2. LTRURUS, 53 



Hah. Summits of the Rocky Mountains : south to New Mexico ; 

 north to Fort Halkctt, British America ; westwards to Oregon, 

 Washington Territory, and British Columbia. 



a-d. S ad. sk. et Cascade Mountains, summer J. K. Lord, Esq. [P.], 



St. & pull. sk. and winter. 



e. Ad. sk. llocky Mountains, winter. Gould Coll. 



/. $ ad. sk. W. side. Rocky Mouutains, J. K. Lord, Esq. [P.]. 



summer. 

 g-i. (S 2 ad. sk. Colorado, summer, autumn, Salvin-Godman Coll. 



and winter (C. E. Aiken). 

 k. c? imm. sk. Colorado Mts., W. of Denver, Salvin-Godman Coll. 



autumn (Z). Thompson). 

 I. 6 ad.sk. Blaine's Peak, Sept. (C. E. Salvin-Godman Coll. 



Aiken). 



2. LYRURUS. „ 



Type. 



Lyrurus, Swains. Faun. Bor.-Amer. ii. p. 497 (1831) L. tetrix. 



Lym-us, Gould, P. Z. S. 1837, p. 132 L. tetrix. 



Tail composed of 18 feathers, the outer ones more or less curved 

 outwards and longer or much longer than the centre pair. 



1st primary much shorter than the 2nd and falling between the 

 7th and 8th ; the 4th slightly the longest. 



Tarsi entirely feathered, shorter than the middle toe and claw. 



Toes naked, pectinated on the sides. 



AxiUarics long and pure white. 



Range. Europe and Northern Asia. 



Key to the Species. 



A. Plumage mostly black. 



a. Under tail-coverts piu'o white tetrix cJ , p. 53. 



b. Under tail-coverts black wiokosietoicd d , p. 58. 



B. Plumage mostly rufous or buff, barred with 



black. 



c. Black bars and marking on breast much 



coarser ; tail 4'5 tetri.v $ , p. 53. 



d. Black bars and marking on breast much 



tiuer ; tail 55 mlokosieioiczi $ , p. 58. 



1. Lyrurus tetrix. 



Black Game, Alhin, N. II. Bird.'^, i. pi. 22 & ii. pi. 34 (1738). 

 Urogallus minor, Hat/, Si/n. p. 53, A. 2; Briss. Oni. i. p. 18G (1760). 

 Tetrao tetrix, Lin?/. 6'. N. i. p. 274 (1700) ; Gm. S. N. i. pt. ii. p. 748 



(1788)', Lat/i. Lid. Oni. ii. p. 035 (1790); Beseke, Beytr. Viiy. 



Kurl. ^. 69 (1792); Bechd. Nat. Deutschl. iii. p. 483 (1793); 



Pall. Zooyr. Boxko-As. ii. p. 59, pi. 52 (1811) ; Penn. Brit. Zool, i. 



p. 362, pi. 40 (1812); Kilss. Om. Svec. i. p. 300 (1817) ; Steph. in 



Skaic's Gen. Zool. p. 279, pi. 19 (1819) ; Pour, Orn. Prov. ii. p. 28, 



pi. 253 (1830) ; Nihs. III. f,,. Skand. Faun. i. pis. 27, 61 (1832) ; 



JS'aum. Nat. Vog. Deut^M.'Vi. p. 324, pi. 157 (1833) ; Gould, B. 



