82 



TETKAONID.55. 



brownish black. Total length 22 inches, wing 10-8, tail 6-5, 

 tarsus 1'9. 



Immature birds resemble the female in appearance, but the 

 general colour of the upper parts has less black intermixed and the 

 markings on the breast are coarser and less regular. 



Hah. " Sage-brush " plains of the Rocky Mountain plateau, north 

 into British America, south to New Mexico, South California, Utah, 

 and Nevada. 



a. 2 ad. sk. 



b. (S ad. sk. 



c. c? imm. sJc. 



Rocky Mountain?. 

 Fort Dufterin, July. 



Middle Fork, Snake R., 



Idaho Terr., July (C. H. 



Merriain). 

 Laramie River, Wyoming, 



Aug. {E. Cones). 

 Clear Fork, Nebraska, Sept. 



{F. V. Hayden). 

 f, g. J ad. et $ imm. Rocky Mountains, California. 



St. 



9. PEDIOCETES. 



Hudson Bay Co. ]P.]. 

 N. Amer. Boundary 



Commission [P.]. 

 Salvin-Godman Coll. 



d. 2 ad. sk. 



e. (J imm. sk. 



Salvin-Godman Coll. 

 Salvin-Godman Coll. 

 Dr. A. Barclay [P.]. 



Type. 

 Pediocretes, Baird, Rej). Expl. and Surv. ix. pt. 2, 



Zool. p. 625 (1858) P. phasianellus. 



Tail composed of 18 feathers, wedge-shaped, rather long ; the 

 middle pair more than twice as long as the outer pair. 



1st primary shorter than 2nd, intermediate in length between 

 6th and 7th ; 4th rather the longest. 



Axillaries long and white. 



Tarsus shorter than middle toe and claw. 



Range. N. America. 



Key to the Species. 



A. General colour above dark, the black on the 



upper parts predominatino: over the rufous, buff, 

 and white markings ; feathers of the chest 

 black, with a white heart-shaped patch in the 

 middle and a white frinoe round the margin. . j^Iiasianellus, p. 82. 



B. General colour above light, the rufous, buff, and 



white markings on the up])er parts predo- 

 minating over the black ; feathers of the chest 

 white, each feather with a concentric submar- 

 ginal black band colunibianm, p. 83. 



1. Pediocaetes phasianellus. 



Long-tailed Grous from Hudson's Bay, Udtv. Nat. Hist. B. pt. iii. 



p. 117, pi. (1750). 

 Tetrao urogallus /3, Linn. S. N. i. p. 273 (1766). 

 Tetrao phasianellus, Linn. S. K i. p. 273 (17G6) ; Forst. Phil. Trans. 



Ixii. pp. 394, 495 (1772) ; Gm. S. N. i. pt. ii. p. 747 (1788) ; Lath. 



Lid. Orn. ii. p. 635 (1790) ; Temm. Fir/, et Gall. iii. pp. 152, 701 



(1815): Sfejdi. in Shaw's Gen. Zool. xi. p. 284 (1819): Sabine, 



