872 
Birds of Celebes: Anatidae. 
From its quieter coloration, D. guttata might be taken for a simpler type 
of Tree Duck than its fellow-species, D. arcuata\ yet, from the circumstance 
that the flank-feathers of the young of B. guttata present the longitudinally 
striped appearance seen in the other bird as an adult, it is probable that the 
round white spots of D. guttata are a peculiarity of recent origin. 
GENUS ANAS L. 
In the typical Wild Ducks the culmen is longer than the tarsus and about 
equal in length to the head, much broader than deep as measured across the 
nostrils ; the tarsus transversely scutellated on its lower part in front, the hallux 
less than half its length; a broad metallic speculum on the secondaries, the 
shortest of which are about half the length of the wing, or a little more. Its 
larger size and relatively larger bill afford the best means of distinction from 
Nettion. The males of some species very different in coloration from the females. 
Cosmopolitan. 
371. ANAS SUPERCILIOSA Gm. 
Australasian Wild Duck. 
Anas superciliosa (1) Gm., S. K 1788, I, 537 (ex Latham); (II) Gould, B. Austr. 1848, 
vn, pi. 9; (III) Rchb., S. A., Natatores (t. 85) figs. 913—14 (1845), (t. 94) f. 2347 
(1850); (4) Schl., Mus. P.-B., Anseres, 1866, 42; (5) Finsch & Hartl., Om. Central- 
polyn. 1867, 213; (6) Salvad., Orn. Pap. 1882, DI, 394; (7) Meyer, Isis, Dresden 
1884, 57; ("7”*; W. Bias., Z. ges. Om. 1884, 327; (8) Ramsay, Tab. List 1888, 
22, 38; (9) Buller, B. N. Zeal. ed. 1888, 11, 251; (10) North, Nests and 
Eggs Austr. B. 1889, 341; (11) Yorderm., N. T. Ned. Ind. 1890, XLLK, 419; 
(12) Salvad., Agg. Om. Pap. 1891, 210; (13) Meyer, Ahh. Mus. Dresden 1891, 
Nr. 4, p. 17; (14) Wiglesw., Aves Polyn. 1892, 70; (15) Buttik., Zool. Ergeb. 
Weber’s Reise 1893, HI, 306; (16) Salvad., Cat. B. 1895, XXYII, 206; 
(17) P.&F. Sarasin, Z. Ges. Erdk. Berlin 1895, XXX, 333; (18) M. & Wg., Abb. 
Mus. Dresden 1896, Nr. 1, p. 15; (19) Hart., Nov. Zool. 1896, 598. 
“Kiti balang", South Celebes, Platen 7. 
For further synonymy and references cf. Salvador! 6, 12, 16. 
Figures and descriptions. Gould 17; Reichenbacb 777; Schlegel 4; Finsch & Hartl. 5; 
Salvadori 6, 16', Buller 5; etc. 
Adult. General colour above and below brown, above darker, more sepia brown, below grey- 
brown, — all the feathers edged with whitish brown or buff, on the secondaries a 
speculum of metallic green, changing to blue in certain lights, framed on three sides 
with black, formed by the tips of the greater wing-coverts, the adjacent tertiaries and 
the tips of the secondaries; bead above, loral stripe passing through the eye 
to the occiput, and a short rictal stripe brown-black, the last stripe breaking 
up into little brown streaks on the middle of the cheeks and ear-coverts, and pass- 
ing into the brown-streaked neck; remainder of face, superciliary stripe from 
forehead to occiput, chin and upper throat clear bufi; under wing-coverts 
and axilla ries white. 
