520 | PROCEEDINGS OF THE NATIONAL: MUSEUM VOL. 97 
zuela, and with others from Santander del Norte, Colombia, but has a 
slightly smaller bill and slightly paler yellow crest. It is in worn 
plumage and does not show any pale narrow margins on the upper 
wing coverts. 
SUBLEGATUS GLABER ORINOCENSIS Zimmer: Orinoco Smooth Flycatcher 
Sublegatus glaber orinocensis ZIMMER, Amer. Mus. Nov., No. 1109, 1941, p. 5 
(Altagracia, Rio Orinoco, Venezuela). 
SPECIMEN COLLECTED 
1 ad. 9, Venezuela, Soledad, Anzodtegui, December 4, 1929. 
The small size (wing 62 mm.) and paleness of this specimen agree 
with the characters of orinocensis, to which form it should belong 
geographically. The bird is in fairly fresh feathering. 
The birds in the Rio Negro drainage basin are darker and larger and 
form the race S. g. sordidus Zimmer. 
PHAEOMYIAS MURINA INCOMTA (Cabanis and Heine): Northern Mouse-colored Tyrannulet 
Elainea incomta CaBANIs and HEINE, Museum Heineanum, vol. 2, 1859, p. 59 
(Cartagena, Colombia). 
SPECIMENS COLLECTED 
3 ad. o', 2ad. 9, lim. 9, Venezuela, Puerto Ayacucho, Rfo Orinoco, May 11— 
16, 1931. 
lad. 9, Venezuela, Soledad, Anzodtegui, December 4, 1929. 
1 ad. &, Venezuela, Laguna Icacal, near Ciudad Bolivar, December 8, 1929.. 
lad. o, lad. 9, 1 im. —, Venezuela, Ciudad Bolivar, November 26, 1929, and 
June 10-11, 1931. 
The immature birds are slightly paler above than the adults. All 
the present specimens are in fairly worn plumage. 
No birds from the Rio Negro have been available for study but it 
may be pointed out that Zimmer (Amer. Mus. Nov., No. 1109, 1941, 
p. 10) lists birds from Rio Negro, Igarapé Cacao Pereira, as the 
Amazonian form P. m. wagae (‘Taczanowski). 
CAMPTOSTOMA OBSOLETUM NAPAEUM (Ridgway): Ridgway’s Tyrannulet 
Ornithion napaeum Ripaway, Proc. U. 8. Nat. Mus., vol. 10, 1888, p. 520 (Dia- 
mantina, near Santarém, Rio Tapajéz). 
SPECIMENS COLLECTED 
2 ad. o&, Brazil, Sio Gabriel, Rio Negro, Amazonas, January 8-13, 1931. 
These specimens have been compared with topotypical examples 
and found to be very slightly darker above, but not significantly so. 
CAMPTOSTOMA OBSOLETUM VENEZUELAE Zimmer: Zimmer’s Tyrannulet 
Camptostoma obsoletum venezuelae ZimmMER, Amer. Mus. Nov., No. 1109, 1941, 
p. 12 (La Cascabel, Rio San Feliz, Venezuela). 
SPECIMENS COLLECTED 
3 ad. o, lad. 9, Venezuela, San Antonio, Upper Orinoco, March 1-5, 1931. 
