BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 499 
1 ad. 9, Venezuela, Brazo Casiquiare, below mouth of Rfo Pacila, February 
13, 1931. 
2 ad. o, 3 ad. 9, Venezuela, Upper Orinoco, right bank opposite Corocoro 
Island, March 12-14, 1931. 
1 ad. 9, 1 im. -, Venezuela, San Antonio, Upper Orinoco, March 3-4, 1931. 
1 ad. 9, Venezuela, Cerro Uapacana, Upper Orinoco, April 3, 1931. 
lad. 9, Venezuela, Puerto Ayacucho, Rio Orinoco, May 17, 1931. 
This fine series suggests that it may be necessary to reinstate 
Berlepsch and Leverkuhn’s name angosturae for the Venezuelan 
birds. Hellmayr (Catalogue of the birds of the Americas, pt. 6, 
1929, p. 91, footnote) writes that “specimens from the upper Orinoco, 
including the type of H. angosturae are perfectly similar to Natterer’s 
original series from the Rio Negro...” It is unfortunate that 
the type of angosturae is a female, inasmuch as there is no difference 
between Brazilian and Venezuelan birds in this sex. In the adult 
males, however, the Venezuelan birds (unfortunately only two, both 
from the right bank of the Upper Orinoco opposite Corocoro Island) are 
slightly darker, especially on the forehead, sides of crown, and occiput, 
than are Rio Negro examples. If more ample material should bear 
this out as a constant difference, we would have two races as follows: 
The typical one in the Rio Negro area of northern Brazil and H. f. 
angosturae in the upper Orinoco Basin, east to Mount Duida, in 
Venezuela. 
Females are very variable in the amount of rufescence on the breast 
and abdomen. 
Family TYRANNIDAE: Tyrant Flycatchers 
KNIPOLEGUS ORENOCENSIS ORENOCENSIS Berlepsch: Orinoco Tyrant 
Cnipolegus orenocensis BERLEPSCH, Ibis, 1884, p. 433, pl. 12 (Angostura, Orinoco 
River, Venezuela). 
SPECIMEN COLLECTED 
lad. 9, Venezuela, near Soledad, Anzodtegui, December 1, 1929. 
The female is somewhat paler than a male from Altagracia, the 
only other specimen available for examination. Apparently an un- 
common, or at least an uncommonly collected, species. 
FLUVICOLA PICA PICA (Boddaert): White-shouldered Water-tyrant 
Muscicapa pica BoppaErt, Table des planches enluminéez . .. , 1783, p. 42 
(based on Daubenton, Planches enluminées . . . , pl. 675, fig. 1: Cayenne). 
SPECIMEN COLLECTED 
lim. o, Venezuela, Puerto Ayacucho, Rio Orinoco, January 6, 1930. | 
This specimen still has the brownish juvenal dress on the back. 
The rump and upper tail coverts are broadly white, while the white 
shoulder patches of the adult are indicated by the white traces of the 
scapular and adjacent feathers, visible when the plumes are parted. 
