646 
U. S. P. R E. EXP. AND SURVEYS—ZOOLOGY-GENERAL REPORT. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When col¬ 
lected. 
Whence obtained. 
Orig. 
No. 
Collected by— 
Length. 
Stretch 
ofwings. 
Wing. 
Remarks. 
9362 
San Elizario, Texas.... 
Dec. —, 1855 
Major Emory. 
14 
Dr. Kennerly.. 
9363 
13 
10.00 
13.50 
4.00 
9364 
Q 
5 
9.50 
13.00 
4.00 
5086 
9 
Oct. 20, 1855 
150 
11.75 
14.25 
4.75 
dill black; feet gray.... 
5085 
149 
9372 
5084 
Nov. 27, 1855 
167 
11.00 
15.CO 
5.00 
gray; gums pale blue. 
9373 
Q 
26 
10.25 
14.25 
4.50 
9360 
s 
44 
10.00 
13.00 
5.00 
9360* 
Q 
65 
9361 
O 
9369 
Q 
9370 
<? 
Dr. Kennerly.. 
9.50 
13.00 
4.00 
CALLIPEPLA, Wagler. 
Callipepla, Wagler, Isis, 1832. Type Ortyx squamata, Vig. 
Ch.—H ead with a broad short depressed tufted crest of soft thick feathers springing from the vertex. Other character as 
in Lophortyx. 
The single United States species is of a bluish tint, without any marked contrast of color. 
The feathers of the neck, breast, and belly, have a narrow edging of black. 
CALLIPEPLA SQUAMATA, Gray. 
Scaled or Blue Partridge. 
Ortyx squamatus, Vigors, 'Zool. Jour. V, 1830, 275.— Abert, Pr. A. N. Sc. Ill, 1847, 221. 
Callipepla squamata, Gray, Gen. Ill, 1846, 514.— M’Call, Pr. A. N. Sc. V, 1851,222.— Cassin, Ill. I, v, 1854, 129 ; 
pi. xix.— Gould, Mon. Odont. pi. xix. 
Callipepla strenua, Wagler, Isis, XXV, 1832, 278. 
Tetrao cristata, De la Llaye, Registro trimestre, I, 1832, 144. (Cassin.) 
S P . Ch.— Head with a full broad flattened crest of soft elongated feathers. Prevailing color plumbeous gray, whitish on the 
belly, the central portion tinged with brownish ; the exposed surface of the wings tinged with light yellowish brown, and very 
finely and almost imperceptibly mottled. Head and throat without markings, light grayish plumbeous, throat tinged with 
yellowish brown. Feathers of neck, upper part of back and under parts generally, except on the sides and behind, with a 
narrow but well defined margin of blackish, producing the effect of imbricated scales. Feathers on the sides streaked centrally 
with white. Inner edge of inner tertials, and tips of long feathers of the crest, whitish. Crissum rusty white, streaked with 
rusty. Female nearly similar. Length, 9.50 ; wing, 4.80; tail, 4.10. 
Hab —Valley of Rio Grande of Texas. Not yet detected farther west. Most abundant on the high broken table lands and 
mezquite plains. 
In this species the elongated tertials reach nearly to the tip of the tail, which is long and 
graduated, the lateral feathers much narrower and an inch shorter than the middle. The white 
inner margins to the inner tertials constitute a straight line down the rump, and are bordered 
on the side next the shaft by a dusky line. The rump, tail coverts, and upper surface of tail 
are of a less pure lead color than the fore back, and absolutely mottled like the tertials. The 
pale reddish brown tinge along the middle of the belly, also pervades the scale-like margins of 
