AVES. 69 



GENUS MELEAORIS, Lin. Turkey. 



Head and upper part of the neck invested with a skin 

 without feathers, and papillated ; an appendage under the 

 throat and another conical one on the forehead ; coverts of 

 the tail short and stiff, capable of being erected ; weak spurs 

 on the males. 



GENUS NUMIDA, Lin. Guinea-Fowl. 



Head naked and surmounted with a callous crest ; fleshy 

 wattles at the bottom of the cheeks ; tail short and pendent ; 

 no spurs. 



GENUS PHASIANUS, Lin. Pheasant. 



Cheeks partially divested of feathers and covered with a 

 red skin ; feathers of the tail variously disposed in the form 

 of a roof. 



SUBGENUS GALLUS. Cock. 



Head surmounted with a fleshy vertical crest; inferior 

 mandible furnished on each side with fleshy wattles ; quills 

 of the tail forming two vertical planes, back to back ; a long 

 spur. 



SUBGENUS PHEASANT PROPER. 



Head without fleshy crest ; beak and cheeks naked ; tail 

 long, displayed, the quills being spread, each in two planes, 

 one covering the other as in a roof. 



" "' -^- "; '. v .-,"'., ' ' -. ' 



GENUS TETRAO. 



A naked band, most usually red, holding the place of an 

 eyebrow. Two subgenera. 



SUBGENUS TETRAO, Lath. Grouse. 



Feet covered with feathers; no spurs; toes naked; tail 

 round or forked. 



SUBGENUS LAGOPUS. Ptarmigan. 



Toes as well as feet covered with feathers ; tail square or 

 round. 



GENUS PERDIX. 



Tarsi as well as toes naked. Four subgenera. 



SUBGENUS FRANCOLTNUS, Tern. 



Beak long and strong ; tail enlarged ; spurs strong. 



