_Artamus pelewensis_ Finsch, Journ. Mus. Godeffroy, 12, 1876, p.
41. (Type locality, Palau.)
_Artamus leucorhynchus_ Hartlaub and Finsch, Proc. Zool. Soc.
London, 1868, pp. 116, 118 (Pelew); _idem_, Proc. Zool. Soc.
London, 1872, pp. 89, 99 (Pelew); Finsch, Journ. Mus. Godeffroy,
8, 1875, pp. 4, 18 (Palau); Walden, Ibis, 1876, p. 188 (Pelew).
_Artamus pelewensis_ Finsch, Proc. Zool. Soc. London, 1877 (1878),
p. 739 (Pelew); Tweeddale, Ibis, 1878, p. 385 (Pelew); Sharpe,
Cat. Birds British Mus., 13, 1890, p. 9 (Pelew); Wiglesworth,
Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p.
26 (Pelew); Bolau, Mitteil. Naturhist. Mus. Hamburg, 1898, p. 62
(Palau); Matschie, Journ. f. Ornith., 1901, p. 112 (Palau);
Dubois, Syn. Avium, 1, 1902, p. 533 (Pelew); Reichenow, Die Vögel,
2, 1914, p. 346 (Pelew).
_Artamus leucorhynchus pelewensis_ Stresemann, Novit. Zool., 20,
1913, p. 293 (Palau); Hand-list Japanese Birds, 3d ed., 1942, p.
193 (Babelthuap, Koror); Mayr, Birds Southwest Pacific, 1945, p.
297 (Palau).
_Artamus melanoleucus pelewensis_ Kuroda, in Momiyama, Birds
Micronesia, 1922, p. 69 (Pelew); Mathews, Syst. Avium
Australasianarum, 2, 1930, p. 635 (Pelew); Hand-list Japanese
Birds, rev., 1932, p. 174 (Palau).
_Geographic range._--Micronesia: Palau Islands--Babelthuap, Angaur.
_Characters._--Adult: Upper surface black, except for back which
is slightly brownish and for rump which is white; underparts
white, except for chin, throat and upper breast which are black;
wings with grayish tips; bend of wing black; bill milky blue,
nostril and tip black; feet black; iris dark brown.
Immature: Resembles adult, but black feathers with brownish
tinges; primaries tipped with white.
_Measurements._--Measurements are listed in table 44.