SUBFAMILY ODON7TOPHORINA. 193 
KEY TO THE GENERA. 
A. Claws moderate, normal. 
BOB WHITES. 
Colinius. 
Page 19. 
a, Crest, moderate, inconspicuous, 
PLUMED PAR- 
| TRIDGES. 
| Oreortyx. 
Page 4I. 
| SCALED PAR- 
6. Crest very long, slender, of two feathers. 
TRIDGES, 
cae pla, 
Page 49. 
HELMETED PAR- 
TRIDGES. 
Lophortyx. 
Page 55. 
c. Crest full, conspicuous. 
d. Crest recurved, of several feathers, en- 
larged at extremity. 
MASSENA PAR- 
TRIDGES. 
Cyrtonyx. 
Page 69. 
B. Claws very long. 
GENTS COLIN GS 
(Latin Codznus, synonymous with the Greek éprvé, ortyx, a quail). 
Colinus Less. Man. d’Ornith., vol. ii., 1828, p. 190. Type 
Tetrao vir ginianus, Linn. 
Body short, rounded; feathers of crown slightly rounded and 
erectile, but not forming a true crest. Tail about three-fifths 
length of wing. Sexes alike, save in the color of throats and 
superciliary stripes. 
Two species and two subspecies of this genus inhabit North 
America north of Mexico, Closely allied in habits and appear- 
ance three of them might easily be confounded by one not an 
expert, but the fourth, C. rz¢@gwayz, hardly called with propriety 
a North American species, differs completely in the color of its 
plumage from the others, 
