_Halcyon chloris teraokai_ Uchida, Annot. Zool. Japon., 9, 1918, p. 482 (Palau); Kuroda, Ibis, 1927, p. 707 (Pelew); Takatsukasa and Yamashina, Dobutsu. Zasshi, 43, 1931, p. 484 (Pelew); Hand-list Japanese Birds, rev., 1932, p. 180 (Palau); Bequaert, Mushi, 2, 1939, p. 82 (Palau); _idem_, Occ. Papers Bernice P. Bishop Mus., 16, 1941, p. 290 (Palau); Hand-list Japanese Birds, 3d ed., 1942, p. 201 (Babelthuap, Koror, Angaur); Mayr, Birds Southwest Pacific, 1945, p. 293 (Palau); Peters, Check-list Birds World, 5, 1945, p. 209 (Babelthuap, Koror, Angaur); Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 64 (Peleliu, Garakayo). _Sauropatis chloris teraokai_ Oberholser, Proc. U. S. Nat. Mus., 55, 1919, p. 357 (Pelew); Kuroda, in Momiyama, Birds Micronesia, 1922, p. 59 (Angaur); Mathews, Syst. Avium Australasianarum, 1, 1927, p. 381 (Palau). _Geographic range._--Micronesia: Palau Islands--Kayangel, Babelthuap, Koror, Garakayo, Peleliu, Angaur. _Characters._--Adult male: Dorsal surface bluish, head slightly darker, back and scapulars more greenish, rump lighter blue; outer webs of feathers of wing and of tail dark blue, entire first primary blue, inner webs of other primaries black; collar and underparts white; ariculars black with bluish wash, the black extending around neck above white band; spot on upper lores and narrow line above eye white; orbital ring and lower part of lores black; under wing-coverts white; under tail black; feet black; bill black, mandible with whitish base; iris dark brown. Adult female: Resembles adult male, but crown and back more green and less blue; auriculars with greenish-blue wash. Immature: Resembles adult, but feathers of forehead edged with buff; spot on lores and underparts buffy margined with dusky. _H. c. teraokai_ resembles closely _H. c. chloris_ (Boddaert), but more greenish and less bluish, especially on tail. _Measurements._--Measurements are listed in table 33. Adult males and females have similar measurements and are treated together. TABLE 33. MEASUREMENTS OF _Halcyon chloris_ IN MICRONESIA