582 Mr. R. C. L. Perkius — Introduction to 



Division I. 



1 (6). Beak very long and strongly curved, as long 



as or longer than the metatarsus. 



2 (o). Beak black, wholly or in great part ; plumage 



mainly black or black and yellow. Fea- 

 thers of throat not modified. 



3 (4). Plumage black and yellow ; nasal opercula 



not very long Drepanis. 



4 (3). Plumage not at all yellow; nasal opercula 



very much elongated Dvepanorhamplms. 



6 (2). Beak entirely pale ; plumage of adult scarlet, 

 of young yellowish and black-spotted ; 

 feathers of throat much modified, narrow, 

 and stiff Vcstiaria. 



6 (1). Beak never very long', straight or but little 



curved. 



7 (8). A large crest of pale feathers cm'ving over 



the base of the beak Palmeria. 



8 (7). Head without a crest. 



9 (10). Beak moderately long, sharply pointed ; 



body -plumage not variegated with 



strongly contrasted colours Himatione. 



10 (9). Beak rather Finch-like ; body - plumage 



highly variegated Ciridops. 



JJIVISION II. 



1 (4). Beak extremely long and one or both of the 



mandibles strongly curved, the upper one 

 always so and very slender and delicate 

 at its apical portion— so slender as often 

 to be even slightly flexible. 



2 (3). Upper mandible only a little longer than the 



lower, nasal setae altogether wanting. . . . Ileinignathus, 



3 (2). Upper mandible greatly exceeding the 



lower (by from ^ to g its own length), nasal 



setae well developed Heterurhynchus. 



4 (1). Beak not of extraordinary length and much 



curved; if moderately long and curved, 

 then the apical portion of the upper 

 mandible not extremely slender and very 

 little longer than the lower. 



5 (14). Beak never of very robust form, like that of 



a Grosbeak, nor of heavy build, with the 

 upper mandible conspicuously surpassing 



