BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 435 
1 ad .o’, Venezuela, Brazo Casiquiare, below Caio Caripo, February 22, 1931. 
1 ad. o&, Venezuela, Upper Orinoco, right bank opposite Corocoro Island, 
March 13, 1931. 
6 ad. o', 6 ad. 9, Venezuela, Cerro Yapacana, Upper Orinoco, March 28- 
April 27, 1981. 
lim. ¢, Venezuela, Puerto Ayacucho, Rio Orinoco, January 8, 1930. 
Several of the Cerro Yapacana birds were noted as being in breeding 
condition; one of the females had an egg ready for the shell in its 
oviduct. 
Collin and Hartert (Nov. Zool., vol. 34, 1927, p. 51) consider that 
Boddaert’s name atra, 1783, should be used for this bird, as Cuculus 
niger Miller, 1776, is preoccupied by Cuculus niger Linnaeus, 1758. 
This has been accepted by Pinto (Rev. Mus. Paulista, vol. 22, 1937, 
p. 317) but has not been followed by Gilliard (Bull. Amer. Mus. Nat. 
Hist., vol. 77, 1941, p. 475). 
This bird has been recorded from the Rio Negro, but it must be a 
relatively scarce bird there in contrast to the Casiquiare and the 
Upper Orinoco. 
MONASA MORPHOEUS PERUANA &clater: Peruvian White-bearded Nunbird 
Monasa peruana ScuaTerR, Proc. Zool. Soc. London, 1855, p. 194 (Chamicuros, 
eastern Pert). 
SPECIMEN COLLECTED 
1 ad. 9, Brazil, Rio Maturacé, November 9, 1930. 
The present specimen is from the extreme northeastern limit of 
the range of the subspecies. Judged by the few records in literature, 
it would seem to be an uncommon bird in the Rio Negro area. 
CHELIDOPTERA TENEBROSA TENEBROSA (Pallas): Swallow-wing 
Cuculus tenebrosus Patuas, Neue Nord. Beytr., vol. 3, 1782, p. 3 (Surinam). 
SPECIMENS COLLECTED 
lad. o@, 2 ad.9, Brazil, Mandos, September 26-30, 1930. 
lim. o, Brazil, Barcellos, Rio Negro, October 6, 1930. 
1 ad. o, Brazil, Santa Isabel, Rio Negro, October 17, 1930. 
lad. #, 2 ad. 9, Brazil, Sdo Gabriel, Rio Negro, December 29, 1930—-January 
3, 1931. 
1 ad. 9, Venezuela, Brazo Casiquiare, Chapazon, January 31, 1931. 
lad. o, Venezuela, Upper Orinoco, right bank opposite Corocoro Island, March 
14, 1931. 
1 ad. 9, Venezuela, Cerro Yapacana, Upper Orinoco, April 27, 1931. 
lad. #, lim. ¢@, 1 ad. 9, 1 ad—, Venezuela, Puerto Ayacucho, Rfo Orinoco, 
May 16-19, 1931, and January 6, 1930. 
Immature birds resemble the adults. 
One of the January birds shows signs of molt. 
This form occurs from the Guianas and eastern Colombia south to 
northern Brazil and Amazonian Peru. In the coastal area of north- 
western Venezuela the birds are paler gray on the midabdomen and 
