BIRDS FROM BRAZIL AND SOUTHERN VENEZUELA—FRIEDMANN 515 
are identified subspecifically by geographic considerations. They 
agree with Zimmer’s description and comments. 
COLOPTERYX GALEATUS (Boddaert): Helmeted Pygmy Tyrant 
Motacilla galeata Bopparrt, Table des planches enluminéez . . ., 1783, p. 24 
(based on Daubenton, Planches enluminées . . ., pl. 391, fig. 1: Cayenne). 
SPECIMENS COLLECTED 
lad. #,3im. 92, Brazil, Sio Gabriel, Rio Negro, December 26, 1930—-January 
9, 1931. 
lad. o&, 2im. 9, Venezuela, Chapazon, Brazo Casiquiare, January 30, 1931. 
lim. 0, Venezuela, Raudal San Sebastian, Brazo Casiquiare, February 1, 1931. 
1 ad. 6’, Venezuela, Cerro Guanari, Brazo Casiquiare, February 4, 1931. 
lim. @&, Venezuela, Brazo Casiquiare, at mouth of Cafio Atamoni, February 6, 
1931. 
lim. 9, lim. #, Venezuela, Cerro Yapacana, Upper Orinoco, April 5-19, 1931. 
Some of the February and April birds were in breeding condition. 
On the whole, the immature birds average slightly more yellowish 
below. 
Hellmayr (Catalogue of the birds of the Americas, pt. 5, 1927, pp. 
333-334) and more recently Gilliard (Bull. Amer. Mus. Nat. Hist., 
vol. 77, 1941, p. 489) state that this flycatcher occurs in southern 
Venezuela, as far south as the falls of Maipures, the Caura Valley, 
and Mount Auy4n-tepui, and also in the Guianas and northern 
Brazil, west to Mandos. The present series extends the southwestern 
limits of the range somewhat to take in the lower stretches of the Rio 
Negro, the Casiquiare, and the Upper Orinoco. 
ATALOTRICCUS PILARIS GRISEICEPS (Hellmayr): Gray-headed Pygmy Tyrant 
Colopteryx pilaris griseiceps HELLMAYR, Rev. Frang. Orn., vol. 3, No. 22, 1911, p. 24 
(Altagracia, Rio Orinoco, Venezuela). 
SPECIMENS COLLECTED 
lim. o&, Venezuela, Puerto Ayacucho, Rio Orinoco, May 11, 1931. 
lim. o', lad. 2, Venezuela, Ciudad Bolivar, June 8-10, 1931. 
In spite of the fact that the two males were marked “immature” 
by the collectors, all three specimens were noted as having enlarged, 
active gonads when shot. 
Our specimens appear to come from the two extremes of the Vene- 
zuelan range of the race. 
MYIORNIS ECAUDATUS MISERABILIS (Chubb): Northern Short-tailed Pygmy Tyrant 
Perissotriccus ecaudatus miserabilis Coups, Ann. Mag. Nat. Hist., ser. 9, vol. 4, 
1919, p. 301 (Bonasika River, British Guiana). 
SPECIMEN COLLECTED 
lim. 6, Venezuela, Cerro Yapacana, Upper Orinoco, April 17, 1931. 
Zimmer’s statement (Amer. Mus. Nov., No. 1066, 1940, pp. 21-22) 
that there “is just enough difference observable between birds from 
