DUTCH BORNEO-EXPEDITION, 209 
Dicaeidae, 
126. Prionochilus santhopygius. 
Prionochilus santhopygius Salvad. Atti R. Acad. Torino, III, p. 416 
(1868); id. Uce. Born. p. i162; Everett, L. B. Born. p. 140; 
Sharpe, Ibis 1889, p. 430; Biittik. in Weber, Zool. Ergebn. III, 
p- 302 (1894). 
A great number of specimens from Roema Manoeal, 
Mount Kenepai, the valley of the Siniai, the Liang Koe- 
boeng range and Nanga Raoen; also from the Upper Ma- 
hakkam. — Iris brown, bill black, lower mandible horny 
gray, feet gray. 
Hab. Borneo. 
127. Prionochilus thoracicus. 
Pardalotus thoracicus Temm. Pl. Col. III. pl. 600, figs. 1 et 2 (1836), 
Prionochilus thoracicus Strick]. P. Z. S. 1841, p. 29; Salvad. Ucc. 
Born. p. 163; Everett, L. B. Born. p. 140; Sharpe, Ibis 1889, 
p. 480; Biittik. in Weber, Zool. Ergebn. III, p. 802 (1894). 
Hight specimens from Smitau and Roema Manoeal. — Iris, 
bill and feet black. — Two probably young, though full- 
grown specimens, which have been preserved in spirits, 
differ very much from both adult male and female, having 
the upper surface dark grayish olive-green, with hardly 
any indication of yellow on the centre of the crown, and 
the lower surface dark ashy gray, with yellowish white 
centre of breast and abdomen. Rump, upper- and under 
tail-coverts pale yellow, quills and tail-feathers black, the 
secondaries edged with green, under wing-coverts silky 
white, bill brown, angle of mouth and basal three thirds 
of lower mandible yellow. Having an adult male and 
female, also preserved in spirits, which are not altered at 
all in color, I may presume the same with regard to the 
two specimens which I have mentioned above as imma- 
ture birds. 
Hab. Malay Peninsula and Borneo. 
Notes from the Leyden Museum, Vol. X XI. 
14 
