506 PROCEEDINGS OF THE NATIONAL MUSEUM - VoL. 97 
These two birds are apparently migrants from the south. Both 
are in worn plumage, the adult showing active molt in the tail. 
That this form, breeding in Paraguay to southeastern Bolivia and 
southeastern Brazil, migrates north to Venezuela has been recorded 
by Zimmer (Amer. Mus. Nov., No. 994, 1938, p. 4 and 8). 
MYIARCHUS SWAINSONI PHAEONOTUS Salvin and Godman: Whiteley’s Flycatcher 
Myiarchus phaeonotus SauviIn and Gopman, Ibis, 1883, p. 207 (Merumé Moun- 
tains, British Guiana). 
SPECIMENS COLLECTED 
lad. #@, lad. 9, Venezuela, Tamatama, Upper Orinoco, Februrary 23, 1931. 
2 ad. o@, 3ad. 9,1 im. 9, Venezuela, Cerro Yapacana, Upper Orinoco, March 
25-April 16, 1981. 
The two specimens from Tamatama are not typical but are inter- 
mediate between phaconotus and amazonus, being somewhat less 
sooty above and more yellowish in the abdomen than in the Cerro 
Yapacana birds. 
It is still an unsolved question as to whether swainsoni and feroxr 
are species, each with its own races, or are more closely related. 
Todd’s revision (Proc. Biol. Soc. Washington, vol. 35, 1922, pp. 
181-217) of the genus presents conclusions quite at variance with 
those of Hellmayr (Catalogue of the birds of the Americas, pt. 5, 1927, 
pp. 158-187) and both differ from those of Zimmer (Amer. Mus. 
Noy., No. 994, 1938, pp. 1-26). For one working with a different 
series of specimens the points of agreement and of difference in these 
three reviews are exceedingly difficult to harmonize; let it be said 
that Zimmer’s review has been taken as the most recent comprehensive 
study in guiding the identifications here used, but I have no feeling of 
certainty that ferox and swainsoni are really specifically distinct. 
The Cerro Yapacana birds agree very well with material from 
Mount Duida. 
MYIARCHUS FEROX FEROX (Gmelin): Fierce Flycatcher 
Muscicapa ferox GMELIN, Systema naturae, vol. 1, pt. 2, 1789, p. 934 (primarily 
based on “Le Tyran, de Cayenne” Brisson, Ornithologia . . ., vol. 2, p. 398: 
Cayenne). 
SPECIMENS COLLECTED 
1 ad. o, Brazil, Mandos, September 29, 1930. 
1 im. #@, Venezuela, Upper Orinoco, right bank opposite Corocoro Island, 
March 15, 1981. 
1 ad. &, Venezuela, Cerro Yapacana, Upper Orinoco, April 16, 1931. 
3 ad. o&, Venezuela, Puerto Ayacucho, Rio Orinoco, May 12-20, 1931, and 
January 8, 1930. 
Two of the Puerto Ayacucho examples have the gray of the breast 
much suffused with buff and pale olive-tawny. 
Hellmayr (Catalogue of the birds of the Americas, vol. 5, 1927, p. 
177) suggests that the birds of southern Venezuela, which would 
