486 U. Ss. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
are lighter, the 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. aesiivalis, 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 it 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. Locality, When col- Whence obtained. | Orig’!| Collected by— | Length. Stretch} Wing. Remarks. 
No. | lected. No. of wings. 
| 
SOo8bo San Antonio. 000. oeeecceces|soc occeeccccee| Capt. Sitgreaves....|...0.| Dr. WOOdHOUSE [0000 ceceleceeccce 
GSSB i UDEXAS!cnsaccsltisossseiisicccc|sconosion evon.s|\ Mute de Ge PATKC rs s00llemsiane Dr. Heermann,|....s0.+ Seeeoves|ans 
5035 | Camp on Pecos river, Tex..| July 7,1855| Capt. J. Pope...... 1 DAN | eatetatelojalo\sielstelarsios 6,00 
6327 Los Nogales, Mex..........| June —,1855| Major Emory ...... 84 |. Dr. Rennerly ..|ccsiccccleccovecs 
| 
PEUCAEA RUFICEPS, Baird. 
Ammodromus ruficeps, Cassin, Pr. A. N. Se. VI, Oct. 1852, 184. (California.)—Is. Illust. I, v, 1854, 135; pl. xx. 
Sp. Cu.—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 base 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, 
2.353 tail, 2.85. 
Hab.—Coast of California. 
This plainly-colored species has 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— 
| —— = s 
Ripa 
3831 \ eat eae Calitomiagesseese=aessemosee es 1B ids ira day a ee SS ee AGES SERaS Ss oo oeeaasrostaccons 
6341 | rol Calaveras county, Cal_. --.-----| Tieut:: Williamson’ 222ass-sece" "Dr: Heermannacs.se seen easeee 
ALD Gia eco ieSanekirancisco s@alles-sesesn=- = Ri D: Cuttesc2 ot lo Sete Sh SAE Se See 
eee ece heir Horielejon iCal esses ass oid) 2S. Oe) VeSCYin cose cone set aa ee |p ae neem a ee ae Ren eee ete 
