Adult.--A black line below eye from gape to neck; below this a line of white mixed with reddish brown; general color above dark brown, lighter on forehead and fore crown; bird held toward the light, neck and its sides, beautiful, iridescent purple and violet-blue; wing-coverts, back, rump, and tail-coverts, dark glossy green; bird held away from the light, neck and sides of neck blue or deep violet; wings, back, tail, and its coverts washed with purple; below uniform light brown except middle of abdomen and tail-coverts which are dark buff; tail dark brown with a broad, apical, gray band, the middle pair of rectrices do not show this band from above. Iris light brown; bare skin about eyes dark, dirty red; bill black; legs and feet bright carmine; nails horn-colored. Length, about 255. In a male from Bataan Province, Luzon, the wing is 140; tail, 99; culmen, 23; tarsus, 20.5. Salvadori gives the following measurements: Wing, 146; tail, 78; bill, 22; tarsus, 22. "A rare bird in the few islands where it is found. Legs dull pink; iris dark brown; feet dark pink; nails brown; bill black. Length, 292; wing, 145; tail, 97; culmen, 25; tarsus, 21; middle toe with claw, 30." (Bourns and Worcester MS.) 17. PHAPITRERON CINEREICEPS Bourns and Worcester. GRAY-HEADED PIGEON. Phabotreron cinereiceps Bourns and Worcester, Minnesota Acad. Nat. Sci. Occ. Papers (1894), 1, 8; Sharpe, Hand-List (1899), 1, 55. Phapitreron cinereiceps McGregor and Worcester, Hand-List (1906), 10. Tawi Tawi (Bourns & Worcester). "Adult.--Top of head, nape, and sides of neck clear ashy gray, slightly washed with rufous on forehead; hind neck amethystine as in P. amethystina; back, rump, and upper tail-coverts brown with bronze reflections, the tail-coverts slightly more ruddy than back; four outer pairs of tail-feathers dark brown, lighter at base; two central pairs ruddy brown with bronze reflections; all the tail-feathers with ashy tips which form a distinct terminal band 6 mm. in width; shafts of tail-feathers black; wing-coverts and secondaries uniform with back; primaries dark brown, the first five sharply edged with rusty brown on outer web; a narrow black stripe under eye; sides of face, ear-coverts, fore neck, and breast rich ruddy brown, the breast with a slight metallic gloss; chin and throat lighter; abdomen and thighs fulvous brown; flanks darker with slight metallic wash; under tail-coverts clear ashy gray; shafts of tail-feathers with basal half black, apical half white; under surface of tail nearly black, the terminal gray band distinct and wider than on upper surface, measuring 15 mm. on outer pair of feathers; under wing-coverts and axillars like the flanks; under surface of quills uniform dark brown. Bill black; legs and feet dirty purplish; nails black; iris in one specimen bright yellow, in another orange-red. Length, 260; wing, 134; tail, 99; culmen, 20; tarsus, 18. Sexes alike." (Bourns and Worcester.)