175 
We now give a short arrangement oF the genera 
which have been already proposed by different or- 
nithologists. Those in capitals are what Mr fci wain- 
son considers the five leading forms, those in com- 
mon letters are the subgenera, of which one or two 
more will be necessary in both Perdix and Cryp- 
t urns. 
The Rasores, or third order of birds, contains the 
families Pavonid®, Tetraonidse, Cracid®, Struthio- 
nid®, Coin rabid®. 
The family of Tetraonid® contains the genera and 
subgenera 
Peupix. 
FrfincoliniiB. 
Grtyx. 
Cotumix. 
TETKAO. 
Lyrurus, 
Centro cereug. 
Lagopus. 
Syrrhaptes. 
Ptemcles. 
At tag! a ? 
CaYPTOKix. 
Outvois. 
Csvptuiujs, 
