18 ON A COLLECTION OF BiRDS 



Sumatraa specimens from those from Borneo can hardly 

 be maintained , as Mr. Sclater 1. c. and Count Salvadori 

 propose in their respective papers on this subject. I should 

 rather believe that we have to do with different stages of 

 plumage according to the age, instead of with different 

 species , that the pale green throat , slightly undulated with 

 brown , is the plumage of the young bird , that the brown 

 undulations increase with the age and that the stone-red 

 throat is the stage assumed by the adult bird. 



27. lyngipicus auritus. 



Picus moluccensis , Gm. S. N. I. p. 439 (1788). 



Picus minor, Raffl. t. c. p. 290 (nee Linn.). 



lyngipicus fusco-albtdus , Salvad. Ucc. di Borneo, p. 42(1874); — id. 



Ucc. di Sumatra, p. 180 (1879); — Tweedd, Ibis 1877, p. 



290; — Nicholson, Ibis 1882, p. 55. 

 lyngipicus auritus (Eyton), Hargitt, Ibis 1882, p. 42; — Nicholson, 



Ibis 1883, p. 242. 



4 specimens (1 cT, 3 Q). 

 »Iris brown, bill and feet gray. Native name : «S^' ow^on^." 



28. Xylolepes valid us. 



Picus validus (Reinwardt i. 1.), Temm. P. C. IV. 378 (<f ), 402 (2) (1825). 



Xylolepes validus, Cab. & Heine, Mus. Hein. IV, 2, Picidae, p. 108 

 (1863); - Salvad. Ucc. di Borneo, p. 43 (1874); id. Ucc. 

 di Sumatra, p. 181 (1879); — Tweedd. Ibis 1877,p. 240; — 

 Nicholson, Ibis 1882, p. 54; id. Ibis 1883, p. 242. 



2 specimens (ad. (ƒ, jun. cf). 



» Adult male: Iris orange-yellow, upper mandible brown, 

 lower black, feet dirty flesh-color." 



» Young male: Iris brown, upper mandible pale brown, 

 lower pale ochre, feet dark brown." 



» Native name: Si ontong vimba." 



29. Hemic ere lis sordidus. 



Picus concretus, Temm. (part.) P. C. IV. 90 (descr. mari jun. sed non 

 fig.) ex Banka et Sumatra; — Snelleman, Sum. Exp. Vogels, 

 p. 38 (1884). 



Notes irom the Leyden ]Miiseum, Vol. IX. 



