Coes we IT, 
TETRAO TETRIX. 
PLAC @eGERO LS. 
GALLINZA. 
| Bill convex : the upper Mandible arched. Toes connected by: a 
membrane at the bottom. ‘Tail feathers more than twelve. 
GENERIC CHARACTER. 
A bare fcarlet {pot above the eyes. Legs feathered to the feet. 
SPECIFIC CHARACTER 
AND 
"Sr NO NY BES, 
Blue black. ‘Tail forked. Lower half of the {condary feathers 
of the wings white. 
Terrao Tetrix. Linn. Syft. Nat, 
T ETRAO TETRIX : nigro-violacea, cauda bifurca, remigibus fecun- 
| dariis verfus bafin albis, Lath. Ind. Orn. 2. 
p. 635. 3. 
Scop. Ann. I. No. 169, 
Kram. el. py 350. 2. 
Gmel, Syft. I. p. 748. 
ML Urogallus 
