376 
ORTYX. COLIN. 
Generic Character. 
Rostrum altlus quam latum, 
breve, tenue, supra con- 
vexum,ad apicem obtusum 
et incurvatum. 
Nares laterales, in sulco 
sitae. 
Orhitce nudae ; caput plumo- 
sum. 
Pedes tetradactyli, mutici ; 
tarsi breves, 
Cauda brevis, rectricibus 
duodecim. 
Tetrao. Linn. Gmel. Shatv. 
Perdix. Lath. Temm. Briss. 
CoTURNix. Raii. Briss. 
BeaJc higher than broad, 
short, thin ; above convex, 
the tip blunt, and in^ 
curved. 
Nostrils lateral, situated in 
a groove. 
Orbits naked ; head feathered. 
four- toed, smooth; tarsi 
short. 
Tail short, consisting of 
twelve feathers. 
In these the beak is thicker and more gibbous 
than in Quails : the neck is slender, clothed with 
elongated, somewhat curled feathers, which gives 
a peculiar air : the nostrils are placed in a groove, 
situated on each side of the upper mandible : the 
space round the eye is naked : the tarsi are short, 
and the tail small, but longer than in the Quails. 
They perch on trees, and are all natives of Ame- 
rica. 
