614 MANUAL OF PHILIPPINE BIRDS. 



Species* 



a 1 . Eye surrounded by a circle of white feathers ; chin and throat, at least, bright 



lemon-yellow; much smaller in size; wing less than CO mm. 

 6 1 . Under parts not entirely yellow; sides of breast and of abdomen whitish, 



ashy gray, or plumbeous. 

 C L . Median yellow line on breast and abdomen obsolete or wanting; breast 



and abdomen white or very pale gray. 

 d 1 . Smaller; wing, 53 mm. or less; culmen from base, 12 or less; forehead 



duller and less extensively yelow. 



e\ Lighter and more yellow above; ear-coverts lighter and more yel- 

 lowish meyeni (p. 615 > 



e*. Darker and less yellow above; ear-coverts darker and more greenish. 



olive. 

 /*. Smaller. 



g l . Smaller, with no dusky shade under the eye., whiteheadi (p. 615 > 



p 2 . Larger, with a dusky shade under the eye vulcani (p. 616) 



f. Larger halconensis (p. 616) 



d 8 . Larger; wing, about 58 mm.; culmen from base, 14; forehead much 



brighter yellow - batanis (p. 616) 



c*. Median yellow line on breast and abdomen well developed; sides cinereous 



or ashy gray. 

 d 1 . Without a distinct blackish line under the eye; upper parts more 



yellowish. 

 e 1 . Smaller; sides of breast lighter gray; forehead more yellow. 



siquijorensis (p. 617) 

 e 1 . Larger; sides of breast darker gray; forehead less yellow. 



boholensis (p. 617) 

 d*. With a distinct dusky line under eye; upper parts more greenish. 



e 1 . Lores yellow everetti (p. 618) 



e*. Lores dusky basilanica (p. 618) 



6 s . LTmler parts entirely yellow. 



c 1 . Greatest width of white eye-ring 3 mm _ meyleri (p. 618) 



c*. Greatest width of white eye-ring about 1.5 mm. 



d 1 . Upper parts yellower; under parts brighter and yellower. 



e 1 . Larger; wing, about 55 mm.; a distinct black line under eye to base 



of bill richmondi (p. 619) 



e*. Smaller; wing, about 50 mm.; dusky line under eye less distinct and 

 not reaching the base of bill. 



f. General color duller _ luzonica (p. 619) 



/*. General color brighter; lores and frontal band brilliant golden 



yellow - aureiloris (p. 619) 



<P. Upper parts greener; under parts paler and, except on chin and throat, 

 slightly greener; eye-circle interrupted in front by a small black spot. 



nigromm (p. 620) 



* The construction of a key to the species of silvereyes is rendered very dif- 

 ficult by the nature of the characters upon which a number of the species are 

 based. Some of the species can be determined only by the actual comparison 

 of specimens in fresh plumage. Immediately following the molt, the colors are 

 bright and yellowish, but after a few months the feathers become much abraded 

 and the colors become duller, dingier and greener. 



