626 U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
Comparative measurements. 
| | | ] 
Catal. Locality. Sex. | Length. | Wing. Tail. | Tarsus. | Middle | Its claw Bill | Along | Specimen 
No. | toe. | alone. | above. | gape. | measured. 
guile Suc eas oe | | 
4543 | Fort Pierre -...---.- 3 | 15. 30 | 8. 50 5. 24 1.74 2.02 | 0.55 0.94 | 1.12 Skin... 
| | 
9999 | Spokan river, W. T--. eal 16 50 | 7.90 4.98 1.70 1.98 | 0.48 0.92 |) 1.00 Skin-._- 
| 
PEDIOCAETES PHASIANELLUS, Baird. 
Sharp-tailed Grouse. 
Tetrao phasianellus, Linnanus, Syst. Nat. I, ed. 10, 1758, 160. (Not in 12th edition.)—Forsrrr, Phil. Trans. 
LXII, 1772, 394, 495.—Gne.in, Syst. Nat. I, 747.—Laruam, Ind. Orn. II, 635.7? Orn. Guth- 
rie’s Geog. 2d Amer. ed. II, 1815, 317.—Bon. Syn. 1828, 127.—Is. Amer. Orn. III, 1828, 37; 
pl. xix.—Nourrati, Man. I, 1832, 669—Avup. Orn. Riog. IV, 1838, 569 ; pl. 382.—In. Syn. 
1839, 205.—Is. Birds Amer. V, 1842, 110; pl. 298.—Newserry, Zool. Cal. & Or. Route ; 
Rep. P. R. R. Surv. VI, rv, 1857, 94. 
Tetrao ( Centrocercus) phasianellus, Swanson, F. Bor. Am. II, 1831, 361. 
Centrocercus phasianellus, Janpine, Game Birds, Nat. Lib. Birds, [V, 136; pl. xvi.—Bonap. Comptes Rendus, XLV, 
1857, 428. 
Tetrao urogallus, Var. 8. Linn. Syst. Nat. I, ed. 12th, 273. 
? Phasianus columbianus, Orv, Guthrie’s Geog. 2d Am. ed. II, 1815, 317; based on the Columbia pheasant of Lewis 
& Clark, IH, 180. 
? Tetrao wrophasianellus, Doveras, Trans. Lin, Soc. XVI, 1829, 136. Supposed by Richardson to be young in ferru- 
ginous plumage. ; 
Long-tailed grouse, Epwarps ; Sharp-tailed grouse, PENNANT. 
Se. Cu.—Tail of eighteen feathers. Colors, white, black, and brownish yellow. Above with transverse bars ; the wings with 
round white spots. Beneath pure white, with dark V-shaped blotches on the breast and sides. Length, 18.00; wing, 8.50; 
tail, 5.24. 
Hab.—Northern prairies and plains, from Wisconsin to Cascades of Oregon and Washington. 
Neck without the tuft of elongated feather of C. cupido, but with a bare space on each side. 
A papillose naked skin along the superciliary region, bordered externally by feathers. Tarsus 
very densely feathered, but with a narrow bare space behind; the feathers extending on the 
sides of the toes for nearly half the length of the basal joint. Middle toe and claw a little 
longer than the tarsi, the sides of the toes extended and provided with a conspicuous pectination 
of linear processes. ‘Tail long, cuneate, the feathers eighteen in number and all graduated ; 
the central pair elongated considerably beyond the rest, (one to one and a half inches.) The 
tail coverts reach nearly as far as the tips of the third innermost pair of tail feathers ; the whole 
tail is about two-thirds the length of wings. 
In form this species differs from ewpido in the absence of the pointed feathers of the neck. The 
tail is of much the same shape, but the feathers more abruptly graduated; the outer about one- 
third the eighth and one-fourth the ninth; this may possibly prove to be an extended tail 
covert. The bill is much stouter, the culmen more convex and rising at the base. The 
pectinated processes of the toes are much longer, forming a broader base to the toes. The tarsi 
are more densely plumose, the feathers not stopping at the base of the toes, but extending 
beyond them. 
The general color above is light brownish yellow, varied with black; the wings with rounded 
spots of white. The under parts are pure white, the feathers on the breast and sides with a 
brown V-shaped mark, the legs of which are nearly parallel with the outline of the feather. The 
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