458 PROCEEDINGS OF THE NATIONAL- MUSEUM VOL. 97 
These birds have the duller color above and below and the somewhat 
less accentuated streakings on the neck, foreneck, and upper breast 
that mark this rather indefinitely characterized subspecies. 
XENOPS TENUIROSTRIS ACUTIROSTRIS Chapman: Sharp-billed Xenops 
Xenops acutirostris CHAPMAN, Amer. Mus. Nov., No. 86, 1923, p. 16 (Zamora, 
Prov. Loja, Ecuador). 
SPECIMEN COLLECTED 
1 ad. -, Venezuela, Cerro Yapacana, Upper Orinoco, April 27, 1931. 
Zimmer (Amer. Mus. Nov., No. 861, 1936, p. 17) was the first to 
record this race from extreme southern Venezuela (Rio Huaynia, an 
affluent of the Casiquiare). The present example appears to be the 
northernmost one yet recorded. 
MICROXENOPS MILLERI Chapman: Miller’s Xenops 
Microxenops milleri CuapMAN, Bull. Amer. Mus. Nat. Hist., vol. 33, 1914, p. 196 
(foot of Mount Duida, Venezuela). 
SPECIMENS COLLECTED 
lim. 9, Brazil, Rio Cauabury, Amazonas, October 31, 1930. 
Although known from southern Venezuela (Mount Duida) and from 
northern Brazil, this bird does not seem to have been recorded before 
from the Rio Negro Basin. 
SCLERURUS RUFIGULARIS FULVIGULARIS Todd: Ochreous-throated Leafscraper 
Sclerurus rufigularis fulvigularis Topp, Proe. Biol. Soe. Washington, vol. 33, 1920, 
p. 74 (Tamanoir, French Guiana). 
SPECIMENS COLLECTED 
lad. 9, Brazil, Serra Imeri, near Salto do Hua, Venezuelan border, December 6, 
1930. 
2ad.i,lim. 9, 3 ad. 9,1ad. —, Venezuela, Cerro Yapacana, Upper Orinoco, 
March 28—April 26, 1931. 
Two of the April birds were noted as being in breeding condition 
when collected. 
Family FORMICARIIDAE: Ant-thrushes 
CYMBILAIMUS LINEATUS INTERMEDIUS Hartert and Goodson: Amazonian Bush-shrike 
Cymbilaimus lineatus intermedius HArTerT and Goopson, Nov. Zool., vol. 24, 
1917, p. 495 (Humayth4, Rio Madeira, Brazil). 
SPECIMENS COLLECTED 
lad. ?, Brazil, Sio Gabriel, Rio Negro, December 30, 1930. 
lad. @, Brazil, Rio Maturacé, November 9, 1930. 
1 ad. &, 1 im—Brazil, Salto do Hud, Rio Maturacd, November 19-20, 1930. 
1 ad. 2, Venezuela, Brazo Casiquiare, Chapazon, January 30, 1931. 
2 ad. o', 1 ad. 9, Venezuela, Brazo Casiquiare, mouth of Caio Atamoni, 
February 6, 1931. 
