248 ON BIRDS FROM NORTH-WESTERN BORNEO. [Mar. 4, 



web ; head crested, black, as also the sides of the face, ear-coverts, 

 and cheeks; entire under surface of body yellow, slightly more 

 olive-green on the sides ; under wing-coverts yellow, the longer ones 

 white washed with yellow ; quills sepia-brown below, white along 

 the edge of the inner webs. 



This species is almost exactly the same as Ruhigula atricapilla of 

 Ceylon, but has not the white tips to the tail-feathers, while its long 

 crest distinguishes it from the Ceylonese species, which is not crested. 

 In the form of the crest and in general appearance it is almost pre- 

 cisely similar to B. flaviventris of Pegu and Tenasserim, but is 

 smaller and has the throat yellow like the rest of the under surface. 

 The single specimen obtained was in Mr. Treacher's collection. 



14. Criniger ruficrissus, sp. n. 



C. similis C. gutturali, sed supra uhique sordidior, supracaudalibus 

 caudaque saturate rufescenti-b runnels ; loris et regione oculari 

 cum genis et regione parotica sordide cinereis, gula alba, corpore 

 reliquo subtus sordide olivascente, subcaudalibus castaneis. Long, 

 tot. 8, culm. 0'85, alcB 4-0, caudcB 4'U, tarsi 0*7. 

 This species is not very different from C. gutturalis, but differs in 

 its much darker coloration, especially on its under surface, which 

 is dull olivaceous, with a white throat and chestnut-red under tail- 

 coverts. There is an entire absence of the pale-brown colour of the 

 breast washed with yellow, and of the light-yellow abdomen and 

 pale fawn-coloured under tail-coverts. The crest is very long in 

 C. ruficrissus, and extends nearly to the mantle. 



15. Ianthocincla TREACHERi, sp. n. (Plate XXIII.) 



I. similis I. mitratse {S. Miill.) ex Sumatra, sed genis, mento et 

 regione parotica sicut caput castaneis facile distinguenda. Long, 

 tola 10, culminis 0'85, alcB 4"15, caudceA'b, tarsi 1*5. 



Adult. General colour above dark ashy grey, with a very slight 

 shade of ochraceous under certain lights ; the wing-coverts slightly 

 more bluish grey than the back ; quills blackish, externally bluish 

 grey, the primaries white along the basal part of the outer web, 

 giving the wing a conspicuous wbite outer aspect ; tail-feathers dark 

 slaty grey, shading into blackish at the end of the feathers ; entire 

 crown and nape, as well as the sides of face, ear-coverts, and fore 

 part of cheeks deep chestnut-red, the under cheek-feathers slightly 

 tipped with ochraceous ; frontal plumes with lanceolate tips of light 

 ashy grey or hoary whitish ; under surface of body dull ochraceous 

 brown, with lighter shaft-lines of pale ochraceous, imparting a striped 

 appearance to the throat and breast ; the sides of the body more 

 ashy grey ; chin chestnut, like the sides of the face ; thighs dark 

 grey, with a few chestnut feathers near the tarsal bend ; inider 

 tail-coverts chestnut ; under wing-coverts ashy grey, slightly marked 

 with ochraceous ; quills sepia-brown below, paler along the edge of 

 the inner web. 



Four specimens are sent by Mr. Treacher, all adult, and exactly 

 similar iu plumage. On comparing them with Sumatrau specimens 



