BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 46] 
SPECIMENS COLLECTED 
lad. 9, Venezuela, Cerro Yapacana, Upper Orinoco, April 12, 1931. 
lad. o, Venezuela, Soledad, Anzodtegui, December 10, 1929. 
lim. o’, Venezuela, Ciudad Bolivar, November 27, 1929. 
The immature male shows signs of molting. 
The Cerro Yapacana bird is identified with this race with no real 
feeling of certainty. The locality is far to the south of the previous 
geographic limits of the race; it is far to the north of T. d. signatus 
Zimmer; in fact, the species does not seem to have been recorded from 
that area before, at least in print. A lone female specimen is ob- 
viously difficult to. place, especially in a species where the best racial 
characters are those of the male plumage. 
THAMNOPHILUS NIGROCINEREUS CINEREONIGER Pelzeln: Pelzeln’s Cinereous Ant-shrike 
Thamnophilus cinereoniger PELZELN, Zur Ornithologie Brasiliens, pt. 2, 1868, 
pp. 76, 143 (above Ayraéo, near Villa de Moura, Marabitanas, ete... .; 
type from Rio Amajau). 
SPECIMENS COLLECTED 
lad. 9 (=o?), Brazil, Rio Negro, near Muirapinima, October 4, 1930. 
2 ad. op, lad. 2, Brazil, Rio Negro, Cucuhy, February 3-7, 1930. 
2ad. o, lad. 2, Brazil, Rio Negro, Santa Isabel, October 13, 1930. 
lad. op, lad. ?, Brazil, Rio Negro, Sao Gabriel, January 16-19, 1931. 
lad. o, Venezuela, Rfo Negro, below San Carlos, January 27, 1931. 
lad. o', lad. 9, Venezuela, Brazo Casiquiare, Chapazon, January 30-31, 1931. 
lad. @, lad. 9, Venezuela, Brazo Casiquiare, Cerro Guanari, February 4, 1931. 
lad. &, lad. 9, Venezuela, Brazo Casiquiare, mouth of Cafio Atamoni, Feb- 
ruary 6, 1931. 
lad. &@, lad. 9, Venezuela, Brazo Casiquiare, Playa de Candela, February 8, 
1931. 
1 ad. o', 1 ad. 9, Venezuela, Brazo Casiquiare, below mouth of Rfo Pacila, 
February 11-13, 1931. 
lim. &, lad. 9, Venezuela, San Antonio, Upper Orinoco, February 28—-March 
9, 1931. 
5 ad. o', 3 ad. 9, Venezuela, Upper Orinoco, right bank, opposite Corocoro 
Island, March 13-16, 1931. 
One of the specimens taken in March was noted as being in breeding 
condition; birds in molt were shot in October and January. 
This race is restricted to the Upper Rio Negro and the Upper 
Orinoco, northward at least to Altagracia. 
THAMNOPHILUS AETHIOPS POLIONOTUS Pelzeln: Natterer’s Ant-shrike 
Thamnophilus polionotus PELzELN, Zur Ornithologie Brasiliens, pt. 2, 1868, pp. 77, 
147 (Marabitanas, Rio Negro, Brazil). 
SPECIMENS COLLECTED 
2 ad. @, Brazil, Cucuhy, Rio Negro, February 5-8, 1930. 
lad. 9, Brazil, Santa Isabel, Rio Negro, October 15, 1930. 
lad. @, lad. 9, Brazil, Cachoeira Manajé, Rio Cauabury, October 30, 1930. 
lad. 6, Brazil, Rio Cauabury, above mouth of Rio J4, November 4, 1930. 
1 ad. o, Brazil, Rio Maturacé, November 11, 1930. 
2 ad. o’, Brazil, Salto do Hud, Rio Maturac4, November 17-24, 1930. 
