CHERRIE: ORNITHOLOGY OF THE ORINOCO REGION. 289 
HVPOCNEMIS FLAVESCENS FLAVESCENS SclatCr. 
Hypocncmis flavcsccns Scl. P. Z. S. 1864 p. 609 (Marabitanas, Rio 
Negro, Brazil). 
In the American Museum collection is a series from the neighbor- 
hood of the foot of Mt. Duida and Boca de Sina, Rio Cunucunuma 
(Upper Orinoco) that probably represent typical Havcscens flavescens. 
I am not at all sure that the Caura River form is sufficiently dis- 
tinct to warrant separation but as pointed out by Mr. Todd the breast 
seems less distinctly squamate and apparently there is a slight difference 
in size, /. hiimilis being the smaller. 
HvPOCNEMIS FL.WESCENS HUMILIS Todd. 
Hypocncmis flavcsccns humilis Todd, Proc. Biol. Soc. Wash, XXVI: 
1913: 172 (La Lajita, Caura, Venezuela). 
Hypocncmis flavescens Berlepsch & Hartert, p. yy. 
Xot observed on the Orinoco proper, but recorded from Nicare, 
Suapure, La Lajita and La Pricion on the Caura River. 
HvLOPHVLAX POECILONOTA POECiLONOTA (Cabanis). 
Hypocncmis poecilonota- Cnh., Weigm. Arch. 1847. p. 213. PI. 4. fig. 2; 
Berlepsch & Hartert, p. 78. 
Hypocnemis poecilinota poecilinota Hellmayr, Xovit. Zool. XIII. 1906. 
p. 371 (Munduapo and Nericagua, Orinoco River, Suapure, Nicare, 
La L'nion and La Pricion. Caura River). 
Hylophylax poccilonota Ridgway, Birds of N. & M. Am. V: p. 128. 
Common about Munduapo and Nericagua. Also recorded by 
Berlepsch and Hartert, and by Hellmayr from points on the Caura 
River. In the American Museum there is a specimen from Suapure. 
Hylophylax poEcilonota lepidonota (Sclater & Salvin). 
Hypocnemis lepidonota Scl. & Salv. P. Z. S. 1880 p. 160 Sarayacu, E. 
Ecuador. 
Miller and Iglseder, collecting for the American Museum, at the 
foot of Mount Duida secured a series of specimens that I have referred 
to this race. The males, however, are paler below, light neutral gray 
(Ridgway's Color Standards), than are two other specimens, one from 
La Murelia, Caqueta, Colombia, and one from Zamora, Province de 
Loja, Ecuador, that are deep neutral gray. Two females are also lighter 
