162 TIMALIID®. 
spotted eggs with the one exception of 7. squamatum, which lays 
them plain blue. Even the shape of the bills and nostrils, 
however, varies only in degree, more or less intergrading with one 
another. 
If Harington and Oates, and before them Gray, thought 
it desirable to split up the genus, we have Hartert on the contrary 
lumping under the one name (Janthocincla), Oates’s genera Lantho- 
cincla, Babax and T'rochalopterum. It must be remembered, how- 
ever, that in the Palearctic region Hartert has to deal with only 
29 species and subspecies, whereas in the Oriental region the 
number is much greater, no less than 40 species and subspecies 
being found in India in this genus alone. 
Oates’s genera, as given in the first edition of the ‘ Avifauna,’ 
seem reasonable and are easy for the student to understand, and 
I retain them in,the present edition. 
In the first edition, however, many geographical races were 
quite wrongly given the status of full species, and these are now 
relegated to their proper position. A few new species and sub- 
species have been added to our list, and we have recognized in this 
genus 12 species and 17 subspecies. 
Key to Species. 
A. Chestnut on crown or nape, or both ...... 7. erythrocephalum, 
B. No chestnut on crown or nape. [p. 162. 
a. Wings brightly coloured. 
a’. Wings chiefly crimson. 
Gi, lea blac koy ver cG suena tubers oe ie T. pheniceum, p. 168. 
Bie Morlverim sonic eieecee cae ee T. milnet, p. 170. 
b'. Wings chiefly bright yellow. 
ce’. Primary-coverts brown 
ad, Primary-coverts black. 
mr 
Sh 
Ale 
a, Tail without white tips ........ T. affine, p. 172. 
Te 
. subunicolor, p. 171. 
|gatum, p. 178. 
variegatum varie- 
[p. 174. 
c'. Wings chiefly slaty-blue variegatum simile, 
d'. Wings with patch of bright blue ....  Z! sgwamatum, p. 174. 
6. Wings dull coloured with no bright patch. 
e'. Upper plumage not striped. 
6'"", Tail with white tips Of: 
é, BYeasGUUlOUS eo. 5 teeter erat: T. cachinnans, p. 176. 
J". Breast whitish, streaked ashy...... T. gerdont, p. 177. 
g''. Breast olive grey-brown .......... T’. henrict, p. 183. 
J'. Upper plumage striped. 
kh", With a white supercilium ........ T. virgatum, p. 179. 
2’, With no white supercilium ...... T. lineatum, p. 180. 
Trochalopterum erythrocephalum. 
This species is a very widely extended one, ranging from the 
Western Himalayas to the south of Tenasserim. As might be 
expected, its geographical variations are great, and it is therefore 
divided into 8 subspecies. 
