770 
U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
DENDROCYGNA AUTUMNALIS, Eyton. 
Long-legged Duck. 
Anas aulumnalis, Linn. Syst. Nat. 1,1766,205. 
Dendronessa aulumnalis, Wagi.er, Isis. 1832,282. 
Dendrocygna autumnalis, Eyton, Mon Anat 1838 — Lawrence, Ann N. Y. Lyc. V, May, 1851,117. 
Sp Ch. —Head grayish. Top of head, lower part of neck, jugulum, interscapulars, and scapulars, reddish chocolate. A 
narrow line down the nape, and the body generally, with wings and tail, black. Crissum and tibia white spotted with black. 
A large white patch on the wings, composed of the greater wing coverts 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. 
Ilab .—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 brown, and on the nape and hack of the neck into dark 
brown and black. Lower half of neck and anterior portion of body all round, including jugu¬ 
lum and fore hack, 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 
part of hack, 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, hut more mature, the top of the head from the 
bill is dull brownish red, and the hack 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 
hack. The belly is pure black ; the tibia black, with only a few whitish specks. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality, 
When collected. 
When obtained. 
Collected by— 
9871 
9872 
2682 
8 
Isla los'Ajuntas, (Rio Grande) Texas. 
Sept 8, 1853 
Major Emory_ 
do . 
A. Schott_ 
S F. Baird. 
DENDROCYGNA FULYA, Burm. 
Alias fvlva, 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. 
“Anas virgata, Max. Reise naeli. Bi as. I, 322.” 
“Anas sinuala, Licht.” Bon. 
“Anas bicolor, Vieillot,” Bon. 
“Anas collaris, Merrem,” Bon. 
renelope mexicana, Br. Orn. VI, 1760, 390. 
