Paraguay , Bolivia , Southern Brazil. 
469 
237. Calidkis arenaria. 
Calidris arenaria Arg. Orn. ii. p. 186 ; Sharpe, Cat. B. 
xxiv. p. 526. 
a. cf ad. Cape San Antonio. Dec. 19, 1908. 
c, d, e. S ? ad. Tuyu, Ajo. Jan. 12, 1910. 
Commonly observed during the summer months along the 
coast in the Ajo district in flocks of from six to twelve 
individuals. 
258. Totanus melanoleucus. 
Tot anus melanoleucus Arg. Orn. ii. p. 186; Sharpe, Cat. 
B. xxiv. p. 426. 
a, b. $ ad. Los Ynglases, Ajo. Mar. 8-17, 1909. 
c. $ ad. Luiconia, Ajo. Apr. 29, 1909. 
An occasional individual is seen in the winter months, 
and is, I presume, an immature non-breeding bird. 
259. Totanus flavipes. 
Totanus flavipes Arg. Orn. ii. p. 187 ; Sharpe, Cat. B. 
xxiv. p. 431. 
a } b . $ ad. Los Ynglases, Ajo. 
c. S ad. „ 
d, e,f.$$ young. „ 
g. ? ad. „ „ 
h, i. S ? ad. Santa Rosa, Paraguay. Aug. 14, 1909. 
j. S' • Porto Esperanga, Brazil. Sept. 25, 1909. 
k. S • Near Esquina, N. Argentine. Nov. 14, 1909. 
Commonly observed throughout the summer : many remain 
through the winter months ; these being apparently young 
birds of the previous year. 
Sept. 11-29, 1908. 
Nov. 5, 1908. 
Feb. 7-9, 1909. 
Dec. 27, 1909. 
260. Rhyacophilus solitarius. 
Rhyacophilus solitarius Arg. Orn. ii. p. 188. 
Helodromas solitarius Sharpe, Cat. B. xxiv. p. 444. 
a. $ ad. Monte Alto, Paraguay. Aug, 25, 1909. 
b. ? ad. Porto Esperanga, Brazil. Sept. 25, 1909. 
c. d, e. S ? ad., young. Riacho Paraguay, Mirin, Brazil. 
Oct. 2-3, 1909. 
2 k 
SER. IX.-VOL. V, 
