Sir 



CHASIEMPIS SANDVICENSIS. 



ELEPAIO. 



"Sandwich Flycatcher/' Latham, Gen. Synops. iii. p. 344 (1783). 



?" A small bird of the flycatcher kind," King, Voy. Pacif. Ocean, iii. p. 119 (1784). 



Muscicapa sandwichensis, Gmelin, Syst. Nat. i. p. 945 (1788) ; Donndorff, Orn. Beytr. ii. p. 591 



(1795) ; Tiedemann, Anat. und Naturgesch. Vog. ii. p. 429 (1814) ; Vieillot, N. Diet. d'Hist. 



Nat. xxi. p. 472 (1818) ; id. Encycl. Method, p. 814 (1823) ; G. R. Gray, Gen. B. i. p. 263 



(1846). 

 Muscicapa sanduicensis , Latham, Ind. Orn. ii. p. 479 (1790). 

 " Gobe-mouche brun des iles Sandwich" (sp. 1), Virey (Sonnini), Hist. Nat. Buffon, Ois. xiv. p. 171 



(1802). 

 Muscicapa sandvicensis, Stephens, Shaw's Zool. x. p. 394 (1817). 

 Chasiempis sandvicensis, Cabanis, Arch. f. Naturgesch. xiii. p. 208 (1847) ; Sclater, Ibis, 1871, 



p. 360; id. Proc. Zool. Soc. 1878, p. 346; id. Voy. ' Challenger/ p. 94 (1881) ; Sharpe, Cat. 



B. Brit. Mus. iv. p. 232 (1879). 

 Chasiempsis sandwichensis, Bonaparte, Consp. Av. i. p. 327 (1850) ; Finsch & Hartlaub, Faun. 



Centralpolyn. p. xxxv (1867). 

 Chasiempsis sandvicensis, Hartlaub, Arch. f. Naturgesch. 1852, i. p. 133; id. Journ. f. Orn. 1854, 



p. 170. 

 Cnipolegus, sp. ?, Sclater, Cat. Am. B. p. 203 (1862) {cf. Proc. Zool. Soc. 1873, p. 555). 

 Eopsaltria sandvicensis, Dole, Proc. Bost. Soc. N. H. 1869, p. 300; id. Hawaiian Alman. 1879, p. 48. 

 Chasiempis sandwichensis, Sclater, Ibis, 1885, p. 18 (partim), pi. i.; Rothschild, Avif. Laysan, p. 71, 



pi. — . figs. 1, 2, 3, and pi. — . fig. 1 (1893) ; Perkins, Ibis, 1893, p. 109. 

 Chasiempis ridgwayi, Stejneger, Proc. U.S. Nat. Mus. 1887, p. 89; S. B. Wilson, Proc. Zool. Soc. 



1891, p. 166; Rothschild, Bull. Brit. Orn. Club, i. p. Ivi (1893). 

 Chasiempis ibidis, Stejneger, Proc. U.S. Nat. Mus. 1887, p. 89; S. B. Wilson, Proc. Zool. Soc. 



1891, p. 166. 



Soon after my return to England at the end of the year 1888 I proceeded to sort out 

 and examine the large series of specimens of birds of the genus Chasiempis that I had 

 procured from each of the three islands of the group on which it occurs, namely, 

 Hawaii, Oahu, and Kauai. Owing to the change of plumage which its members 

 undergo in their progress to maturity, and also to the fact that they occasionally pair 

 and, to all appearance, breed before assuming the fully adult dress, this was no easy 

 task; but I presently arrived at the conclusion that there were three species, each of 

 them peculiar to one or the other of the three islands named, and then the difficulty 

 was to assign to them proper names out of the many that had been conferred, for I 

 hardly ventured to suppose that I had to bestow a new one. My conclusion I now find 

 to have been right; but, unfortunately, I was induced subsequently to abandon that 

 opinion, to which I now recur. 



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