250 TIMALIID A. 
Birds in intermediate plumage have the forehead and a varying 
amount of the sides of the head white; the chin and throat 
become pure white, and even the pes breast loses many of the 
streaks. 
The adult plumage seems to take some time to acquire, and 
probably, as in Gampsorhynchus, the wholly pure white head and 
under parts are not acquired until the bird is two years old. 
Distribution. The limestone ranges of ‘Tenasserim, such as 
those at Wimpong, the Toungsha Gyne River and Momenzeik. 
Nidification unknown. 
Habits. Davison says that they wander about the lmestone 
rocks in pairs, singly or in small parties. They are excessively 
lively, sprightly birds, keeping up a continuous twittering, 
chattering note, and occasionally one will perch itself on some 
point of a rock and, with lowered wings and erected tail, pour 
forth a fine and powerful song. They feed principally on insects 
and land-shells, but also in part on seeds. ‘They are not shy and 
are easy to watch and procure. He observes that this bird is 
‘really a little Thrush.” 
Genus TURDINULUS Hume, 1878. 
The genus 7urdinulus of Hume, with which I unite Corytho- 
cichla, contains a small group of Babblers which are extraordi- 
narily Wren-like in appearance, habits and even nidification, and 
at one time I felt convinced that they should be removed en bloc 
to the Troglodytide. Closely connected, however, with this 
genus are the birds of the genus /timator, which seems to serve 
as a connecting link with other forms of Timalide. Robinson 
and Kioss’s recently-described Rimator danjoui seems to still 
further strengthen these links and, though with some reluctance, 
I leave them in this sub-family. | 
They are all birds with tails very much shorter than the wing ; 
the plumage is soft, lax and squamated; the bill like that of 
Drymocataphus but with longer rictal bristles. The nostrils are 
exposed and are mere slits with no overhanging membrane. 
The tarsus is very stout and long and the feet large. 
Key to Species and Subspecies. 
A. Tail more than half length of wing. 
a. ae of wing-feathers ‘white. 
. Sides of breast and flanks chestaut. [caudatus, p. 251, 
a’. Wing 65 mm. orunder ~ .4./.3 60. . TT. brevicaudatus brevi- 
BY Wins over 6b mamapine. .f. telcos T. b. venningi, p. 252. 
b'. Sides of breast and flanks reddish 
BLOW) chs siaiats os oisihe ts cuerater ieee naNe le T. b. striatus, p. 251. 
B. Tail less than half the length of wing. 
b, Feathers of the throat spotted with black. 
ec’. Colour brown washed with rufous, [p- 208. 
especially on flanks...... essaclcaes | Lemobentemovertt, 
