770 



U. S. p. R. R. EXP. AND ^SURVEYS — ZOOLOGY — GENERAL REPORT. 



DENDEOCYGNA AUTUMNALIS, E y t o n . 



Long-legged Duck. 



Anm aulumnalis, Linn. Sjst. Nat. 1, 1766,205. 



DendroneKsa miliinmalis, Wacler, Isis, 1832, 282. 



Dtmlrocygna aulumnalis, Evxox.Mcn Anat 1838 — Lawrence, Ann. N. Y. Lye. V, May, 1851, 117. 



Sp Ch. — Head grayish. Top of bead, lower part of neck, jugulum, interscapulars, and scapulars, reddish chocolate. A 

 narrow fine down the nape, and the body generally, with wings and tail, black. Crisaum and tibia white spotted with black. 

 A large white patch on the wings, composed of the greater wing coTerts and the basal half of nearly all the primaries and 

 secondaries. Bill and feet red. 



Length, about 24 inches; wing, 10; tarsus, 2.26; commissure, 2.20. 



Ilah. — Valley of Rio Grande, Texas. Also in South America and West Indies? 



Sides of head and neck gray, passing on the lower surface into whitish. Forehead grayish, 

 passing on the crown into reddish hrown, and on the nape and haclc of the neck into dark 

 brown and black. Lower half of neck and anterior portion of body all round, including jugu- 

 lum and fore back, dull chocolate red, lighter on the breast ; the scapulars, interscapulars, and 

 tertials, with the tips somewhat similar, but the body of the feather more olive brown. Lower 

 jjart of back, rump, tail, the belly and sides, the entire inner surface of wing and axillars, 

 with the quills, sooty brown, almost black, dullest on the belly ; the crissum and tibia white, 

 spotted with sooty. Lesser coverts yellowish olive, the greater with the outer webs of 

 secondaries and primaries and spurious feathers, white, showing as a conspicuous patch. 

 The first and second primaries, and outer spurious quills without, white. Bill yellowish or 

 red, the nail black. Feet like the bill. 



In a specimen apparently of the same species, but more mature, the top of the head from the 

 bill is dull brownish red, and tlie back and scapulars are of the same color, the narrow black 

 line down the nape very distinct. The jugulum and lower part of neck all round is, however, 

 more yellowish, separating broadly the chestnut or chocolate red of the throat from that of the 

 back. The belly is pure black ; the tibia black, with only a few whitish specks. 



List of specimens. 



DENDEOCYGNA FULVA, B u r m . 



Anas fulva, Gmelin, Syst. Nat. 1, 1788, 530.— Lath. Ind. Orn. II, 1790, 863.— Steph. in Shaw's Gen. Zool. XII. 



1819,204.— BuRM. Thiere Brasiliens, II, 1856,435. 

 "Afuu virga/a, Max. Reiee nach. Bras. 1,322." 

 "Anaa simtata, Lioht." Bon. 

 "Anas bicolor, Vieillot," Bon. 

 "Anaa collaris, Merrem," Boq. 

 Pendope maicana, Br. Orn. VI, 1760, 300. 



