198 Journal of the F.M.S. Museums. [Vovr. VIII, 
We found it very much rarer.than Avrenga melanura, by 
which it was probably masked, though the latter appears to 
range higher than A. castaneus, which does not occur above 
about 7,000 feet. At Barong Bharu on the Barisan Range it 
was evidently fairly common. The habits and cry are exactly 
the same as the other two species A. melanura and M. dt- 
crovhynchus, though it is.a much shyer bird than the latter 
species, which we have noted hopping about on boulders in 
streams, near houses and on the edge of cultivation in the 
Korinchi Valley. 
The specimen noted by van Oort as having the blue of 
the breast continued further down the belly than in the figure 
of the type is evidently only a fully adult male as surmised by 
the author. Three specimens from Barong Bharu agree 
perfectly with his description. 
Adult females are almost uniform chestnut above and 
below, darker below, with the bases of the feathers white. 
Shoulder patch bright purplish blue, top of the head strongly 
washed with purplish blue, except the extreme frontal region 
and lores, which are brownish. Immature males at first 
resemble the female but are much darker below with the head 
and neck all round bluish, including the forehead and lores. 
In the fully adult male the chest and belly becomes deep blue 
and the belly, flanks and under tail coverts rich chestnut, 
lighter than in the immature birds. 
Comparison of this series with a large number of Arrenga 
cyanea (Horsf.) from Java, the type of the genus Arrenga 
Less., shows that the shape of the bill is identical in both 
species and different from Myzophoneus of which the type is 
M. flavivostris from Java. 
126. Arrenga melanura, Salvad. 
Arrenga melanura, Salvad. Ann. Mus. Civ. Gen. xiv, 
p. 227 (1879) ; Ramsay, P.Z.S. 1880, p. 16; Nicholson, Ibis, 
1882, p. 60; id. op. cit. 1883, p. 247; Vorderman Nat. Tijd. 
Neder]. Ind. xlix, p. 409, no. 367 (1889.) 
Myiophoneus melanurus, Sharpe, Cat. Birds Brit. Mus. vu, 
p. 12 (1883); Buttikofer, Notes Leyden Mus. ix, p. 66 (1887). 
a-c. 26 imm.,1 ?imm. Siolak Daras, Korinchi 
Valley, Sumatra, 3,000 feet. 23rd-27th 
March, 1914. [Nos. 330, 406, 461.] 
d-s’. 20 46,1 ¢imm.,18 $,3 ?imm. Sungei Kum- 
bang, Korinchi, Sumatra, 4,700 feet. 30th 
March-13th May, 1914. | Nos. 504-6, 510-11, 
532, 539, 575, 590-91, 611, 622, 661-62, 676, 
681-2, 711, 717-8, 739, 758, 775, 795, 842, 
846-7, 891-2, 933-5, 956, 990, 993-4, 1017, 
1050, 1077, 1530, 1559, 1569. 
E xpedition to Korinchi: 
