THE LONG-TAILED AMERICAN PARTRIDGES. 1B es 
Letrao marmorata, La Llave, Reg. Trim. i. p. 144 (saa) id. 
La Nat. Mex. vil. App. p. 65 (1884). 
Dendrortyx macrourus, Gould, Monogr. Odontoph. pt. i. pl. 2¢ 
(1844); Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 392 
(1893). 
Adult Male—Chin and throat Jack (feathers of the chin 
sometimes with whitish centres) ; short eyebrow-stripes and 
band bordering sides of throat zeA7e ; neck, mantle, chest, and 
sides chestnut broadly edged with grey ; lower back and rump 
dull olive-brown finely mottled with black ; wing-coverts and 
shoulder-feathers mostly olive-grey, with irregular black and 
white spots and markings ; breast and middle of belly dirty- 
white or brownish-olive ; naked space round the eye coral-red. 
Total length, 15 inches; wing, 6°3; tail, 6°5 ; tarsus, 2; middle 
toe and claw, 2°1. 
Adult Female.—Smaller. Total length, 13°3 inches; wing, 
Feo, tall, 5:3 starsus, 2°75 > middie toe and claw, 1-8: 
Range.—Southern Mexico; the highlands of Colima, Guer- 
rero, and Oaxaca. 
WI, THE BEARDED LONG-TAILED PARTRIDGE. DENDRORTYX 
BARBATUS. 
Dendrortyx barbatus, Licht.; Gould, Monogr. Odontoph. pt. ii. 
pl. 22 (1346) ; Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p: 
393 (1893). 
Adult.-—-Easily distinguished from D. macrourus by having 
the chin and throat gvey ; eyebrow-stripes and cheeks dark 
grey ; chest, breast, and sides of belly light chestnut. Naked 
skin round the eye red. ‘Total length, 13°5 inches ; wing, 6°2; 
fail, 4°S.; tarsus, 1°95 ; middle toe and claw, 2°r1. 
Range.—South-east Mexico; the vicinity of Jalapa, Vera 
Cruz, 
2 I 
