308 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



g. Smaller, wing 97 mm. (Key West; extinct; doubtfully distinct from 



the next race) Colinus virginianus insulanus, ad. $ (p. 328) 



gg. Larger, wing over 100 mm. (Florida Peninsula; introduced in 



Bahamas) Colinus virginianus floridanus, ad. $ (p. 326) 



//. Reddish color of upperparts paler— hazel or paler. 



g. Black areas of upperparts well developed and extensive (arid 

 tropical zone from central Tamaulipas to eastern San Luis 



Potosi) Colinus virginianus maculatus, ad. $ (p. 331) 



gg. Black areas of upperparts reduced and grayish (between Tropical 

 and Lower Sonoran Zones from central Tamaulipas to south- 

 eastern San Luis Potosi). 



Colinus virginianus aridus, ad. 5 (p. 332) 



ee. No broad conspicuous cinnamomeous area below black pectoral band, 



sometimes washed with cinnamon, but not conspicuously enough to 



form a definite band (southeastern Canada, eastern and central 



United States; introduced in West Indies and western United States). 



Colinus virginianus virginianus, ad. 5 (p. 312) 



hh. White of chin and throat not completely bordered with black. 



c. Breast and most of abdomen white. 



d. Slightly paler, the scapulars and upper wing coverts only slightly suffused 

 with rufescent (western Guatemala). 



Colinus leucopogon incanus, ad. $ (p. 359) 

 dd. Slightly darker, the scapulars and upper wing coverts richly suffused 

 with rufescent (El Salvador west of Lempa River). 



Colinus leucopogon hypoleucus, ad. $ (p. 358) 

 cc. Breast and most of abdomen not white. 

 d. With a well-developed occipital crest. 

 e. Auriculars pale buflfy to whitish ; crest pale wood brown to buffy 

 (Pacific lowlands of western Panama). 



Colinus cristatus panamensis, ad. $ (p. 363) 



ee. Auriculars dusky brown ; crest dark brown (chiefly extralimital — the 



Guianas, Brazil, and Venezuela ; introduced in Grenadines and Virgin 



Islands) Colinus cristatus sonnini, ad. $ (p. 360) 



dd. With no well-developed occipital crest (El Salvador, east of Lempa 



(River) Colinus leucopogon leucopogon, ad. $ (p. 357) 



oa. Chin and upper throat not pure white. 



h. Chin and upper throat blackish or blackish brown, uniform or spotted with 

 white. 

 c. Abdomen uniform hazel brown. 



d. A distinct white superciliary or postocular stripe. 

 e. Sides of head and neck partly chestnut (southern Arizona and Sonora). 



Colinus virginianus ridgwayi, ad. $ (p. 344) 

 ee. Sides of head and neck plain black (eastern Chiapas and western 



Guatemala) Colinus virginianus insignis, ad. $ (p. 338) 



dd. Superciliary region entirely black, but sometimes with an indication of 

 a white postocular stripe. 

 e. Upper breast solid black. 

 /. Lower breast and belly solid chestnut; rufous above fairly extensive 



(western Oaxaca) Colinus virginianus atriceps, ad. $ (p. 344) 



//. Lower breast and belly solid chestnut ; usually marked with black ; 

 rufous above much restricted (San Benito and Tapachula, 



Chiapas) Colinus virginianus salvini, ad. $ (p. 341 ) 



£e. Upper breast mainly rufous, with black streaks or squamations. 



