58 TETKAONID^. 



Tetrao lagopodi-tetricides, Simdev. Svensh. Fogl. p. 255 (1856) ; 



Collett, Fork. Vid. Selsk. Christ. 1872, p. 242. 

 Tetrao canus ?, Degl. S,- Gerbe, Orn. Euroj). ii. p. 50 (1867). 

 Lagopus tetrici-albus, Collett, Fork. Vid. Selsk. Christ. 1872, p. 238. 

 Tetrao lagopodo-tetrix, Boffd. Consp. Av. Jtoss. fasc. i. p. 37 (1884). 

 Tetrao albo-tetrix (hybridus), Henke, Z. ges. Orn. ii. p. 47, pi. iii, 



(1885) [$]. 

 Lagopus albus X Tetrao tetrix, Henke, Z. ges. Orn. 1886, p, 267 ; 



Meyer, P. Z. S. 1886, p. 419 ; Collett, P. Z. S. 1886, p. 224, 



pis. xxi., xxii. ; Henke, MT. Ver. Wien, 1887, p. 126. 

 Tetrao tetrix albus, Meyer, Unser Aiier-, Racket- und Birkwild, etc, 



p. 75, pi. xiv. (1887). 

 Tetrao albus tetrix, Meyer, Unser Auer-, Rackel- und Birkivild, etc, 



p. 81, pi. XV. (1887). 



a. S ad. St. Norway. Prof. R. Collett [P.]. 



Hybrid hetiueen Lyrurus tetrix and Tetrastes bonasia, 



Tetrao bonasides, Nilss. Skand. Faun. i. p. xxxii (1824). 



Tetrao tetrix X Bonasa betulina. Dresser, P. Z. S. 1876, p. 345 ; 



Pleske, Mem. Ac. Petersb. (7) xxxv. no. 5, p. 1, pi. fig. 1 (1887). 

 Tetrao bonasio tetrix, Bogd. Consp. Av. Moss. fasc. i. p. 36 (1884) ; 



Kolfh. (Efv. Ak. Fork. 1891, p. 196. 

 Tetrao tetrix bonasia, Meyer, Unser Auer-, Rackel- und Birkicild, 



etc. p. 91, pi. xvi. (1887). 



Hybrid between Lyrurus tetrix and Phasianus colchicus. 



Tetrao tetrix X Phasianus colcbicus, Sabine, P. Z. S. 1834, p. 52 [Corn- 

 wall] ; Eyton, P. Z. S. 1835, p. 62 ; Meyer, Nature, xxxiv. p. 218 ; 

 Angus, fr. N. H. Soc. Glasgow, 1884-5, p. 260, pi. iii. ; Fi-itsch, 

 3IT. orn. Ver. Wien, 1886, p. 98, pi. ; Tschusi u. Delia-Torre, Ornis, 

 1890, p. 134 ; Millais, Game B. p. 40, pi. (1892). 



Tetrao tetrix colchicus, Meyer, Unser Auer-, Rackel- und Birkunld, 

 etc. p. 93, pi. xvii. a887). 



a. S ad. sk. Northumberland. Duke of Northumberland [P.], 



2. Lyrurus mlokosiewiczi. 



Tetrao tetrix, Nordm. Obs. Faun. Pont. p. 219 (1840). 



Tetrao mlokosiewiczi, Tacz. P. Z. S. 1875, p. 266, woodcuts [Eastern 



Caucasus]; Dress. B.Eur, v. p. 219, pi. 488 (1876) ; v. Pelz. MT. 



orn. Ver. Wien, 1877, p. 25 ; Vian, Bull. Soc. Zool. Fr. ii. p. 37 



(1877) ; Gould, B. As. vi. pi. 66 (1879) ; Seebohm, Ibis, 1883, p. 26 ; 



id. P. Z. S. 1884, p. 409 ; Radde, Orn. Caticas. p. 358, pi. xxiii. 



(1884) ; Bogd. Consp. Av. Ross. fasc. i. p. 29 (1884) ; Lorenz, Beitr, 



Orn. Caucus, p. 46, pis. iii. & iv. (1887) ; Meyer, Unser Auer-, 



Racket- und Birkivild, p. 18 (1887). 

 Tetrao acatoptricus, Radde, Orn. Caucus, p. 358 (1884); id. J,f, O, 



1885, p. 79. 



Adidt male. General colour deep black ; neclv and mantle slightly 

 glossed with bluish ; primaries dark brown, lighter on the outer 

 web ; tarsi smoky brown : inner half of the under wing-coverts and 

 axillaries pure white ; under tail-coverts very short, falling far 

 short of the middle tail-feathers; the outer tail-feathers curved 



