NATURAL SCIENCES OF PHILADELPHIA. 
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female(?) and unusually light colored , we have had our drawing made, on 
account of its having been procured in the American territory,” while his 
description is taken “from a handsome male specimen from Arctic America.” 
The genus Pediocaetes therefore is composed of the two following species, 
with this diagnosis : 
General color white and brownish yellow with irregu- 
lar black-markings. Beneath pure white, the feath- 
ers on the breast and flanks with brown U-shaped 
markings. Throat buff. Pediocaetes Columbianus. 
General color white and black, with irregular dark 
brown markings. Beneath pure white, with V-shaped 
black marks on the breast and sides, broader and 
closer than those of its relative. Throat white in- 
terspersed with small black marks Pediocaetes phasianellus . 
The species may be more fully described thus : 
Pediocaetes Columbianus (Ord.) Elliot. 
Tetrao phasianellus ? Ord. Guthrie’s Geog., 2d Am. ed., 1815, p. 317. 
Phasianus Columbianus , do. do. 
Tetrao phasianellus , Bon. Syn., 1828, p. 127. 
Do. “ Am. Ornith., vol. iii. 1828, p. 37, pi. xix. 
Do. Nuttall, Man. vol. i. 1832, p. 669. 
Do. Audub. Ornith. Biog., vol. iv. 1838, p. 569, pi. 382. 
Do. “ Syn. 1839, p. 205. 
Do. “ Birds of Amer., vol. v. 1842, p. 110, pi. 298. 
Do. Newberry, Cal. & Or. Route. Rep. P. R. R. Surv., vol. 
vi. iv. 1857, p. 94, 
Tetrao ( Centrocercus) phasianellus. Swain, Faun. Bor. Am., vol. ii. 1831, p.361. 
Do. Bonp. Comptes Rendus, xlv. 1857, p. 428. 
Tetrao urophasianellus, Doug. Trans. Linn. Societ., vol. xvi. 1829, p. 136. 
Pediocaetes phasianellus , Baird, vol. ix. P. R. R. R., p. 626. 
Head and throat brownish yellow, the front, crown, occiput and cheeks 
irregularly marked with black or very dark brown ; superciliary band whitish ; 
back ferruginous brown, variously spotted with black or brownish yellow ; 
wings brownish grey, with large spots of white on all the coverts ; transverse 
bars on the secondaries, and the outer webs of the primaries which are dark 
brown, spotted with the same ; the tail feathers have the inner web white, 
outer brownish gray, dotted with darker brown ; the central feathers are elon- 
gated and same color as the back— under parts are pure white, the feathers on 
the breast and flanks having a brown U-shaped mark. Bill black ; feet brown. 
Rah. — Northern prairies from W isconsin to Oregon and Washington territories. 
Pediocaetes phasianellus, (Linn.) Elliott. 
Tetrao phasianellus, Linn. Syst. Nat., vol. i. 10 ed., 1758, p. 160. 
Do. Forst. Philos. Trans., lxii. 1772, p. 394 and 495. 
Do. Gmelin Syst. Nat., vol. i. p. 747. 
Do. Lath. Ind. Ornith., vol. ii. p. 635. 
Tetrao urogallus, var. B., Linn. Syst. Nat., vol. i. ed. 12th, p. 273. 
Tetrao phasianellus, Bon. Amer. Ornith., vol. iii. 1828, text Sharp-tailed 
Grouse. Pennant. 
Pediocaetes Kennicotti, Suckley, Proc. A. Nat. Sc., 1861. 
General color black. Top of head black, a few faint marks of rusty towards 
the occiput, sides of head black, the feathers tipped with white ; those on the 
side and back of neck tipped with rusty ; throat white, spotted with black. 
The back is also black, the feathers margined with rufous brown ; the rump 
is lighter, caused by the feathers being tipped broadly with grayish ; the 
elongated central feathers of the tail are (in the specimen before me) jet 
black, irregularly crossed with yellowish white and gray. Wings blackish 
brown, with large white spots on all the coverts, in addition to the rusty 
1862 .] 
