486 
U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
are lighter, tlie superciliary stripe scarcely appreciable. The under parts are much whiter and 
without any of the yellowish brown ; the breast tinged with pale ash. The obsolete blotches 
at the tip of the tail feathers are more distinct. The wing appears a good deal longer. 
A skin from Los Nogales (6327) is still more similar to P. aestivalis , and if of the same 
species as those first described, is probably considerably older. The back is, however, 
lighter than in aestivalis , the interscapular blotches narrower and more restricted to the very 
middle of the back. The under parts are paler. The resemblance is, however, so close, that if 
the specimen were from Georgia At would be considered merely as a slight variation from 
the type. This specimen measures 6.20 inches ; the tail, 3.15 ; the wing, 2.60. It has a 
certain resemblance to the Zonotrichia botteri of Sclater, Pr. Zool. Soc. 1857, 214, from Orizaba, 
but is probably sufficiently distinct. 
List of specimens. 
Catal. 
No. 
Locality. 
When col¬ 
lected. 
Whence obtained. 
Orig’l 
No. 
Collected by— 
Length. 
Stretch 
of wings-. 
Wing. 
Remarks. 
Capt. Sitgreaves.... 
Dr. Woodhouse 
Dr. Heermann. 
63-28 
5035 
63-27 
Lt. J. G- Parke. 
Camp on Pecos river, Tex.. 
July 7,1855 
June —, 1855 
104 
84 
6.00 
7.50 
2.50 
Eyes brown ; feet yellow.. 
Major Emory. 
Dr. Kennedy .. 
PEUCAEA RUFICEPS, Baird. 
Jbnmodromus ruficeps, CAssiN,Pr. A. N. Sc. VI, Oct. 1852, 184. (California.)— Ib. Ulust. I, v, 1854, 135; pi. xx. 
Sr. Ch.— Above brownish ashy. The crown and nape uniform brownish chestnut. The interscapular region and neck with 
the feathers of this color, except around the margins. A superciliary ashy stripe, whiter at the bass of the bill. Beneath pale 
yellowish brown, or brownish yellow, darker and more ashy across the breast and on the sides of body ; middle of belly and 
chin lighter ; the latter with a well marked line of black on each side. Under tail coverts more rufous. Length, 5.50 ; wing, 
2.35 ; tail, 2.85. 
Hab .—Coast of California. 
This plainly-colored species lias the bill rather slender ; tail rather long, and considerably 
rounded ; the outer feathers .40 of an inch shorter than the middle ; the feathers soft, and 
rounded at the tip. The wing is short; the primaries not much longer than the tertials ; 
the second, third, fourth, and fifth, nearly equal ; the first scarcely longer than the secondaries. 
There is a blackish tinge on the forehead, separated by a short central line, as in Spizella 
socialis. The eyelids are whitish, and there is a short black line immediately over the upper 
lid. There is a faint chestnut streak back of the eye. The chestnut of the nape is somewhat 
interrupted by pale edgings. The blotches on the back melt almost insensibly into the colors 
of the margins of the feathers. The outer edges of the secondaries and tertials, and the 
outer surface of the tail, are yellowish rusty. The middle tail feathers show obsolete narrow 
transverse dusky bars. 
List of specimens. 
Catal. No. 
Sex. 
Locality. 
Whence obtained. 
Collected by— 
3831 
6341 
47296 
California_ 
Dr. Heermann_ 
3 
Calaveras county, Cal_ 
Lieut. Williamson- - 
San Francisco, Cal_ 
R. D.Cutts. 
Fort Tejon, Cal_ 
J. X. do Vesey_ 
