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 ÜMuseum, "Vol. XXI. 



13 



