THE IBIS 



FIFTH SERIES. 



No. XX. OCTOBER 1887. 



XXXVIII. — On an apparently neio Species of Zostero^s fy^om 

 the Island of Anjuan, Comoro Group. By H. B. Tristram, 

 D.D., RR.S. 



(Plate XL) 



I WAS surprised, on looking through my series of Zosterops, 

 to find a specimen which had been obtained by Mr. C. E. 

 Bewsher in 1879, and had been labelled Z^. atijuanensis before 

 I purchased it, but which I had placed, without noticing its 

 label, among my series of grey-backed White-eyes, as the 

 representative of this section from the Comoros. In every 

 pointj except in coloration, it comes very close to Z. anjuan^ 

 ensis, but the measurements are slightly larger. I have 

 compared it with eight specimens of its congener, and do not 

 find in any of them the slightest indications of a tendency to 

 vary or to lose the bright olive-green of the upper parts or 

 the rich yellow of the throat. This bird shows no trace of 

 green on the upper surface, which is of a lightish ashen grey ; 

 but the throat is very faintly washed with yellow, as is a very 

 narrow portion of the forehead. 



I sent my specimens to Professor Newton and Sir Edward 

 Newton, and they coincide in my opinion that it must belong 



SER. V. — VOL. V. 2d 



