440 MANUAL OF PHILIPPINE BIRDS. 
center of breast and abdomen white, as also the under tail-coverts, with 
a slight tinge of buff; lateral breast-feathers tipped with blue, like the 
back; thighs white, with blackisM™®ases ; axillars and under wing-coverts 
white, slightly tinged with buff; edge of wing blue. Length, 150; 
culmen, 18; wing, 74; tail, 63; tarsus, 18. 
“This species is closely allied to Siphia philippinensis, but is much 
larger, of a more greenish blue, and is especially distinguished by the 
white moustache, forming a narrow line down each side of the throat.” 
(Sharpe.) - 
“Female.—Forehead, crown, and occiput dark plumbeous-gray, washed 
with olive, each feather with narrow obsolete transverse bars, which are 
most pronounced on the forehead; sides of neck, mantle, scapulars, and 
back warm olivaceous-brown, deepening posteriorly into bright ferrugi- 
nous-brown on the upper tail-coverts; rectrices dark sepia-brown, the 
exterior webs ferruginous-brown, except on the two central quills, which 
are wholly ferruginous-brown, and all showing in certain lights close 
obsolete transverse bars ; under surface of the quills hair-brown ; primaries 
dark brown, and all except the first and second margined basally on the 
outer webs by a thin hne of ferruginous-brown; the secondaries and 
tertials also dark brown, but increasingly margined [with] bright ferrugi- 
nous-brown until the entire outer webs are of the latter color; under 
wing-coverts, axillars, and edges of wing white, tinged with buff; major 
wing-coverts dark brown, with bright ferruginous-brown outer webs; the 
others coverts broadly tipped with bright ferruginous-brown; a conspic- 
uous line from the nares over the eye and reaching nearly to the posterior 
angle of the orbit, and a line fringing the lower margin of the orbit, 
pure white (tinged with buff.in some examples); lores black; ear- 
coverts dark gray, washed with olive; cheeks the same, but rather darker 
gray; sides and flanks olive-gray, washed with buff; chin white; throat 
pale buff, passing into deep orange-buff on the breast, on the sides of 
which some of the plumes show obsolete dusky margins; abdomen and 
lower tail-coverts white; thigh-plumes dark gray, edged with white. 
Length, 147; culmen, 17; wing, 73; tail, 60; tarsus, 17. 
“In another female from Balabac the dimensions are rather less, but 
in my original Puerto Princesa specimen they agree very closely. This 
species is marked by its large bill. The culmen in the type-skin of the 
male, measured from its insertion in the skull, is 17 mm., and it is the 
same in a female collected by Mr. Whitehead at Taguso in Palawan.” 
(Everett. ) 
“Abundant in Palawan and the Calamianes islands. Habits like 
those of 8. philippinensis. Five males average: Length, 149; wing, 75; 
tail, 64; culmen, 18; tarsus, 17; middle toe with claw, 18. Three 
females, length, 149; wing, 70; tail, 58; culmen, 17; tarsus, 16; middle 
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