Adult male.--Crown ashy, forehead lighter; face and neck dark gray, the latter followed by a narrow line of ashy gray; mantle, including lesser wing-coverts, dark chestnut; lower back, rump, and tail-coverts dark green; under parts yellowish green, breast more yellowish; thighs and flanks darker and greener, mixed with white; under tail-coverts cinnamon; wings black; median and greater wing-coverts and secondaries edged with yellow; some of the inner secondaries tipped with green; tail above, ashy gray with a black band some distance from the tip, but the median rectrices green and the next two partly green. "Legs and feet vary from lake-pink to coral-red; orbital skin pea-green; the irides vary from bright orange to yellowish red, with an inner, deep-blue ring more or less apparent; gape and base of upper mandible to nostril bright red; rest of bill pale yellowish, or greenish white, tipped with greenish." (Hume.) Two males from Palawan measure: Length, 250, 260; wing, 132, 136; tail, 89, 87; culmen from base, 20, 21; tarsus, 19.8, 20. Adult female.--Differs from the male in having the mantle dark green like lower back; under tail-coverts buffy white with large pointed shaft-marks of dark green. A female from Palawan measures: Length, 250; wing, 130; tail, 84; culmen from base, 20; tarsus, 20. "Two females measure: Length, 210; culmen, 20; wing, 130; tail, 74; tarsus, 20; middle toe with claw, 29. Iris with outer orange and inner brown ring; bill yellow, red at base of lower mandible." (Bourns and Worcester MS.) Genus SPHENOCERCUS Gray, 1840. This genus resembles Osmotreron, but it has a longer and more strongly graduated tail and the hard portion of the upper mandible is shorter. 12. SPHENOCERCUS AUSTRALIS McGregor. SOUTHERN WEDGE-TAILED PIGEON. Sphenocercus formosæ McGregor, Bull. Philippine Mus. (1904), 4, 9; McGregor and Worcester, Hand-List (1906), 9. Sphenocercus australis McGregor, Phil. Jour. Sci. (1907), 2, sec. A, 344. Pú-nay, Calayan; a-ri-da-uang', Batan. Batan (McGregor); Calayan (McGregor); Camiguin N. (McGregor).