1913.] E. C. Stuart Baker : Birds. 275 



60. Hypothymis azurca (Bodd.)- 



O. and B., vol. ii, p. 49. 

 B. M. Cat., vol. iv, p. 277. 



{a) d', no data. B.N.H.S. No. 54. 



61. Chelidorhynx hypoxanthum (Blyth). 



O. and B., vol. ii, p. 51. 

 B. M. Cat., vol. iv, p. 279. 



[a) cf , Rotung, 1400 ft., 4-iii-i2. I.M. No. 25317. 

 (&) Not sexed. Kobo, 400 ft., 8-xii-ii. I.M. 

 No. 25349. 



(c) Not sexed. Misshing, 2000 ft., Feb. 1912. 



B.N.H.S. No. 19. 



(d) cf , Bipani, Dibang Valley, Mishmi Hills, 2100 ft., 



i8-i-i2 {F.M.B.). 



"Bill: upper mandible black, lower yellowish; legs brown, 

 iris dark. Naga names Pongking-lo or Bang-ho-go." {F.M.B.). 



This little bird was once supposed to be a Flycatcher of high 

 elevations only, but Mr. H. Stevens found it was comparatively 

 common at the foot of the Dafla Hills in winter and Dr. H. N. 

 Coltart obtained it at the foot of the hills near Margherita ; there 

 is nothing surprising therefore in its being found as low as 400 ft. 

 at Kobo. The fact of its having been obtained by each collector 

 at so many places upon this expedition shows that it must be 

 comparatively common throughout the Mishmi, Dafla and Abor 

 Hills. 



62. Rhipidura albicollis kempi, sub-sp. nov. 



O. and B., vol. ii, p. 53. 

 B. M. Cat., vol. iv, p 317. 



{a) c^, Rotung, 7-iii- 12. I.M. No. 25342. 



{b) Not sexed. Kobo, 9-xii-ii. I.M. No. 25353. 



(c) cf , Upper Rotung, 2150 ft. I.M. No. 25358. 



These three specimens are very interesting, their extremely 

 dark colouration at once attracting notice when laid amongst a 

 large series of birds from south of the Brahmaputra. It is exactly 

 matched by a specimen from the Dikrang Valley, in the same 

 district at the foot of the Abor Hills., and is approached by some 

 of the more eastern Nepal skins and by a few from Sikkim. In 

 addition to being darker in colour there is less of a brown tint in 

 the plumage of the Abor birds, the grey black portions showing 

 more as deep ashy than as deep brown. The dimensions do not 

 differ from those of the typical sub-species 



The range of the two sub-species would appear to be as 

 follows : — 



