1918. ] H. C. Rosinson & C. B. Ktoss: Birds. 217 
Cettia sumatrana, Ogilvie Grant, Bull. Brit. Orn. Club, 
XXXVI, p. 66 (1916). 
a-k. 54,6. Korinchi Peak, Sumatra, 7,300 feet. 
24th April-15th May, 1914. [Nos. 1127-9, 
1139-40, I193, I2II, 1249, 1310, 1440, 1549. ] 
Fy. ~3¢, 3%, r% imm. Korinchi. Peak, Sumatra, 
8-11,000 feet. 27th April-gth May, r1grq. 
[Nos. 1195, 1282-3, 1340, 1370, 1405, 1424.]| 
“Tris hazel, bill dark horn, gape and basal half of lower 
mandible yellow, feet brown.” 
Nos. 1340 (male) and 1193 (female), types of the species. 
This little warbler did not occur below about 7,000 fee} 
and ranged higher than any other vertebrate on the peak, one 
specimen having being shot at rather over 11,000 feet at the 
limit of vegetation. 
Though not at all shy, like all birds of its group it was 
very skulking in its habits and ran about near the ground 
among dense vegetation and rubbish and was consequently 
rather hard to get. 
Young birds have the belly, under wing coverts and 
axillaries washed with pale sulphur yellow and in all the 
superciliary stripe, which runs from the lores to well behind 
the eye, is well marked and somewhat tinged with buff. 
We have little doubt that the bird obtained by Dr. H. O. 
Forbes in the crater of the Dempo at 9,000 feet and identified 
by Nicholson (loc. cit.) to be Lusciniola fuliginiventiis is really 
referable to this species, which has only ten tail feathers and 
must therefore be a Cettia. 
The present species is close to Cettia oreothila, of Kina 
Balu, as well as to Ceitia montana of Java, with which we have 
compared it and from which we have found it to differ mainly 
in richer colouration. 
The first primary is about half the length of the second, 
which is much shorter than the third. The 5th. 6th and 7th 
are about equal and longest and the 1oth is about equal to the 
third. 
The dimensions of the series are very constant, the wing 
being 48-55 mm. and the tarsus 21, 25, most specimens being 
wing 53 and tarsus, 22 mm., practically the same dimensions 
as given by Hartert for his specimens of C. montana from the 
Arjuno, East Java. 
The genus has not hitherto been recorded from Sumatra. 
(This bird was figured as Cettia montana (Hcrsf.) before 
it was possible to compare it with material which showed it to 
be distinct). 
Part Ils Vertebrata. 18 
