraguay^ Bolivia^ and Southern Brazil. 347 



219. QUERQUEDULA VERSICOLOR, 



Querquedula versicolor Arg. Orn. ii. p. 131 ; Salvad. Cat. 

 B. xxvii. p. 291. 



a. c? ad. Los Ynglases, Ajo. Sept. 20, 1908. 



b. S ad. „ „ Jan. 27, 1909. 



c. d. (J& ? 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 woi'n 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 brasilicnse Salvad. Cat, B. xxvii. p. 26G. 



a, b. S 'i ad. Medano, Paraguay. Sept. 17, 1909. 



(^ . 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 sAvift 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, 6, (J & ? yg. Cape San Antonio, Dec. 21, 1908. 



c, c?. c? ? 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 oliv e-grey . 



