DUTCH BORNEO-EXPEDITION, 193 
the outer web; sides of head and neck, chin, throat, chest 
and sides of breast blue like the upper surface, centre of 
breast and flanks more purplish gray, intermixed with 
white ; abdomen, vent and under tail-coverts pure white, 
as well as a long tuft of fluffy feathers on the sides of 
the rump; tail and wing unterneath black, the quills 
faintly edged on their inner webs with smoky brown, 
under wing-coverts dark gray, the outer parts slightly 
tinged with blue, edge of wing entirely blue. Iris dark 
brown, bill black, feet bluish gray, soles orange-yellow. 
Wing 8—8,4 cm., tail 5,5, tarsus 2, culmen 1,8. 
Adult female. Upper surface and anterior part of 
lower surface russet brown, strongly tinged with ferru- 
ginous on forehead, superciliary region, lores, sides of head, 
chin and throat; wing-coverts like the back, quills dark 
brown, the inner primaries and still more so the second- 
aries broadly edged with chestnut-brown, upper tail- 
coverts likewise chestnut-brown, tail dark brown, the cen- 
tral pair above rufous brown, the lateral pairs edged with 
rufous brown on the outer web and with white on the 
inner, the white margin being very narrow if not entirely 
absent on the outermost pair and rather broad on the 
three following pairs, but not reaching entirely to the tip. 
Moreover the third, fourth and fifth pair are margined 
with leaden blue on the basal two thirds of the outer web, 
while on the fourth pair this blue color borders a white 
longitudinal spot. Centre of throat pure white, partly con- 
cealed by the tips of the posterior feathers being tipped 
with rufous brown; breast, flanks and thighs olive-brown; 
centre of breast, abdomen, vent and under tail-coverts 
white, more or less spotted and streaked with the color 
of breast and flanks; under wing-coverts white, varied 
with fulvous, inner web of the quills margined with ashy 
white. Color of iris, bill and feet as in the male. The 
female is very much like male and female of Rhinomyias 
gularis Sharpe in its general coloration and the white 
gular patch, but is easily distinguished from the latter by 
Notes from the Leyden Museum, Vol. XXI. 
13 
