480 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
These examples extend the known range of this form slightly in the 
Rio Negro area. 
GYMNOPITHYS RUFIGULA PALLIDA (Cherrie): Venezuelan Rufous-throated Antcatcher 
Anoplops rufigula palidus CHERRIE, Bull. Mus. Brooklyn Inst. Sci., vol. 1, No. 16, 
1900, p. 390 (Suapure, Caura River). 
SPECIMENS COLLECTED 
1 ad. o', 1 ad. 2, Brazil, Rio Jé, Amazonas, November 3, 1930. 
1 ad. o, Brazil, Serra Imeri, near Salto do Hud, November 29, 1930. 
1 ad. o’, 1 ad. 2, Venezuela, Brazo Casiquiare, mouth of Cafio Atamoni, 
February 6, 1931. 
lad. &, lad. 2, Venezuela, Cerro Yapacana, Upper Orinoco, April 7-8, 1931. 
This is a poorly differentiated race, the supposedly paler coloration 
being very slight and not even constant. The birds are slightly 
smaller than others from the Rio Negro and from the Guianas. 
GYMNOPITHYS LEUCASPIS LATERALIS Todd: Rio Negro Cinnamon Antcatcher 
Gymnopithys leucaspis lateralis Topp, Proc. Biol. Soc. Washington, vol. 40, 1927, 
p. 174 (Manacapurt, Brazil). 
SPECIMENS COLLECTED 
lad. o, lim. 2, Brazil, Sio Gabriel, Rio Negro, January 14, 1931. 
The immature bird resembles the adult but has a few dark brown 
feathers among the white ones on the breast and has a darker man- 
dible. 
In the absence of comparative material, these examples are identified 
subspecifically in accordance with Zimmer’s revision of the species 
(Amer. Mus. Nov., No. 917, 1937, pp. 3-6). 
HYLOPHYLAX NAEVIA CONSOBRINA Todd: Todd’s Spotted-backed Antbird 
Hylophylax consobrina Tovp, Proc. Biol. Soc. Washington, vol. 26, 1913, p. 172 
(Rio Mocho, upper Caura River, Venezuela). 
SPECIMENS COLLECTED 
1 ad. —- (=), Brazil, Rio Cauabury, below Cachoeira Destacamento, October 
28, 1930. 
1 ad. —- (=), Brazil, Rio Cauabury, above Cachoeira Manajé6, October 31, 
1930. 
2ad. @#, lad. 9, lad.—-(= 9), Brazil, Salto do Hud, Rio Maturacd, November 
17-24, 1930. 
4ad. &,3im. o, 1 ad. 9, Brazil, Serra Imeri, near Salto do Hud, November 
26—December 8, 1930. 
lad. — (= 2), Brazil, Sio Gabriel, Rio Negro, January 13, 1931. 
1 ad. 2, Venezuela, Brazo Casiquiare, mouth of Cafio Atamoni, February 6, 1931. 
lad. @, Venezuela, Brazo Casiquiare, near Cafio Durutomoni, February 19, 1931. 
3 ad. #, lim. o, 1 ad. 2, Venezuela, Cerro Yapacana, Upper Orinoco, April 
4-25, 1931. 
