Rukia oleaginea (Hartlaub and Finsch)
Yap Greater White-eye
Zosterops oleaginea Hartlaub and Finsch, Proc. Zool. Soc. London, 1872, p. 95. (Type locality, Uap.)
Zosterops oleaginea Gräffe, Journ. Mus. Godeffroy, 2, 1873, p. 122 (Yap); Gadow, Cat. Birds British Mus., 9, 1884, p. 187 (Yap); Finsch, Das Tierreich, no. 15, 1901, p. 24 (Yap); Dubois, Syn. Avium, 1, 1902, p. 708 (Uap); Reichenow, Die Vögel, 2, 1914, p. 469 (Karolinen=Yap); Takatsukasa and Kuroda, Tori, 1, 1915, p. 64 (Mackenzie); Stresemann, Mitt. Zool. Mus. Berlin, 17, 1931, p. 230 (Yap); Hand-list Japanese Birds, rev., 1932, p. 173 (Yap); Hand-list Japanese Birds, 3d ed., 1942, p. 192 (Yap).
Zosterops oleaginea Giebel, Thes. Ornith., 3, 1877, p. 777 (Mackenzie); Schmeltz and Krause, Ethnogr. Abth. Mus. Godeffroy, 1881, p. 391 (Yap); Wiglesworth, Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 37 (Uap); Oustalet, Nouv. Arch. Mus. Hist. Nat. Paris, (3), 7, 1895, p. 208 (Uap); Bolau, Mitteil. Naturhist. Mus. Hamburg, 1898, p. 60 (Yap).
Tephras oleaginea Matschie, Journ. f. Ornith., 1901, pp. 112, 113 (Yap).
Kubaryum oleaginus Momiyama, Birds Micronesia, 1922, p. 1 (Yap); Kuroda, in Momiyama, Birds Micronesia, 1922, p. 77 (Yap).
Kubaryum oleagineum Mathews, Syst. Avium Australasianarum, 2, 1930, p. 712 (Yap).
Rukia oleaginea Mayr, Amer. Mus. Novit., no. 1269, 1944, p. 7 (Yap); idem, Birds Southwest Pacific, 1945, p. 300 (Yap).
Geographic range.—Micronesia: Caroline Islands—Yap.
Characters.—According to Hartlaub and Finsch (1872:95), "General colour a deep oil-green, with a decided fulvous hue; underparts a little paler, and a little more yellowish; eye-ring satin-white; ears blackish; upper and under tail coverts with a slight rufous tinge; wing- and tail-feathers blackish, with oil-green margins; under wing-coverts whitish-grey; beak fulvous, under mandible, except at the tip, yellowish; feet pale, probably yellow; iris reddish white."
Remarks.—No specimens of R. oleaginea have been examined by me, and I am following Mayr (1944b:7) in including it with the other large white-eyes of Micronesia in the genus Rukia.