FAMILY PHASIANIDAE 327 



Schonwetter (Handb. Ool., pt. 4, 1961, p. 224; pt. 5, p. 267) says 

 that one egg available was marked like the spotted eggs of Odonto- 

 phorus gujanensis marmoratus and gives the measurements as 37.6 x 

 27.9 mm. 



Individual variation in depth of color, especially on the lower 

 surface, is considerable in the series seen both from Costa Rica and 

 Panama, so much so that there is no apparent basis for recognition 

 of more than one race in this area. 



ODONTOPHORUS DIALEUCOS Wetmore: Tacarcuna Wood Quail; GalUto del 



Monte Fajeado 



Figure 1, Frontispiece 



Odontophorus dialeucos Wetmore, Smithsonian Misc. Coll., vol. 145, no. 6, 

 Dec. 16, 1963, p. 5. (1,450 meters elevation, 62 kilometers west of the summit 

 of Cerro Mali, Serrania del Darien, Darien, Panama.) 



Upper foreneck white, with a broad central band of black, mixed 

 with rufous-brown. 



Description. — Length, 220 to 250 mm. Male, crown black mottled 

 lightly with rufous and spotted finely with white ; superciHary streak 

 white ; a mottled brown band across the hindneck, becoming cinnamon- 

 buff where it joins the superciliary on either side ; back brownish 

 olive, barred and mottled with sooty black and cinnamon ; inner 

 secondaries and wing coverts snuff brown, finely marked with buffy 

 white ; tertials marked heavily with black ; upper foreneck white, 

 with a broad central band of black mixed with rufous-brown ; rest 

 of lower surface dull buffy brown to tawny olive, darker on flanks and 

 under tail coverts, mottled with sooty black and buffy white. 



Female, brighter brown on the lower surface. 



Immature, like female, but with black band across foreneck broader 

 so that it covers most of the area to the base of the bill ; white of 

 lower segment duller. 



Measurements. — Males (3 specimens), wing 128.8-131.4 (129.9); 

 tail 50.1-54.0 (52.5); culmen from base 19.8-20.0 (19.9); tarsus 

 45.2-47.6 (46.6) mm. 



Females (4 specimens), wing 125.6-132.0 (130.9) ; tail 46.4-50.4 

 (47.8) ; culmen from base 19.4-20.0 (19.7) ; tarsus 44.5-49.2 (46.5) 

 mm. 



Resident. In the subtropical zone of the southern end of the 

 Serrania del Darien ; known at present from Cerro Mali and Cerro 

 Tacarcuna. 



