325 
Paraguay, Bolivia , and Southern Brazil. 
Besides the specimen obtained, three or four individuals 
of this species were observed at Colonia Mihanoviteh. 
162. Guira piririgua. 
Guira piririgua Arg. Orn. ii. p. 32. 
Guira guira Shelley, Cat. B. xix. p. 433. 
«, b, c. S ? ad. Los Ynglases, Ajo. Sept. 22, 1908. 
d, e,f,g, h. ? ad. „ „ Apr. 5, 1909. 
i,j,k. S ? ad. „ ,, May 13,1909. 
1. $ ad. Bella Vista, N. Argentine. Nov. 12,1909. 
The September and November birds are shewing signs of 
wear, and the April birds are moulting, the May specimens 
being in full plumage. 
Irides orange; lores and orbits pale greenish yellow, 
bluish near the ear ; bill dark orange, greenish yellow at 
base ; legs and toes dull medium olive. 
A common species, observed in parties of six or eight 
individuals. 
163. Diplopterus n^evius. 
Diplopterus ncevius Arg. Orn. ii. p. 35 ; Shelley, Cat. B. 
xix. p. 423. 
a. £ ad. Cabo Emma, Paraguay. Oct. 20, 1909. 
164. PlAYA MACRURA. 
Piaya macrura Chubb, Ibis, 1910, p. 272. 
a. S a( l. Tayru, Paraguay. Aug. 6, 1909. 
b. $ ad. Pan de Azucar, Brazil. Sept. 17, 1909. 
c. $ . Boca de Homiguera, Brazil. Oct. 12, 1909. 
Irides and orbits crimson ; bill pale green ; legs and toes 
slate-coloured. 
The October bird is in a very pale phase, with only a wash 
of black on the tail. 
Pam. Rhamphastidac. 
165. Rhamphastos toco. 
Rhamphastos toco Arg. Orn. ii. p. 40; Scl. Cat. B. xix. 
p. 125. 
a. S ac b Mortero, Paraguay. Aug. 13, 1909. 
b. S ac b P an de Azucar, Brazil. Sept. 19, 1909. 
c. d. ? ad, Coimbra, Brazil, Oct. 15, 1909. 
