90 



PEOCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. C4. 



In the original description only the measurements of the type were 

 given, the averages of the series are as follows: Ten males, wing. 

 62-67 (64.3) ; tail, 43.5-4T (45.2) ; culmen, 12.5-14 (13.4) ; and five 

 females, wing, 60-64.5 (62.7) ; tail, 42.5^5.5 (43.9) ; culmen, 12.5-13.5 

 (13.1). 



Since the above was written, J. H. Fleming has loaned the museum 

 a small series of cotypes of Pseudozosterops squamiceps (Hartert) 

 and upon comparison with the above species they are found to be 

 even more distinct than first supposed. Pseudozosterops squainiceps 

 appears to be slightly larger with a heavier bill ; the feathers of the 

 occiput broader and more rounded. The color differences are best 

 given in parallel columns, as follows: 



r. squamiceps. 



Above darker warbler green. 



Top of head chaetura drab, with a 

 whitish shaft streak and silvery edges 

 to the feathers. 



Frons hardly lighter than the crown. 



Ear coverts much darker with the 

 light shaft streaks almost obsolete. 



Throat light olive-gray, the feathers 

 edged with dusky, making it appear 

 still darker. 



Breast oil yellow. 



P. striaticeps. 



Above lighter warbler green. 



Top of head dark neutral gray with 

 more conspicuous shaft stripes, hut no 

 silvery edges to the feathers. 



Frous buft'y white. 



Ear coverts lighter with the light 

 shaft streaks broad and pronounced. 



Throat buffy white ; no dusky mar- 

 gins to the feathers. 



Breast lemon yellow. 



When I named the above species, the United States National 

 Museum did not contain a specimen of Lophozosterops or Psewlo- 

 zosterops and I tlien thought they would prove synonymous. The 

 museum has recently acquired a specimen of Pseudozosterops inul- 

 leri (the type of the genus) and structurally it is much like Chloro- 

 charls squamiceps Hartert, especially in the rounded tip to the 

 crown feathers. Lophozosterops dohertyi Hartert '^^ (type of the 

 genus), judging from figures and plate, in style of coloration comes 

 very close to the Celebes sjDecies and Lopho zoster ops suhcristatus 

 Hartert is said to be very similar to L. dohertyi. Pseudozosterops 

 stnaticeps has the crown feathers less rounded than in squamiceps 

 and approaches Zosterops goodfellowi of Mindanao, an aberrant mem- 

 ber of the genus Zosterops^ in structure. The latter has the crown 

 unstreaked and the feathers of this part of the head of a looser tex- 

 ture, but otherwise the style of coloration is similar and it was prob- 

 ably derived from the same stock as the Celebes species, which un- 

 doubtedly were derived from the south. If all the above species were 



«Nov. Zool., vol. 3, 1896, p. 568. 



