Birds of Celebes: Zosteropidae. 
491 
Only a single specimen of this species is known, the type which Mr. 
Nehrkorn has had the great kindness to lend us. It has close affinities with 
Z. atrifrons of North Celebes, which differs by its smaller size, by its having the 
black of the forehead carried a little further towards the crown, the upper sur- 
face somewhat darker, especially on the rump and upper tail-coverts, the chin 
and throat greenish ochre-yellow and notably darker, the breast paler ashy, the 
bill black instead of brown, the feet lead-grey instead of pale brown. Zosterops 
mhrkorni, in the opinion of Prof. W. Blasius, is most like Z. chrysolaema Salvad. 
of the Arfak Mountains of North-west New Guinea, from which it differs in 
having the breast and sides of the abdomen ashy, the thighs pale yellow, the 
forehead and anteocular region dusky black, the subocular region green yellowish, 
and by the colour of the bill and feet. 
*197. ZOSTEROPS SARASINORUM M.&Wg. 
Celebes Mountain White-eye. 
Plate XXXI. 
Zosterops sarasinorum (1) M. & Wg., J. f. 0. 1894, 114; (2) iid., Abli. Mas. Dresd. 1895, 
Ni’. 8, p. 12; (3) iid., ib. 1896, Nr. 1, p. 6; (4) Hart., Nov. Zool. 1896, 153; (5) id., 
ib. 1897, 157. 
Diagnosis. Like Z. palpehrosa (Temm.) of India, but the sides very j)ale yellowish drab, 
not grey (see Hartert 5), throat and jugulum canary-yellow, passing into lemon- 
yellow on the sides of throat and juguhun, dun and anterior malar region, this 
colour being cleaidy separated from (not bhmding with) the yellow olive-green of the 
hind cheeks, eai*-coverts and sides of neck; upjier surface somewliat yellower oHve-green. 
Adult male. Above yellow olive-green, most olivaceous on the wing-coverts and mantle, 
yellowest on the rump and upper tail-covcrts ; supra-loral region and forehead at 
base of bill lemon-yellow, passing on the forehead into the yellow olive-green of 
the crown; orbital ring white; a narrow loral streak continued as a line under 
the orbital ring black; hind cheeks, ear-coverts and sides of neck conco- 
lorous with the upper surface; chin, anterior malar region, sides of throat and 
of jugulum lemon-yellow, lighter on the middle of throat and jugulum; under tail- 
coverts less pure yellow; remaining under-parts white, washed with huffy drab, 
chiefly on the sides and flanks; under wing-coverts and inner edges of quills 
below whitish, the former washed with yellow especially on the metacai’pal edge 
(type, (^, Mount Klabat, circa 6000 ft., N. Celebes, end of September, 1893: Sarasin 
Collection). 
“Iris sepia; bill above black, base of under mandible bluish; feet and legs 
slate-colour” (Sarasins). 
Immature male. The yellow on the supra-loral region and forehead much less developed; the 
yellow of the gular region much paler and less pure; the upper surface less yellow 
in tint (rf, Mt. Klabat, c. 6000 ft.: 24. — 26. Sept. 1893: Sarasin Collection). 
The original colours of four other specimens from the same point have been 
destroyed by preservation in alcohol i). 
1) Alcohol works disastrously upon the yellow olive-green tints of Zosterops, converting them into greyish 
olive, so that specimens so preserved have been mistaken by competent ornithologists for new species. 
62 * 
