Phabotreron brevirostris Salvadori, Cat. Birds Brit. Mus. (1893),
21, 69 (part).
Phapitreron albifrons McGregor, Phil. Jour. Sci. (1907), 2,
sec. A, 317.
Li-mú-con, Bohol.
Bohol (Steere Exp., McGregor); Siquijor (Bourns & Worcester,
Celestino).
Adult male (type).--General color brown, much darker above, with
iridescent reflections most pronounced on nape, mantle, and breast;
merging rather abruptly into dark gray of crown; occiput, nape, and
sides of head ruddy brown; from gape a narrow brown line passing
below eye with a wider white line underneath, both lines reaching
beyond ear-coverts; chin white, gradually changing to gray on throat
and ochraceous on breast and abdomen; under tail-coverts and a wide
band at end of tail pale french-gray; wings uniform with the back;
primaries with a narrow light brown edge on outer webs; with the bird
held toward the light the occiput and nape are glossed with green,
followed by a patch of metallic blue, this followed on interscapulars
by a wide band of metallic green extending to sides of neck and
narrowly bordered behind by blue; the wings and remaining upper parts
have a dull green gloss; with the bird held away from the light the
green changes to purple and this metallic color shows also on throat,
breast, and sides of neck. Length, 234; wing, 122; tail, 81; culmen
from base, 16; tarsus, 17.
Female.--Similar to the male. In this species the terminal half of
bill is black; basal half of bill, skin around eyes, and feet dull
crimson; iris brown; nails gray.
Egg.--A hard-shelled egg was taken from a female killed on June 7,
1906; another egg, obtained in the same manner four days later,
measures 27 by 21 and is pure white in color.
This species is most closely related to P. brevirostris but it differs
in having a white forehead and brown subocular line.
Subfamily PTILOPODINÆ.
Forest inhabiting pigeons of medium size; upper surface rich green;
no band across lower back.
Genera.
a1. First primary abruptly attenuated.
b1. Tail rather long; pectoral feathers not
bifurcated. ... Leucotreron (p. 37)
b2. Tail moderate; pectoral feathers bifurcated. ... Lamprotreron
(p. 40)
a2. First primary not so abruptly attenuated; slightly narrowed at
tip. ... Spilotreron (p. 41)
Genus LEUCOTRERON Bonaparte, 1854.
First primary with both webs greatly reduced in width near the tip;
tail square; tarsus feathered for more than half its length. Forest
inhabiting pigeons of medium size.
Species.
a1. Larger, length, 330 mm. or more; under tail-coverts green or gray,
broadly edged with buff.
b1. Secondaries uniform green. ... occipitalis (p. 37)
b2. Secondaries with a conspicuous red patch. ... marchei (p. 38)
a2. Smaller, length, 300 mm. or less; under tail-coverts uniform,
dark cinnamon. ... leclancheri (p. 39)