BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 539 
The immature male from Cerro Yapacana is in a very advanced 
stage of the postjuvenal molt, the only remnants of its youthful plumage 
being a few scattered greenish feathers on the back. The immature 
female is similar to the adults but lacks the light bluish malar line. 
I follow Zimmer (Amer. Mus. Nov., No. 1203, 1943, p. 12) in con- 
sidering cherriei a synonym of microrhynchus. The measurements 
given for cherriei (to which race the present series would have to be 
referred if it were valid) by Hellmayr (Catalogue of the birds of the 
Americas, pt. 8, 1935, p. 261) are slightly smaller than those I get for 
the Serra Imeri birds. He gives wing lengths of from 52-54 mm. and 
bill lengths of 15-16, rarely 17 mm., for males, while I find the males 
to have wing measurements of from 52-57 mm., and bills of from 16.5- 
18 mm. 
DACNIS CAYANA CAYANA (Linnaeus): Cayenne Dacnis 
Motacilla cayana Linnazus, Systema naturae, ed. 12, vol. 1, 1766, p. 366 (based 
on “Sylvia cayenensis coerulea” Brisson, Ornithologie, vol. 3, p. 534, pl. 28, fig. 
1: Cayenne). 
SPECIMENS COLLECTED 
lad. @, 1 ad. 9, Brazil, Mandos (Flores Tramway) Amazonas, September 
29-30, 1930. 
lim. 3, Brazil, Barcellos, Rio Negro, Amazonas, October 6, 1930. 
lad. 0, Brazil, Rio Maturacé, Amazonas, November 11, 1930. 
1 ad. &, 2. ad. 2, Brazil, Sao Gabriel, Rio Negro, Amazonas, January 5-16, 
1931. 
lim. 3, Venezuela, Raudal San Sebastian, Brazo Casiquiare, February 1, 1931. 
lad. 9, Venezuela, Solano, Brazo Casiquiare, February 2, 1931. 
Zad. #,2im. #,4ad. 2, Venezuela, Cerro Yapacana, Upper Orinoco, April 
1-28, 1931. 
Z3ad. #,2ad., 2, Venezuela, Puerto Ayacucho, Upper Orinoco, January 5, 1930, 
and May 11-20, 1931. 
Although Hellmayr (Catalogue of the birds of the Americas, pt. 8, 
1935, p. 269) writes that ‘birds from Amazonia and Venezuela are 
apparently inseparable from a Guianan series, the throat being deep 
black in the male . . .”’ it happens that the throats of all the males 
in the present series are tinged with green, differing in this respect 
from birds from British Guiana and Trinidad, but are equally dark. 
Two males in an advanced stage of the postjuvenal molt (Puerto 
Ayacucho, May 20, and Sao Gabriel, January 15) indicate that the 
order of this molt is not definite, one has the adult feathering com- 
pletely on the upperparts, except for the wings, while the other stiil 
has many green feathers left above, but the latter specimen is just as 
far along with the molt on the underparts as is the former. 
DACNIS FLAVIVENTER D’Orbigny and Lafresnaye: Yellow-bellied Dacnis 
Dacnis flaviventer D’ORBIGNY and LAFRESNAYE, Mag. Zool., vol. 7, cl. 2, 1837, 
p. 21 (Yuracares, Bolivia). 
