175 
We now give a nhort arrangement of the genera 
wliicli liave been alreaily pnjpoaetl hy different or- 
riilnilo^n?itft- Those in rapiials are what Mr S^voin- 
ioii rotisiderft the five Icailing furms, those in com- 
mon letterH are tlie suhi^cnera, uf wlud) one or two 
more will be netiessary in both Perdix and Crj'p- 
turti<t. 
TJie Rsi^oreAf or third order of birds, contains the 
famtiii'^e FavonidaSj TetraonidEE, Cracidse, Slrutldo- 
Dida?, Cohimbidee. 
'l ite family of Tetraonidae contains the genera and 
ftubgenera 
Fmncolintti. 
Ortyx, 
Coturnix. 
Tethao. 
CcTitroccTcus. 
Lngopus. 
Syrrtiaptcs, 
Tt^ratilcn. 
AttivgU? 
CllYPTOMJX. 
Crvptukus, 
