FASCICULI MALATENSES 



81 



54. Sibia simillima, Salvad. 



Sibia simillima, Sharpe, P.Z.S., 1886, p. 352 ; 1888, p. 274 ; Bonhote, p. 63. 

 Sibia picaoides simillima, Hartert, p. 567. 



$ , 9 ad. Telom, Perak-Pahang border. 18th to 27th January. 

 (Nos. 546, 549, 550, 591, 594) 



The Long-tailed Sibia has the iris reddish- or hazel-brown, and the bill 

 and feet black. 



' Very common at Telom in flocks of four or five ; contrary to the 

 habits of most of the hill birds, it usually keeps fairly high up in the trees, 

 and is one of the most conspicuous and easily obtained species.' 



55. Mixornis guiaris, (Raffl.) 



Mixornis gularis, Sharpe, P.Z.S., 1888, p. 275; Bonhote, p. 64; Hartert, 

 p. 567. 



<J ad. Bukit Besar, Nawngchik. 2,500 feet. 2nd September. (No. 375) 



$ ad. Ban Sai Kau. 22nd May. 



$ ad. Gedong, South Perak. 8th January. (No. 503) 



$ ad. Jeram Kawan, South Perak. 14th February. (No. 666) 



The Sumatran Yellow-breasted Babbler has the iris brown, the loral-space 

 lead-blue, the bill bluish lead-colour, the feet greenish-brown, and the toes 

 yellow. The black shaft streaks on the feathers of the throat seem to be 

 widest in examples from the southern parts of its range, being most strongly 

 marked in birds from the southern part of the Malay Peninsula and Sumatra. 



56. Stachyrhidopsis chrysaea, (Hodgs.) 

 Cyanoderma chrysaea, Sharpe, P.Z.S., 1887, p. 440. 

 Stachyridopsis chrysaea assimilis, Hartert, p. 566. 



$, 9 ad. Telom, Perak-Pahang border. 3,500 feet. January. (Nos. 538, 552, 580) 



The Golden-headed Babbler has the iris dark sienna, the bill dark lead- 

 colour, paler on tomia and pinkish at the base of the lower mandible, and the 

 feet flesh-colour, inclining to yellowish behind. 



In spite of Mr. Hartert's statement to the contrary (cf. Nov. Zool. ix, 

 p. 566 (1902), I think Dr. Sharpe was perfectly justified in referring the 

 Perak bird, collected by Mr. L. Wray, to this form rather than to S. assimilis. 

 The three specimens now before us agree perfectly with other birds from 

 Perak, and are in my opinion inseparable from typical S. chrysaea, differing 

 from S. assimilis in the colour of the back and underparts which are much 

 brighter yellow. The range of S. assimilis appears to be limited to northern 



