4 REMARKS ON THE GENUS SUYA. 



conspicuous whitish mandibular stripe; somewhat olivaceous grey 

 ear-coverts; forehead, crown, occiput, dusky; back less dusky, and 

 with an olivaceous tinge ; tail feathers narrow and abraded. 



In non-breeding plumage it has the upper mandible pinkish 

 brown ; lower pink ; a conspicuous fulvous white supercilium 

 from nostrils; lores olivaceous; chin, throat, and upper breast, 

 pale, rather sordid fulvous, albescent ou chin and middle of 

 throat; no mandibular stripe ; pure olive brown ear-coverts ; fore- 

 head, crown, occiput and back, pure olive brown ; tail feathers 

 much broader and not abraded. 



In intermediate stages, sometimes the cap is shaded with 

 dusky, and the breast feathers (and these only) very narrowly 

 fringed laterally with black. 



In this stage the bird is so extremely like S. supereiliaris, 

 Anderson, that I have felt doubtful of their distinctness; clearly, 

 if not identical, supereiliaris is the corresponding intermediate 

 plumage of a closely-affined species; but there are points of dif- 

 ference which seem to me to point to its being distinct. 



In supereiliaris, the chin and throat are a much cleaner 

 purer creamy than in any specimen of atrogularis that I 

 have seei, (and 1 have between 50 and 60 before me now). 



The si percilium is pure white, while in atrogularis it is ap- 

 parently a^ways pale fulvous ; and the flanks and sides are clear 

 buff, while in atrogularis they seem to be invariably tinged 

 strongly with olivaceous ; and the lores and feathers behind the 

 eye are much darker than in any specimen of atrogularis that 

 has not got the chin and throat black. 



Suya khasiana, a perfectly distinct species, but goes through 

 precisely the same stages of plumage. 



In the full breeding plumage its bill is darker ; it has no super- 

 cilium ; its lores are dusky ; chin, throat, and upper breast pure 

 black ; white mandibular stripes similar to those of atrogularis ; 

 very similar ear-coverts, but forehead, crown, and occiput dull 

 rufescent, and back strongly rufescent olive; narrow and 

 abraded tail feathers. 



In the non-breeding plumage its bill is paler ; it has a conspi- 

 cuous white supercilium ; its lores are white ; chin, throat, and 

 upper breast nearly pure white, a little creamy; no mandibular 

 stripes; clear olivaceous brown ear-coverts; and forehead, crown, 

 and occiput clear rufous, and back only slightly browner ; tail 

 feathers much broader and unabraded. 



This too has an intermediate stage, in which the breast feathers 

 show very narrow black lateral margins, in which the red of the 

 head is somewhat duller, and in which there is a dark spot in 

 front of the eye. 



