250 Journal of the F.M.S. Museums. [Vot. XI, 
é imm. Balun, Muara Labu, Padang Highlands, 
480 M 
?. Serapei, Korinchi, 800 M. 
All taken between January and July inclusive: a 
female had a developed ovary in the latter month. 
Iris brownish carmine, brown, or dark grey ; maxilla 
black or brownish black, mandible pale brown with dark 
tip ; mouth red ; feet yellow, claws black. The immature 
bird had the iris orange. 
Wings ¢ 97, 98, 100, 101, 102, 103, 103, 95 mm.; 2 98, 
101 ; sex inc. 97 mm. 
The series is rather variable ; one specimen in the rich 
colour of the abdomen, shows approach to C. m. querulus 
Heine, of India and Indo-China ; one, in its pale yellowish 
abdomen, closely resembles C. m. dysonomus ; but the bulk 
are typical threnodes and we have so listed all. 
The female from Fort de Kock (No. 1133) is a partial 
albino: the lower breast, abdomen and undertail coverts 
are rufous, elsewhere it is white except for dusky edges to 
the wing quills and dusky bars on the rectrices. The colour 
of the iris was not ascertained. 
The collector notes that of sixteen examples obtained 
in four years only two were females. 
Our own experience is very similar : of twenty-seven 
examples af C. merulinus from the Malay Peninsula only 
three are females and they are in the banded phase: two 
of C. m. dysonomus (Heine) from Borneo are both males; 
but of five examples of C. m. lanceolatus (S. Mull.) from 
Java, three are females and none of them banded. 
Of eighteen examples of the allied species C. sepul- 
chralis (S. Mull.) on the other hand, six are females and 
only two are banded and they are assuming rufous plumage 
below. 
118. Penthoceryx sonnerati fasciolata (S. Miull.). 
Penthoceryx sonnerati pravata R. & K., I, p. 135; R. & K., I, 
p. 92. 
6, 2. Aur, Kumanis, Padang Highlands, 200 M. 
Iris sepia, upper border of the iris whitish, upper 
mandible black, lower mandible blackish grey, feet greenish 
yellow, soles yellow, claws blackish. 
Wings, 6 112; ¢ 112 mm. 
According to the natives this species lays its eggs in the 
nest of the tailor-bird Orthotomus sepium cineraceus Blyth. 
Birds from Sumatra are darker than those from Java 
or from the Malay Peninsula and we therefore use for them 
a name under which they were described by S. Miller, 
