Key to the Species*. 



With yellow eyebrow. 

 a'. Larp-ei- : throat greenish like the rest of the under 



surface ohscurus, p. 4. 



b'. Smaller : throat yellow like the sides of the face, 



contrasting' with the green breast and abdomen hicidus, p. 5. 



c'. Throat and underparts entirely yellow olwaceus, p. 4. 



With a grey eyebrow, ashy below lucidus juv., p. 5. 



1. Hemignatlius obscurus. 



Hook-billed Green Creeper, Lath. Gen. Syn. i. pt. 2, p. 703, pi. 33. 



fig. 1 (1782). 

 Certhia obscura, Gm. Syst. Nat. i. p. 470 (1788). 

 L'Akaiearoa, Aud. et Vieill. Ois. Dor. ii. pi. 53 (1802). 

 Hemignathus obscurus, Licht. Ahhandl. K. Akad. Bei-lin, 1838, 



p. 449, tab. T. fig. 1 ; Reichenh. Handh. Scans, p. 312, Taif. dxci. 



fig. 4009 (1853) ; LicM. Nomencl. Av. Neotr. p. 55 (1854) ; Cass. 



U.S. Expl. Exited., Birds, p. 178 (1858) ; Dole, Proc. Best. Soc. Nat. 



Hist. xii. p. 298 (1869) ; Sclater, Ibis, 1871, p. 359 ; Fi7isch, Ibis, 



1880, p. 80, 

 Drepanis (Hemignathus) ellisiana. Gray, Cat. B. Trap. Isl. Pacijic 



Ocean, p. 9 (1859). 

 Drepanis ellisiana, Gray, Hand-l. B. i. p. 114, no. 1408 (1869). 



Length 7 inches. Bill an inch and three quarters long, and bent 

 quite in the shape of a semicircle ; the under mandible shortest by 

 a quarter of an inch ; colour of both brownish black ; the nostrils 

 covered with a membrane ; between the bill and the eye is a streak 

 of brown ; the plumage in general is olive-green, palest beneath, 

 and somewhat inclined to yellow ; quills and tail dusky ; the last 

 even at the end and edged with yellow-green ; legs dusky brown ; 

 the feathers just above the knee, or garter, white ; the hind toe 

 pretty long. (^Latham.) 



Hah. Sandwich Islands. 



2. Hemignathus olivaceus. 



Heterorhynchus oUvaceus, Lafr. Mag. de Zool. 1839, pi. 10 ; Flor. 



Prev. et Des Murs, Voy. Venus, Atlas, pi. i. ; Meichenb. Handb. Scans. 



p. 313, Taf. dxci. figs. 4010-11 (1853); Cass. U.S. Expl. Exped., 



Birds, p. 179 (1858) ; Dole, Proc. Bost. Soc. Nat. Hist. xii. p. 298 



(1869) ; Sclater, Ibis, 1871, p. 359. 

 Vestiaria heterorhynchus. Less. Rev. Zool. 1842, p. 209. 

 Drepanis lucida, Gray, Gen. B. i. p. 96 (1847). 

 Hemignathus lucidus, Flor. Prev. et Des Murs, Voy. Venus, texte, 



p. 191 (1855, nee Licht.). 



* Having but one specimen of Hemignathus in the Museum collection, I have 

 been unable to describe all the species from personal observation, and have 

 been obliged to draw up the characters for the present " Key " from Lichteu- 

 stein's plate and the other figures published by the French naturalists. 



