Basilan (McGregor); Mindanao (Platen). Celebes, Moluccas, New Guinea, Tenimber Islands.

“Adult male and female.—Upper part of head dark brown; a black line along hind neck; back and wings dusky brown; feathers of back, scapulars, and wing-coverts edged with pale brown; lores brown; superciliary stripe, sides of head, and upper part of neck grayish, with dusky cross-lines, giving a mottled appearance; chin and throat uniform whitish; lower part of neck dusky with white spots; rump brown; upper tail-coverts black, basal ones broadly barred with white; upper breast rufous-brown, each feather with a white spot at the tip; lower breast and abdomen whitish, with faint dusky lines across; feathers of flanks with large, white, round spots, the longer feathers are almost barred with black; under tail-coverts whitish, with black bars; quills brown; tail almost black. ‘Bill black; tarsi and feet ashy, more or less tinged with reddish; iris brown or chestnut.’ (D’Albertis.) Length, about 432; wing, 215; tail, 74; culmen, 41; tarsus, 41.

“‘Young.—Feathers of the flanks paler and with the white spots elongated and lanceolated.’ (Schlegel.)” (Salvadori.)

A male from Basilan, December 26, 1906, measures: Length, 444; wing, 216; tail, 67; exposed culmen, 45; tarsus, 45; middle toe with claw, 71.

Of the earlier collectors Platen was the only one to secure this tree duck in the Philippines; more recently it has been taken in Basilan but it appears to be a rare species.

Genus ANAS Linnæus, 1758.

Bill of moderate length, the sides nearly parallel; wings long and pointed; a wide band of metallic color across the secondaries forming the speculum; tail pointed but not of great length.

157. ANAS LUZONICA Fraser.
PHILIPPINE MALLARD.