FROM WESTERN SUMATRA. 17 



Megalorhynchus sanguinolentus (Less.), Sclater, P. Z. S. 1863, p. 210. 

 Calorhamphus fuliginosus, Goffin, Mus. P.-B., Buecones, p. 73(1863); 



— Salvad. Ucc. di Borneo, p. 39 (1874); — Snelleman, 



Sum. Exp. Vogels, p. 35 (1884). 

 Caloramphus Hayi, Ramsay, P. Z. S. 1880, p. 14. 



4 specimens. 



»Iris brown, bill black or brownish yellow, feet minium- 

 red. Native name:?" 



All four specimens , together with a fifth one (a pale- 

 billed female which is retained by Dr. Klaesi) have been 

 shot on the same day and in the same locality and most 

 probably belong to one and the same flock. Unfortunately 

 these specimens leave the question about the sexual diffe- 

 rences in the color of the bill still unexplained, as 

 there are two dark-billed specimens , one of which is la- 

 belled as a male , the other as a female , and the same 

 is the case with the two pale- billed ones. As the specimens 

 do not differ in the color of the plumage from each other, 

 the difference in the color of the bill can only be due to 

 the difference in sex, and the black-billed female as well 

 as the pale-billed male might have been obtained by con- 

 founding their labels when fixing them to the birds. 



All four specimens have chin and throat reddish brown 

 and each feather tipped with yellow, and also is the spe- 

 cimen (dark billed male), collected by the Dutch Sumatra 

 Expedition in 1877, as well as one of both specimens 

 collected by S. Muller in that Island. The other of these 

 two specimens however has chin and throat stone-red and 

 cannot be distinguished from the red-throated Bornean 

 specimens. One of the latter, collected by Schwaner, has 

 chin and throat but slightly tinged with reddish brown 

 instead of red , even much less than in Dr. Klaesi's specimens , 

 and agrees perfectly well with the Malacca specimens , of 

 which at this moment two are in our Museum. 



Without supposing a change of labels in the mentioned 

 red-throated Sumatran specimen and the pale brown-throated 

 from Borneo, the specifical distinctness of Malaecan and 



Notes from the Leyden IMuseutu, "Vol. IX. 



2 



