ixuLus. 321 



Genus IXULUS Hodgson, 1844. 



The genus I.tuIhs resembles Yuliina very closely but has the 

 bill shorter, deeper and more carved at the tip ; the rictal bristles 

 and hairs over the bill are weaker and less developed. 



Key to Species and Subsjyecies. 



A. Nape white J. occipitalis, p, 321. 



B. Nape without any white. 



a. A distinct collar round neck. 



a'. A rusty -yellow collar on hind ueck. 



a". Stritie couHned to scapulars and [p. 322. 



upper back ; dai'ker I.JlavicollisJlavicoUis, 



b". Striaj over the whole back to rump ; 



paler I.Jl. baileyi, p. 323. 



b'. A bright chestnut collar on hind 



neck I.Jl. harterti, p. 323. 



b. No collar on hind neck. [p. 324. 



c'. Crown and back brown /. humilis humilis, 



d'. Crown brown, back greyish I. h. clarkii, p. 324. 



(344) Ixulus occipitalis. 



The Chestnut-headed Ixulus. 



Siva occipitalis Blyth, J. A. S. B., xiii, p. 937 (1844) (Nepal). 

 Ixulus occipitalis. Blanf. & Gates, i, p. 217. 



Vernacular names. Temgjjeng-plw or Turring-ng-pho (Lepcha). 



Description. Forehead and crest ferruginous brown ; tips of 



the occipital crest and a bold nuchal patch white ; lores and 



Fig. 59. — Head of /. occipitalis. 



round the eye dusky ; ear-coverts white streaked with rufous ; 

 the rest of the sides of head and neck ferruginous brown ; back, 

 rump and closed surface of wing dull olive-green, the shafts of 

 the feathers of the upper back and scapulars whitish and the 

 outer webs of the earlier primaries hoary-grey ; upper tail-coverts 

 and tail fulvous-brown ; chin and throat white ; breast pinkish 

 brown, streaked with brown ; abdomen and flanks olivaceous, the 

 middle of the foriuer paler ; under tail-coverts ferruginous. 



Colours of soft parts. Iris brown or red-brown ; bill black ; 

 legs pale yellowish, fleshy-brown or "dull olivaceous " (Stevens). 



VOL. I. Y 



