Myiagra freycineti Reichenow and Schalow, Journ. f. Ornith., 1884, p. 395 (Mariannes = Guam); Oustalet, Le Nat., 1889, p. 260 (Mariannes = Guam); Wiglesworth, Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 24 (Marianne = Guam); Oustalet, Nouv. Arch. Mus. Hist. Nat. Paris, (3), 7, 1895, p. 194 (Guam); Hartert, Novit. Zool., 5, 1898, p. 54 (Guam); Wheeler, Report Island of Guam, 1900, p. 13 (Guam); Matschie, Journ. f. Ornith., 1901, pp. 112, 113 (Guam); Seale, Occ. Papers Bernice P. Bishop Mus., 1, 1901, p. 50 (Guam); Safford, Osprey, 1902, p. 69 (Guam); idem, Amer. Anthro., 4, 1902, p. 711 (Guam); idem, The Plant World, 7, 1904, p. 263 (Guam); idem, Contr. U. S. Nat. Herb., 9, 1905, p. 79 (Guam); Reichenow, Die Vögel, 2, 1914, p. 260 (Marianen); Cox, Island of Guam, 1917, p. 21 (Guam); Kuroda, in Momiyama, Birds Micronesia, 1922, p. 65 (Guam); Bryan, Guam Rec., vol. 13, no. 2, 1936, p. 25 (Guam); Hand-list Japanese Birds, 3d ed., 1942, p. 195 (Guam); Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 68 (Guam).
Submyiagra freycineti Mathews, Syst. Avium Australasianarum, 2, 1930, p. 504 (Guam); Hand-list Japanese Birds, rev., 1932, p. 176 (Guam).
Myiagra oceanica freycineti Mayr, Birds Southwest Pacific, 1945, p. 296 (Guam).
Myiagra oceanica Strophlet, Auk, 1946, p. 539. (Guam).
Geographic range.—Micronesia: Mariana Islands—Guam.
Characters.—Adult male: A small flycatcher with head and neck near "dark delft blue" with a metallic luster; lores and anterior forehead ashy-gray, more bluish and darker on auriculars and sides of neck than on lores; back and upper wing-coverts near "green-blue slate" but darker and with metallic luster less apparent than on head; rump grayer than back; chin and throat white; breast light "cinnamon," fading to pale buff and white on abdomen, sides, and under tail-coverts; tibia smoky-gray, tips of feathers paler; wings dark brown edged with light bluish-gray; tail bluish-slate, especially middle rectrices, tips of tail feathers edged with white; bill and feet black; iris dark brown.
Adult female: Resembles adult female of M. o. erythrops, but crown and neck near "deep Payne's gray," auriculars grayer than neck; anterior forehead and lores buffy and tinged with cinnamon; back browner than lores with upper wing-coverts and scapulars edged with slightly lighter brown; rump resembles crown but grayer; underparts paler than those of M. o. erythrops, especially chin and throat; tibia more brownish.
Immature male: Resembles adult male, but back more brown and less blue-green, lacking luster; anterior forehead more rufous; scapulars, upper wingcoverts, and wings edged with light brown; underparts variable but generally more buffy than those of adult.
Immature female: Resembles adult female, but more brown and less blue on head and back; underparts more buffy; base of bill paler.