7 THE SCALY PARTRIDGES. | 115 
Tail about three-fourths of the length of the wing, and com- 
posed of fourteen feathers. | 
Tarsus shorter than the middle toe and claw. 
Only two small forms are known, 
I. THE SCALY PARTRIDGE. CALLIPEPLA SQUAMATA. 
Oriyx squamatus, Vigors, Zool. Journ. v. p. 275 (1830). 
Tetrao cristata, La Llave, Reg. Trim. i. p. 144 (1831); id. 
Nat. Mex. vii. App. p. 65 (18384). 
Callipepla strenua, Wagler, Isis, 1832, p. 278. 
Callipepla sguamata, Gould, Monogr. Odontoph. pt. i. pl. 19 
ime4aye Cassin, Il. B; Calif. p, 120, pl. xix (nea). 
Bendire, N. Am. B. p. 18, pl. i. figs. 4, 5 [eggs] (1892); 
Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 395 (1893). 
Callipepla squamata pallida, Brewster, Bull. Nutt. Orn. Club, vi. 
p. 72 (1881). 
Adult Male——General colour above grey, browner on the wings 
and lower back, each feather of the neck, mantle, chest, and 
sides of breast edged with black, giving these parts a scaled 
appearance ; throat and middle of breast and belly, whitish-buff; 
no dark chestnut patch tn the middle of the belly. ‘Total length, 
10 inches; wing, 4°8; tail, 3°6; tarsus, 1°2; middle toe and 
claw, 1°35. 
Adult Female——Differs slightly in having dusky shaft-stripes 
to the feathers of the throat, and in being slightly smaller than 
the male. 
Range-—New Mexico, Arizona, Western Texas, and North 
and Central Mexico, from Chihuahua and San Luis Potosi, as 
far south as the city of Mexico. 
Habits.—“‘The Scaled Partridge, usually called the Blue Quail 
and also the White Top-knot Quail, is a constant resident in 
South-western Texas from about latitude 28° northward along 
the valley of the Rio Grande, as well as in a considerable por- 
I 2 
