DUTCH BORNEO-EXPEDITION. 209 



Dicaeldae. 



126. Prionochilus xanthopygius. 



Prionochilus xanthopygius Salvad. Atti R. Acad. Torino, III, p. 416 

 (1868); id. ÜCC. Born. p. 162; Everett, L. B. Born. p. 140; 

 Sharpe, Ibis 1889, p. 430; Büttik. in Weber, Zool. Ergebn. Ill, 

 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. PI. Col. III. pi. 600, figs. 1 et 2 (1836). 



Prionochilus thoracicus Strickl. P. Z. S. 1841, p. 29; Salvad. Ucc. 

 Born. p. 163; Everett, L. B. Born. p. 140; Sharpe, Ibis 1889, 

 p. 430; Büttik. in Weber, Zool. Ergebn. Ill, p. 302 (1894). 



Eight 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. 



I>iotes from the Leyden ]>Xuseun3, "Vol. XXI- 



14 



