340 REVIEW OF AMERICAN BIRDS. [PART I. 
the dusky edges of the cap, and the dark loral line, relieved against 
a whitish superciliary stripe, so distinct in olivacea and agilis, being 
scarcely or much Jess appreciable in flavoviridis. The wings are 
more rounded in agilis; the first quill considerably shorter than 
fifth, instead of being nearly equal or longer. 
This species, whether what I describe as V. chivi be the same or 
not, scarcely extends north of Continental South America—the skin 
from Guatemala, just mentioned, being almost the only one quoted, 
and the locality of this may possibly be erroneous, even if the bird be 
not of a different species. I have never found any indication of the 
occurrence of any bird of this type in the West Indies or North 
America in recent times.* 
It is quite probable that the careful comparison of a larger number 
of good specimens of Vireos of the type of chivi and agilis may re- 
sult in establishing the existence of one or two more species; that 
from “‘ Guatemala” (No. 8,050), at least, is different in several points 
from the rest, and I had provisionally named it before concluding 
that it was best to allow the decision of the question to rest upon 
the examination of a better series. 
raitneblten. Sex 
sonian| tor’s | and Locality. a ar Received from Collected by 
No. | No. | Age. F 
10,174 oe 2 8. Brazil. 56 Dri Cabanissy ) Wj Aiscceee 
2,034 oe i Brazil. oe 8. F. Baird. Langsdorff. 
15,070 oe ar Buenos Ayres. eee Ji ike LOWRSENGs fl Eh semper 
34,091 are oe Quito, Ecuador. Sek Prof. Jameson: ~ +])— sateen 
wis i Fs Trinidad. ae Cab. A.& BE. New-] = a. sae 
8,050 Se ime “Guatemala,” S00 J. Gould. [ton ) 5 amen 
(8,050.) ‘* Perhaps erroneous locality.” 
Vireosylvia philadeiphica. 
Vireosylvia philadelphica, Cassin, Pr. A. N. Sc. V, Feb. 1857, 153.—In. 
VI, pl. i, fig. 1 (Philadelphia).—Sciarer & Savin, Ibis, I, 1859, 
1 I have never met with a bird agreeing with the description of Vireo bar- 
tramii, of Audubon. The proportions of the body and the quills are much as 
in V. agilis. The tail, however, is said to be “wood-brown margined with 
paler,” instead of olivaceous; and the lower parts “white, the breast tinged 
with pale yellow, and the throat and sides with gray,” instead of being white 
below; the crissum bright sulphur yellow, the flanks yellowish-olive. The 
crown (not the nape) is “‘deep gray, bordered by a line of blackish,’’ which 
separates it from all known North American species, excepting V. olivaceus 
and barbatulus, from which the proportions of the quills are entirely different. 
If, therefore, this species be really as described by Audubon, it has been 
entirely unnoticed since his time, although distinct, and should be carefully 
sought for by ornithologists in the Eastern United States. 
