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U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY—GENERAL REPORT. 
CARDELLINA RUBRA, Bonap. 
Vermilion Flycatcher. 
Setophaga rubra, Swainson, Syn. Mex. Birds, in Philos. Mag. I, 1827, 368. 
Cardellina rubra, Bonap. Conspectus, 1850, 312.— Cassin, Ill. I, 1S54, 266; pi. xliii. 
Basileuterus ruber, Cabanis, Mus. Hein. 1851, 18. 
Sylvia miniata, Lafresnaye, Mag. Zool. 1836, pi. liv. (Not of Swainson.) 
Parus leucotis, Giraud, Texas Birds, 1841, plate. 
“ Sylvia argxjrotis, Licht.” Bonap. Consp. 
Sp. Ch. —Entirely of a dark crimson red ; darker above and a little brighter on the rump. Quills and tail feathsrs brown, 
edged with brownish red. Ear coverts silky grayish white. Length about 5.60 ; wing, 2.45 ; tail, 2.55. 
Hab. —Northern Mexico. 
The wing is considerably rounded ; the first quill shorter than the sixth ; the fourth quill 
longest; the third, second, and fourth, successively shorter. The tail appears nearly even. 
The propriety of introducing this species into the fauna of the United States is questionable. 
No specimens have as yet been found, even as far north as northern Tamaulipas, in Mexico. 
As one of the birds described in Mr. Giraud’s work, however, it is entitled to a notice. 
The measurements of the species will be found on the next page. 
List of specimens. 
Catal. No. 
Locality. 
Whence and how obtained. 
Collected by— 
561 
Northern Mexico_____ 
S. F. Baird. 
J. G. Bell. 
BASILEUTERUS, Cabanis. 
Basileuterus, Cabanis, Wiegmann’s Areliiv, 1847, i, 316. —Ib. Schomburgh’s Reise Brit. Guiana, 1847. Type, 
Sylvia vervnivora, Vieillot. 
Ch. —Bill stout, triangular ; broader than high ; the vertical outlines considerably convex. Rictus strongly bristled. Wings 
very short and much rounded ; considerably less than the tail ; first quill shorter than the secondaries. Tail long, much 
graduated ; the feathers narrow ; the lateral ones about .40 of an inch shorter. Tarsi rather long ; toes short. 
This genus hears some resemblance to Geothlypis ; the tail is, however, longer, the feathers 
narrower and more graduated. The wings are much shorter and more rounded ; the hill stouter, 
deeper, and thicker towards the end ; the rictus with bristles instead of without them. The 
toes are considerably shorter. Although not represented in the United States, I introduce it 
here for the fuller illustration of the Setophageae, and because Mr. Giraud describes several 
species, in his work on Texas birds, which are probably to be referred to here. 1 
1 The only species of the genus before me is— 
Basileuterus rufifrons, Cabanis. 
Setophaga rufifrons, Swainson, Anim. in Menag. 1838, 294. 
Basileuterus rufifrons, “ Cabanis,” Bonap. Conspectus, 1850, 314. 
Sp. Ch.— Top and sides of the head chestnut ; the rest of upper parts olive green ; the throat and fore part of breast yellow; 
the rest of under parts white, tinged on the side with brown. A well marked white superciliary stripe from the bill to the nape. 
Length about 5 inches ; wing, 2.15 ; tail, 2.50. For detailed measurements see next page. 
Hab. —Mexico. A specimen (No.-) received from Mr. Gould. An allied species from Nicaragua is given by Bonaparte, 
( B. delattrii, Comples Rendus ; Notes Orn. Delattre, 1854, 62,) differing in being entirely yellow beneath. 
