_Rectes tenebrosus_ Hartlaub and Finsch, Proc. Zool. Soc. London,
1868, p. 6. (Type locality, Pelew Islands.)
_Rectes tenebrosus_ Hartlaub and Finsch, Proc. Zool. Soc. London,
1868, p. 118 (Pelew Islands); _idem_, Proc. Zool. Soc. London,
1872, pp. 89, 99 (Pelew); Finsch, Journ. Mus. Godeffroy, 8, 1875,
pp. 4, 18, pl. 3, fig. 1 (Palau); Schmeltz and Krause, Ethnogr.
Abth. Mus. Godeffroy, 1881, p. 407 (Palau); Wiglesworth, Abhandl.
und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 27
(Pelew).
_Colluricincla tenebrosa_ Gray, Hand-list Birds, 1, 1869, p. 386
(Pelew); Dubois, Syn. Avium, 1, 1902, p. 496 (Pelew); Mayr, Amer.
Mus. Novit., no. 1269, 1944, p. 5 (Palau); _idem_, Birds Southwest
Pacific, 1945, p. 297 (Palau); Baker, Smithson. Misc. Coll., vol.
107, no. 15, 1948, p. 69 (Peleliu, Ngabad, Garakayo).
_Pinarolestes tenebrosus_ Sharpe, Cat. Birds British Mus., 3,
1877, p. 298 (Pelew); Matschie, Journ. f. Ornith., 1901, p. 112
(Palau); Reichenow, Die Vögel, 2, 1914, p. 296 (Palau); Takasukasa
and Kuroda, Tori, 1, 1915, p. 54 (Pelew); Kuroda, in Momiyama,
Birds Micronesia, 1922, p. 69 (Pelew); Hand-list Japanese Birds,
rev., 1932, p. 174 (Palau).
_Myiolestes tenebrosus_ Tristram, Cat. Birds, 1899, p. 188
(Pelew).
_Caleya tenebrosus_ Mathews, Syst. Avium Australasianarum, 2,
1930, p. 649 (Pelew).
_Malacolestes tenebrosus_ Mayr, Amer. Mus. Novit., no. 590, 1933,
p. 5 (Palau); Hand-list Japanese Birds, 3d ed., 1942, p. 193
(Babelthuap, Koror, Peliliu).
_Geographic range._--Micronesia: Palau Islands--Babelthuap, Koror,
Garakayo, Peleliu, Ngabad.
_Characters._--Adult: Upper parts between "snuff brown" and
"bister," head blacker; chin, throat, and upper breast like upper
parts but darker; lower breast and abdomen lighter and more buffy,
sides darker; feathers of underparts with darker shafts producing
a streaked appearance; underside of wing and under tail-coverts
light-colored; bill dark brown; feet lighter brown; iris
yellowish. Female smaller.
Immature: Resembles adult, but head and neck lighter; ear-coverts,
sides of neck, throat, upper breast darker; lower breast and
abdomen paler.
_Measurements._--Measurements are listed in table 43.