366 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



predominating, usually vermiculated with dusky, often more or less 

 speckled or barred with buffy, the scapulars sometimes spotted with black, 

 the outer webs of primaries often spotted with cinnamon- rufous or buffy. 

 Sexes alike in coloration or at least not conspicuously different. 



Range. — Southeastern Mexico to Peru, Bolivia, and central Brazil. 

 (Sixteen species.) 



KEY TO THE MIDDLE AMERICAN FORMS OF THE GENUS ODONTOPHORUS 



a. Chin and throat streaked black and white (southeastern Mexico to western 



Panama) Odontophorus guttatus (p. 373) 



aa. Chin and throat not streaked black and white. 



h. Breast black (highlands of Costa Rica and western Panama) . 



Odontophorus leucolaemus (p. 377) 

 bh. Breast not black. 



c. Breast and abdomen bright chestnut. 

 d. Darker, upper back clove brown to fuscous, more blackish than olivaceous 

 (tropical zone of Panama). 



Odontophorus erythrops coloratus (p. 372) 

 dd. Paler, upper back sepia to clove brown, more brownish olive than 

 blackish. 

 e. Dark bars on tibiae obsolete, light interspaces wider and paler (eastern 



Honduras) Odontophorus erythrops verecundus (p. 373) 



ee. Dark bars on the tibiae well defined, light interspaces narrower and 

 darker (tropical zone of Nicaragua and Costa Rica). 



Odontophorus erythrops melanotis (p. 370) 



cc. Breast and abdomen dark buffy brown, barred finely and irregularly with 



paler and with blackish. 



d. Interscapulars and upper back grayish, distinctly different from rest 



of upperparts (tropical zone of Panama, Colombia, and northwestern 



Venezuela) Odontophorus gujanensis marmoratus (p. 368) 



dd. Interscapulars and upper back not distinctly grayish, but brown like 

 rest of upperparts (tropical zone of southwestern Costa Rica and 

 extreme western Panama). 



Odontophorus gujanensis castigatus (p. 366) 



ODONTOPHORUS GUJANENSIS CASTIGATUS Bansa 



CniRiQuf Wood Quail 



Adult male. — Narrow forehead amber brown ; crown and occiput be- 

 tween chestnut-brown and argus brown; nape slightly paler and the 

 feathers obscurely and narrowly edged with pale grayish amber brown; 

 interscapulars and upper back between dark Dresden brown and Front's 

 brown heavily vermiculated with fuscous-black, and, more narrowly, with 

 light neutral gray; upper wing coverts dark mummy brown crossed by 

 widely spaced, narrow, wavy bars of pale tawny and terminally flecked 

 with white ; inner greater upper coverts, scapulars, and inner secondaries 

 similar but with the pale markings very much more abundant and more 

 rufescent — between Brussels brown and auburn — ^these markings largely 

 confined to the outer webs of the feathers, except for the scapulars, where 



