334 U S. P. E. R, EXP. AND SURVEYS ZOOLOGY— GENERAL REPORT. 
The upper outlines of the hill is considerably more curved. The first primary is a good deal 
shorter. The tail feathers are more acuminate, the inner wehs slightly concave at the ends. 
The differences most strongly insisted on hy Swainson are in the wings, which here are shorter 
and more rounded ; the first quill considerahly shorter instead of decidedly longer than the 
fifth. 
Specimens lahelled Phyllomanes chivi, (Lanius agilis, Licht.) by Cahanis, and received from 
him, appear precisely the same in every respect. 
This species, if found in the United States, is certainly very rare. I have never seen a speci- 
men, nor do I know of any preserved in any cabinet. It is not impossible, but, on the contrary, 
very likely, that the "young bird" mentioned by Swainson as found on the banks of the 
Columbia may have been the V. gilvus which occurs there, and which was otherwise unknown 
to the author. The description is made from his Brazilian specimen. 
It is quite difficult to say which is the proper name of the present species, before ascertaining 
whether more than one species be contained in the synonymy quoted above. The descriptions 
of neither V. virescens nor chivi contain any positive specific indications, while agilis seems 
unquestionably the same with the bartramius, of Swainson, from Brazil, and in any event will 
have priority over it. 
List of specimens. 
Catal. No. 
Locality. 
Whence obtained. 
2034 
10174 
10173 
8050 
Brazil 
Jas. Taylor 
Southern Brazil. 
do 
J. Gould 
VIBEO ALTILOQUDS, Gray. 
Whip Tom Kelly. 
Muscicapa alliloqua, Vieill. Ois. Am. Sept. I, 1807, 67; pi. xxxviii. 
Vireo altiloquus, Gray, Genera.— Gambel. Pr. A. N. Sc. IV, 1848, 127. (Florida.) 
Vireosxjhia alliloqua, Bonap. Consp. 1850, 330.— Cassin, Pr. A. N. S. V, Feb. 1851, 152.— Ib. 111. N. Am. Birds, I, 
1853, 8 and 221, pi. xxxvii. 
Vireo longirostris, Sw. F. Bor. Am. II, 1831, 237.— Nottall, Man. I, 2d ed. 1840,359. 
? Phyllomanes mystacalis, Cabanis, Ornith. Not. in Wiegmann's Archiv, 1847, i, 348. 
? Vireosylvia olivacea, Gosse, Birds Jam. 1847, 194. 
? Vireosylvia frenala, Dubus, Bull. Acad. Belg. XXII, I, 1855, 150. 
Sp. Ch.- — Very similar to V. olivaceus, but with a short dusky maxillary line. Bill longer. 
Hub.— The coast of Southern Florida and the West Indies. 
This species is very similar to the V. olivaceus in the olivaceous upper parts, and ashy crown 
bordered on each side by a darker shade along the whitish superciliary stripe ; the plumbeous 
stripe from the bill through and behind the eye ; the under parts white, with a faint tinge only 
of yellow on the under tail coverts, and a stronger tinge of olivaceous on the sides. There is, 
however, in addition to this, a narrow line of dusky ash or plumbeous, continuous with the 
under side of the rami of the lower jaw, and extending back as far as the somewhat similar 
stripe through the eye does. The tail is nearly even ; the second quill appears to be the 
