DUTCH BORNEO-EXPEDITION. 203 
undergone by a complete moult, as amongst the wing- 
coverts and scapulary feathers there are numerous young 
feathers making their appearance which are entirely blue 
(see also Oates, Fauna Brit. Ind. Birds, II, p. 43). — Iris 
blood-red, in the young specimen dark brown, bill black, 
feet dark gray. The breeding season seems, according to 
the above mentioned young bird, to be in March and April. 
Hab. From Tenasserim through the Malay Peninsula to 
Sumatra and Borneo, on which latter island it is widely dis- 
tributed and an inhabitant of lower as well as mountainous 
countries. The Leyden Museum is in possession of speci- 
mens from Java and Timor. On the Natuna Islands this 
species seems to be represented by a somewhat different 
form, Philentoma dubium Hartert. 
Artamidae. 
114, Artamus leucorhynchus. 
Lanius leucorhynchus L. Mant. Plant. p. 524 (1771). 
Artamus leucorhynchus Salvad. Ucc. Born. p. 140; Everett, L. B. 
Born. p. 144; Sharpe, Ibis 1889, p. 433. 
Three adult birds from Pontianak, two nestlings from 
Poelau, and a specimen from the Upper Mahakkam. The 
latter have the quills and tail-feathers slightly tipped with 
white, otherwise they do not differ in color from the 
adult, — Iris dark brown, bill bluish gray, tip black, feet 
dark gray. 
Hab. From the Andamans through the Malaiasian re- 
gion, the Moluccas and New Guinea to Australia. 
Campephagidae. 
115. Pericrocotus xsanthogaster. 
Lanius xanthogaster Raff. Trans. Linn. Soc. XIII, p. 309 (1822). 
Pericrocotus ardens Salvad. Ucc. Born. p. 143, pl. IL. 
Pericrocotus xanthogaster Sharpe, Ibis 1889, p. 192; Everett, L. B. 
Born. p. 125. 
Notes from the Leyden Museum, Vol. XXI. 
