Rosinson & Kioss: Birds of West Sumatra. 269 
@ imm. Muara Sako, Indrapura, 300 M. 
Iris dark, bill horny black, feet plumbeous. 
Immature birds have the tip of the bill yellowish brown 
and the feet pinkish slate. 
Wings, ¢ 89,90; 2 87, 87 mm. 
The young male has the blue duller, head and nape 
interspersed with brownish feathers with pale shaft stripes, 
wing coverts tipped with yellowish buff. The young female 
is like the adult except that the head, mantle and wing 
coverts have large fulvous centres. 
Sumatran and Malayan birds are alike; but the Bornean 
bird is smaller and has no white on the tail: it is C. c. 
everetti Sharpe. 
170. Cyornis elegans elegans Temm. 
Cyornis cantatrix R. & K., I, p. 154; R. & K., II, p. 104. 
@. Muara Kiawai, Ophir Districts, 40 M. 
Iris dark, bill black, feet brown. 
Wing 72 mm. 
171. Cyornis sp. incert. 
$. Muara Kiawai, Ophir Districts, 40 M. (No. ° 
4731). 
Iris dark brown, bill black, feet purplish fleshy. 
Wing 73 mm. 
This bird agrees with the male from Batang Kwis, 
near Medan, N. E. Sumatra (which we have examined) 
recorded as Cyornis nigrigularis by de Beaufort and de 
Bussy (Bijdr. t. d. Dierk. Afl. XXI, p. 259). It differs, 
however, from ten Sarawak birds which we regard as 
Everett’s form in lacking the blue-black areas on the sides 
of the breast and in having the abdomen and under-tail 
coverts white, the flanks alone being of the colour of the 
foreneck. The disposition of colours is as in the female 
of Cyornis elegans (a specimen of which was taken at the 
same place and time by Mr. Jacobson) but the tints are 
darker while the throat and sides of the neck are black. 
Cyornis nigrigularis Everett, is probably synonymous 
with Schwaneria caerulata Bp., also from Borneo ; as is 
also Cyornis rufifrons Wallace, from the same island. 
Cyornis vanheysti, Robinson and Kloss (Piate IX). 
R. & K., II, p. 104. 
g ad. (type). Toentoengan, Deli, N. E. Sumatra, 
10th February, 1918. 
é imm. Deli Toewa, Deli, N. E. Sumatra, 4th 
April, 1917. 
Though these birds were not collected by Mr. Jacobson 
we take the opportunity of figuring the only specimens at 
