

2.'21 



GALLINyE. 



Family TETUAONIDJE. (Bonaparte.) 



Genus Pterocles. ( Temminch.J 



Generic Characters. — Beak medium sized, compressed, slender 

 in some species; upper mandible straight, but curved near the 

 point; nostrils basal, half closed by a membrane, covered by 

 the feathers of the forehead, open below. Feet with short 

 toes, the under one hardly developed and articulated high up 

 the tarsus; the three front toes united to the first articulation, 

 and edged with a membrane; the front of the tarsi covered 

 with small very short feathers, the rest naked. Claws very 

 short, the hind one sharp edged, those in front obtuse. Tail 

 conical; in some species the two middle feathers are elongated 

 in a thread-like manner. Wings long, terminated in a point, 

 the first primary the longest. 



PIN-TAILED SAND GROUSE. 



Pterocles alchata. 



Pterocles alchata, 

 " setarius, 



Tetrao alchata, 



" caudacutus, 



" chata, 

 JEnas cata, 

 Gang a cata, 

 Chata-Flughuhn, 

 La Grandule, 



Stephens. 

 Temminck. 



LlNNiETJS. 

 GrMELIN. 



Pallas. 



VlEILLOT. 



Of the French. 

 Of the Germans. 

 Savi. 



