■i. OLIGURA. 603 



Hab. A dull-coloured race of the Himalayan N. chrysmi from 

 which it differs lu the less vivid colour of the head and uuderparts 

 the back and wing-coverts being more of an ashy olive-colour and 

 the margins to the quills and tail-feathers much duller. I have not 

 seen a specimen from Sumatra ; and thus I cannot tell for certain 

 whether the species from the hills of the latter island is identical 

 with that of the Burmese and Tenasserim hills ; but it seems hi"-hly 

 probable that this will prove to be the case. The Khasia birds in 

 Colonel Grodwin-Austeu's collection also appear to be S. assimilis. 



2. OLIGURA. 



Tesia (pt), Hodt/s. J. A. S. Beng. vi. p. 101 (1837). ^^^' 



Oligura, HodysRZ S 1845, p. 25 0. castaneocoronata. 



Microcercus, Fttz. Sttz. k. Akad. Wien, xlvi. p. 215 



(1^^^) 0. superciliaris. 



Cf. Sharpe, Brit. Mus. Cat. B. vi. p. 301. 



^ange. Eastern Himalayas, ranging into Assam and the Muninur 

 and Mishmi hills. -^ 



Key to the Species. 



a. Head chestnut; under surface bright yellow, castaneocoronata, r^. QO^. 



b. Head yellow or olive-greeu ; under surface 



slatj-^blue •••••••.•... cyanwentris, p. 004. 



c. Head black, with a broad grey eyebrow • ab- 



domen whitish super ciliarh, p. 005. 



1. Oligura castaneocoronata. 

 Sylvia castaneocoronata, Burton, P. Z. S 1835 p 152 

 Tesia fiaviveuter, Hodys J. A. S. Beng. vi. p. lb2'; id. Icon. ined. in 



■P'-it Mu.s. pi. xlviii. hg. 1, et^/;;j. pi. 28 (no 490) 

 Ohgura flaviventer^orf^*. in G7-m/s Zool. Misc. p. 82 (1844): id. 



1 . Z. o. lo45, p. 25. 

 Tesia castaneocoronata, Blyth, J. A. S. Beng. xiv p 586 (1845) 

 aray, Cat.Mamm.etc. Nepal pres. Hodgs. p. 62 (1846); id. Gen 

 i7oP;i^^.n\P^V;^^-> ^ ^1^*^^' ^^^^^'' t^'- ^- Mus. As. Soc. 



f ■ fi ^"- ^¥«^- 1; P- 179 (1854) ; Gould, B. Asia, pt. 10 (1858) ; 

 n«mf • ^'^•/- ?• f ^(1«62) ; Gray, Hand-l. B. i. p.' 188, no. 2556 

 (1869); Godwin-Aust. J. A. S. Bern/, xxxix. p. 101 (1870^ 

 Ifume, Str. F. 1879, p. 93. f \ j 



Adult. General colour above dark green, the wing-coverts like 

 the back ; quills dusky brown, externally edged with olive-green • 

 tail-feathers dull olive-green ; crown of head as far as the occiput' 

 entire sides of face, and ear-coverts deep chestnut ; the lores slio-htlv 

 mottled with yellow bases to the feathers ; cheeks and under surface 

 of body bright yellow, with the sides of the body dark green, some 

 of the feathers on the chest also with slight indications of <^reen 

 margins ; thighs green, with a spot of yellow above the tarsal ioint • 

 under tail-coverts greenish yellow ; under wing-coverts dark careen • 



