TETRAONID.E— THE «i ROUSE, ETC. 15 



Four genera are found in the United States, but only one of 

 these occurs east of the Mississippi Uiver. the i-emainder belong- 

 ing to the southwestern border and the Pacific coast. Some of 

 the western species are strikingly elegant l)irds, especially the 

 Mountain Quail {Orwrtyx pictus) and Valley Quail {Lophortij.i' 

 caUfornicm) of the Pacific coast. The genera ('(iU!jX'j>l(i and 

 Cyrt(my,v belong to Mexico and contiguous border of the United 

 States, each having a single species within our limits. 



Genus COLINUS Lesson. 



Or(i/x Stephens, Shaw's Gen. Zonl. xi, 1S19. rreoccupied. Typo, Telrao iiirginianus 

 Linn. 



Colinas Less. Man. ii, 1828, 190. Same type. 



Gen. Chae. Bill stout. Head without crest. Tail short, searculy more than half the 

 wing, composed of moderately soft feathers. Wings normal. Lees distinct, well developed , 

 the toes reaching considerably beyond the tip oJ the tail; the lateral toes short, equal, their 

 claws falling decidedly short of the base of the middle claw. 



The genus VolinnH embraces numerous species, all more or less 

 resembling the well-known Bob-white of the United States. They 

 are chiefly confined to Mexicp, Central America, and the (Jreater 

 Antilles. North America and the West India Islands contain 

 but one species, and this is so variable in plumage that it 

 is only at extreme points of its range that differences acquire 

 sufficient constancy to be considered worthy of special no- 

 tice. The regions of its extremes of variation are the north- 

 eastern, southeastern, and southwestern limits of its rafige: the 

 modifications attaining in Cuba and in Texas suflficient value 

 to have been deemed of specific import.tnce. But eompai-ing 

 even the three extremes of plumage, the differences are found 

 to consist only in a varying amount of the several colors, 

 specimens from intervening regions forming the connecting 

 links. 



Colinus virginianus (Linn.) 



BOB WHITE. 



Popular synonym}. "Qimir (in N"'W England ami most portions of the Mississippi Val- 

 li'y); "Partridgo" (in soulhurn States and parts of the interior); Amerinan Onuil; 

 Virginia Quail; Cartridge or Colin. 



Tetran virgininnun LiNN. S. N. cd. ID. i, VITA. 161 ; od. 12, i. 17l». 277. 

 Perdu viruiniana Lath. 179n — Wii,s. Am. Orn. vl, 18!2. 21. pi. 17.— AuD. Orn. Biog. i. 

 1831. 38S; v, 1839. Ml. pi. 7fi.— NUTT. Man. I. 18:«. Mi>. 



