484 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 97 
SPECIMENS COLLECTED 
1 ad. o&, Brazil Salto do Hud, Venezuelan line, November 17, 1930. 
38ad of’, 3im. #,3ad. 9,1lim. ?,2 im.-, Venezuela, Cerro Yapacana, Upper 
Orinoco, April 3-28, 1931. . 
The unsexed immature bird has the pectoral markings dark brownish 
olive instead of black and has the entire breast and abdomen streaked 
with the same. The other supposedly immature birds are like the 
adults; in fact two of them were noted as having enlarged gonads 
although they were marked “immature.” A number of the April 
birds were in breeding condition when collected. 
Family COTINGIDAE: Chatterers 
PHOENICIRCUS NIGRICOLLIS Swainson: Black-necked Red Chatterer 
Phoenicircus nigricollis Swainson, in Richardson, Fauna Boreali-Americana, 
vol. 2, 1832, p. 491 (based on Ampelis carnifex Spix, Avium species novae . . ., 
Brasiliam ... , vol. 2, p. 4, pl. 5: Barcellos, Rio Negro). 
SPECIMEN COLLECTED 
1 ad. 9, Brazil, Santa Isabel, Rio Negro, Amazonas, October 16, 1930, 
This specimen is very slightly darker above than a comparative 
series of females in the American Museum of Natural History. 
COTINGA COTINGA (Linnaeus): Purple-breasted Cotinga 
Ampelis cotinga LINNAEUS, Systema naturae, ed. 12, vol. 1, 1766, p. 298 (based on 
“Le Cotinga” Brisson: “‘Brésil’’). 
SPECIMEN COLLECTED 
1 ad. o&, Brazil, Serra Imeri, Venezuelan border, December 3, 1930. 
This specimen is unusually small, having a wing length of ‘only 
96 mm. Four males from British Guiana and two from Diamantina, 
near Santarém, Brazil, have wings of from 104-111 mm. A male 
from Camandaos, Rio Negro, in the American Museum of Natural 
History, has a wing length of 101 mm. Further material is needed 
to determine whether or not the Rio Negro population is constantly 
small. 
COTINGA CAYANA (Linnaeus): Cayenne Cotinga 
Ampelis cayana LINNAEUS, Systema naturae, ed. 12, vol. 1, 1766, p. 298 (based on 
“Le Cotinga de Cayenne” Brisson: Cayenne). 
SPECIMENS COLLECTED 
lad. 9, Brazil, Santa Isabel, Rio Negro, October 10, 1930. 
lad. &, lad. 9, Venezuela, Chapazon, Brazo Casiquiare, January 30-31, 1931. 
1 ad. o', Venezuela, San Antonio, Upper Orinoco, March 8, 1931. 
Comparison of these 4 specimens with 10 others from British 
Guiana, Brazil, and Peru suggests that the species is unusually variable 
in size. Males from British Guiana (4) have wing lengths of 106- 
113.4 mm.; Amazonian and southern Venezuelan males (4) measure 
105.2-112 mm., while a single male from the headwaters of the 
