250 BULLETIN 50, UNITED STATES NATIONAL MUSEUM 



Adult female.— Wing 139; tail 123.7 ; culmen from the base 18.5 ; tarsus 

 49; middle toe without claw 36.7 mm. (1 specimen). 



Range. — Resident in the highlands of northern Guatemala above 3,000 

 feet, in states of Alta Vera Paz (Coban, Finca Sepacuite), Huetuetenango 

 (Barrillos), and El Quiche (Nebaj). 



Type locality. — Coban, Guatemala. 



Onyx leucophrys Gould, Proc. Zool. Soc. London, 1843 (1844), 132 (Coban, Vera 

 Paz, Guatemala; coll. Derby Mus., now Liverpool Mus.). 



Dendrortyx leucophrys Gould, Mon. Odontoph., pt. 2, 1846, pi. 21 and text.— Sclatee 

 and Salvin, Ibis, 1859, 226 (Coban, Guatemala).— Gray, List Birds Brit. Mus., 

 pt. 5, Gallinae, 1867, 73.— Ogilvie-Geant, Cat. Birds Brit. Mus., xxii, 1893, 394, 

 part (Dueiias, Guatemala) ; Handb. Game Birds, 1897, ii, 114, part.— Salvin 

 and GoDMAN, Biol. Centr.-Amer., Aves, iii, 1903, 289 part (Coban, Dueiias). 



D[endrortyx\ leucophrys Reichenow, Die Vogel, i, 1913, 315. 



[Dendrortyx] leucophrys Gray, Hand-list, ii, 1870, 272, No. 9772.— Sclater and 

 Salvin, Nom. Av. Neotr., 1873, 138.— Sharpe, Hand-list, i, 1899, 44, part. 



Dendrortyx leucophrys leucophrys Geiscom, Bull. Amer. Mus. Nat. Hist., Ixiv, 1932, 

 IDS (Sepacuite, Guatemala; habits; distr.). — PSters, Check-list Birds of World, 

 ii, 1934, 43. — Hellmayr and Conover, Cat. Birds Amer., i. No. 1, 1942, 227, 

 part (syn. ; distr.; Guatemala). 



Dendrortyx lleucophrys] leucophrys Miller and Griscom, Amer. Mus. Nov. No. 

 183, 1925, 2 (Guatemala). 



D[endrortyx] l[eticophrys] leucophrys Dickey and van Rossem, Birds El Salvador, 

 1938, 156, in text (El Salvador; possibly Volcan de Santa Ana; Guatemala). 



[Dendrortyx leucophrys] leucophrys Wetmore, Proc. U. S. Nat. Mus., Ixxxix, 1941, 

 535, in text (crit). 



DENDRORTYX LEUCOPHRYS NICARAGUAE Miller and Griscom 



Nicaraguan Long-tailed Partridge 



Adult. — Similar to that of the nominate race but with the abdomen, 

 sides, and flanks less huffy brown, more grayish ; the gray of the margins 

 of the feathers of the breast somewhat darker pale gray to dark gull 

 gray ; the russet to bay centers of the feathers of the lower throat, breast, 

 and the paler ochraceous-tawny ones of the abdomen, sides, and flanks, 

 reduced in size and duller in color, those of the lower throat and breast 

 occasionally tinged and edged with blackish; ground color of the back, 

 rump, and upper tail coverts darker, less greenish olive, more brownish; 

 and auriculars dark sooty gray, occasionally tinged with brownish ; "iris, 

 grayish olive or yellowish hazel; bill, black; bare skin of ocular area, 

 bright red, lower eyelid, flesh color; tarsi and feet, dull, brownish red 

 or dark orange-red ; feet slightly darker. These slight differences do not 

 seem to be correlated with sex or season."*^ 



First "winter" plumage. — ^Very similar to that of the adult but with 

 the upper throat streaked with sooty and the dark dull sepia of the crown 

 extending forward over the eyes and to the base of the culmen leaving 

 only a large loreal and supraloreal buffy whitish area on each side; the 



'Ex Dickey and van Rossem, Birds of El Salvador, 1938, 158. 



