138 TIMALIID #. 
l'", Outer edges of primaries conspi- 
cuously parti-coloured. 
'. Nostrils overhung by hairs....... PSEUpOMINLA, p. 286. 
m4, Nostrils overhung by numerous 
small hairs; tail strongly 
oraduated, 
2°. Bill narrow ; hind toe and claw 
CUTE 3, 5/3) 5 Gee tec FULVETTA, p. 289. 
j» Bill broad; hind claw shorter 
than himd Woes. ca. 2%. ack Lroparus, p. 298. 
d. Wings longer, not so rounded and not fitting 
close to the body. 
’. Wing more than three times length of 
CATSUS, 6.5.4.2 ae AO es o's 3 SL HoRIzIuuas, p. 257. 
v’. Wing less than three times length of tarsus. 
g'. Tail more than three times length of [p. 258. 
CATSUSRIS A 4c Le TIE ee Seeks kas ERyTHROCICHLA, 
h". Tail equal to twice length of tarsus.. A’ rHOSTOMA, p. 259. 
C. Tail under 45mm, 
e. Lill as long as the head; curved downwards. RimaTor, p. 255. 
J. Bill half as long as the head; straight.... TurDINULUS, p. 250. 
Genus DRYONASTES Sharpe, 1883. 
The genus Dryonastes, of which D. ruficollis is the type, 
contains those Laughing-lThrushes which have the nostrils almost 
completely hidden by bristles, and in many respects show a 
similarity to the Corvide, from which, however, in others they 
are as widely divided as they are in their habits and nidification. 
They are all noisy, gregarious birds, feeding principally on the 
ground but also on bushes, and they eat both insects, seeds and 
fruit. 
Harington proposed to divide the birds of this genus into two 
genera on account of the varying degree of density in the plumes 
and bristles at the base of the bill and by the differences in the 
shape of the bill itself. To be consistent, however, one would 
have to make yet further genera, for if rujicollis differs in degree 
from cerulatus, so also galbanus differs to an equal extent from 
ruficollis. Under the circumstances it would seem wiser to keep: 
them together, and this I do. 
Key to Species and Subspecies. 
A. Chin and throat black. 
a. Ear-coverts black ............ D. ruficollis, p. 139. 
6. Ear-coverts white. 
aeback chestnut os oe-eiecee eee D. nuchalis, p. 140. 
6'. Back olive-brown .......... D, chinensis, p. 141. 
B. Chin and throat white. 
c; Mailiwith no pale tip. ..)..09 D. cerulatus cerulatus, p. 141. 
d. Tail with pale tip. 
ce’. Ear-coverts white .......... D. c. subcerulatus, p. 142. 
d'. Ear-coverts brown .......... D. c, kaurensis, p. 148. 
C. Chin and throat chestnut-brown .. DD. sannio, p. 144. 
D. Chin black, throat yellow ........ D. galbanus, p. 145. 
