BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 523 
2 ad. o', lim. , Brazil, Serra Imeri, near Salto do Hud, November 28-Decem- 
ber 4, 1930. | 
1 im. &, Brazil, Sio Gabriel, Rio Negro, January 3, 1931. 
1 im. co’, Venezuela, Chapazon, Brazo Casiquiare, January 30, 1931. 
Z3ad.c', lim. 7, lad. 9,1 im. —, Venezuela, Cerro Yapacana, Upper Orinoco, 
March 19—April 23, 1931. 
The adult males from Cerro Yapacana were in breeding condition 
when collected. 
While Hellmayr (Catalogue of the birds of the Americas, vol. 5, 
1927, p. 497) has not recognized this race it appears that Todd, 
Zimmer, and Gyldenstolpe are correct in considering it distinct. The 
present series is quite uniform in appearance, indicating variational 
stability. 
Family HIRUNDINIDAE: Swallows 
PROGNE CHALYBEA CHALYBEA (Gmelin): White-bellied Martin 
Hirundo chalybea GMELIN, Systema naturae, vol. 1, pt. 2, 1789, p. 1026 (Cayenne), 
SPECIMENS COLLECTED 
1 ad. —, Brazil, S40 Gabriel, Rio Negro, Amazonas, January 12, 1931. 
1 ad. 3, Brazil, Cucuhy, Rio Negro, Amazonas, February 1, 1930. 
In his account of this wide ranging form, Hellmayr (Catalogue of the 
birds of the Americas, pt. 8, 1935, p. 18, footnote) states that he had 
not seen any Mexican material but that birds from Guatemala and 
Costa Rica seemed not to be separable from those from the northern 
half or more of South America. Mexican examples have been ex- 
amined in the present connection and were found to be the same as 
those from the rest of the range of the race, as correctly worked out 
many years ago by Ridgway (Birds of North and Middle America, 
pt. 3, 1904, p. 40). 
STELGIDOPTERYX RUFICOLLIS AEQUALIS Bangs: Caribbean Rough-winged Swallow 
Stelgidopteryx ruficollis aequalis Banos, Proc. New England Zool. Club, vol. 2, 
1901, p. 58 (Santa Marta, Colombia). 
SPECIMENS COLLECTED 
2im. @, 3im. 9, Venezuela, Soledad, June 11-12, 1931. 
The immature birds do not have the roughened edge on the outer 
web of the outer primary found in adults. The adult bird has the 
rump with the light area less prominent than in the majority of skins 
from northern Venezuela, but still distinct. The pale rump is definitely 
indicated in the immature birds. 
ATTICORA MELANOLEUCA (Wied): Black-collared Swallow 
Hirundo melanoleuca Wied, Reise nach Brasilien . . ., vol. 1, 1820, p. 345 (Rio 
Belmonte, Bahia, Brazil). 
2? 
