OCK> 



GALLING. 



Family PEBDICIDJE. ( Bonaparte J 



Genus Tetkao-gallus. ( Gray. J 



Generic Characters. — Beak much shorter than the head, broad 

 at its base; upper mandible arched near the point, compressed, 

 the commissure waved or undulated. Nostrils pierced in a 

 semicircle at the base of a swollen cere, and surrounded by 

 the feathers of the forehead. "Wings subacute, the second and 

 third primaries being the longest; tail large and rounded. 

 Tarsi short and stubby, equal in length to the third toe, 

 broadly shielded with scales; toes united by a slight membrane; 

 the hind toe is short, and does not touch tbe ground; claws 

 middle sized. 



CAUCASIAN SNOW PARTRIDGE. 



Tetrao-g alius Caucasians. 



Tetrao-g alius Caucasians, Gkay. Bonaparte. Schlegel. 



" Caspia, Gould. 



Telrao Caucasicus, Pallas ; Zoog., ii, p. 76, INo. 225. 



Telraogalle da Caucase, Of the Feench. 



Kauhasisches Alpenhuhn, Of the Germans. 



Specific Characters. — Upper plumage grey. The feathers of the 

 upper wing coverts and middle of the back broadly bordered with 

 ochreous brown on their outer web. The long feathers of the 

 flanks edged on both webs with still darker ochreous brown. 

 Front of the neck marked with the brown horse-shoe, like the 

 Grey Partridge. Length twenty-one inches and a half; carpus 

 to tip eleven inches ; tarsus and middle toe and claw each two 

 inches and a half; beak one inch and a half long, and circum- 

 ference at base two inches. 



