522 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 97 
He comments that birds from the Rio Negro area, Brazil, show the 
darkest extreme of coloration but are not consistent in that character, 
and many specimens from that region can be matched by birds from . 
localities far distant. The variable character of the color of the sides 
of the head below the eyes mentioned by him is illustrated in the 
present series. Two of the birds have this area yellowish or greenish, 
the rest grayish. 
Recently Gyldenstolpe (Kungl. Svenska Vet.-Akad. Handl., vol. 
22, No. 3, 1945, p. 262) has concluded that benit Carr of Bolivia 
and panamensis Thayer and Bangs of Panama are recognizable races. 
In case further study should bear this out, the present birds would be 
T. e. elatus. 
LEPTOPOGON SUPERCILIARIS VENEZUELENSIS Hartert and Goodson: Venezuelan 
Leptopogon 
Leptopogon superciliaris venezuelensis HARTERT and Goopson, Nov. Zool., vol. 247 
1917, p. 413 (Cumbre de Valencia, Valencia, above Puerto Cabello, Carabobor 
Venezuela). 
SPECIMEN COLLECTED 
lim. 9, Brazil, Serra Imeri, near Salto do Hud, Venezuelan border, December 
7, 1930. 
It is unfortunate that the lone example of this form secured is in 
immature plumage as the locality whence it comesis a newone. If the 
bird is venezuelensis, with which it is here tentatively placed, it extends 
the known range southwestward across southern Venezuela to the 
Rio Negro in Brazil; it was formerly recorded from Trinidad and 
northern Venezuela. 
LEPTOPOGON AMAUROCEPHALUS ORINOCENSIS Zimmer and Phelps: Orinoco Leptopogon 
Leptopogon amaurocephalus orinocensis ZIMMER and PuEups. Amer. Mus. Nov., 
No. 1312, 1946, p. 15 (Santa Rosalia, Lower Caura Valley, State of Bolivar, 
Venezuela; altitude 100 meters). 
SPECIMENS COLLECTED 
lad. o&, 2im. o, Venezuela, Cerro Yapacana, March 20—April 21, 1931. 
These three specimens have been compared for me with the type 
series of orinocensis by Dr. John T. Zimmer, with the unexpected 
result that they agree with this form and not with obscuritergum. 
It appears from this that orinocensis must range from Cerro Yapacana 
downstream to the Lower Caura region. 
PIPROMORPHA OLEAGINEA CHLORONOTA (D’Orbigny and Lafresnaye): Orinoco 
Pipromorpha 
Muscicapa chloronotus ‘“Lesson,’’ D’OrBIaNYy and LAFReSNAYE, Synopsis avium, 
in Mag. Zool., 1837, cl. 2, p. 51 (Yuracares, Bolivia). 
SPECIMENS COLLECTED 
1 ad. #, 1 im. 0, Brazil, Santa Isabel, Rio Negro, October 10, 1930. 
