552 
ON THE CLASSIFICATION OP BIRDS. 
Crax, Linn. Bill various. 
Wings short. Tail length- 
ened. Feet rather large. 
The hind toe long, and 
placed on the same plane 
with the others. Claws 
curved. 
Craar, Linn. (Jig.SOi.) Bill 
moderate, compressed : 
the culmen curved from 
its origin ; the base 
covered with a cere, in 
which are the naked nos- 
trils, having their aper- 
ture long, curved, and linear. Head crested. 
C. globifera. PI. Enl. 86. 
Ourax, Cuvier. Front 
plumed. Bill very short, 
as high as it is long, great- 
ly compressed, without 
a cere. The nostrils 
transverse, nearly hid by 
the frontal feathers. 
{jig. 305.) 
O. erythroryiichus. PI. Col. 153. 
Ortalida, Merrem. Bill short, high; the culmen much 
arched. Cheeks naked, warty. The throat with a 
naked stripe on each side. 
O. ganulus. PI. Enl. H6. 
Penelope, Linn. Bill small, slender, much longer than 
high ; the base straight, hut the culmen curved be- 
