Megapodius laperouse Hartert, Novit. Zool., 5, 1898, p. 61 (Saipan, Tinian, Rota, Guam).
Megapodius laperousei Finsch, Sammlung wissensch. Vorträge, 14 ser., 1900, p. 660 (Marianen); Prowazek, Die deutschen Marianen, 1913, p. 87 (Marianen).
Megapodius lapeyrouse Matschie, Journ. f. Ornith., 1901, p. 113 (Guam, Saipan).
M[egapodius] lapeyrousei Reichenow (part), Die Vögel, 1, 1913, p. 273 (Mariannen).
Megapodius laperousei laperousei Kuroda, in Momiyama, Birds Micronesia, 1922, p. 40 (Guam, Saipan, Rota, Tinian, Pagan, Agrigan).
Megapodius lapérouse lapérouse Mathews, Syst. Avium Australasianarum, 1, 1927, p. 16 (Marianas); Takatsukasa, Birds Nippon, vol. 1, pt. 1, 1932, p. 6, pl. 4, 5 (Marianne); Yamashina, Tori, 7, 1932, p. 411 (Pagan Agrigan); Hand-list Japanese Birds, rev., 1932, p. 198 (Marianas); Peters, Check-list Birds World, 2, 1934, p. 7 (Marianne Islands); Yamashina, Tori, 10, 1940, p. 679 (Assongsong); Amadon, Amer. Mus. Novit., no. 1175, 1942, p. 9 (Asuncion, Saipan, Guam); Mayr, Birds Southwest Pacific, 1945, p. 286 (Marianas).
Megapodius laperousi laperousi Bryan, Guam Rec., vol. 13, no. 2, 1936, p. 15 (Guam).
Megapodius la pérouse la pérouse Hand-list Japanese Birds, 3d ed., 1942, p. 223 (Assongsong, Agrigan, Pagan, Almagan, Saipan, Tinian, Agiguan, Rota, Guam).
Geographic range.—Micronesia: Mariana Islands—Asuncion, Agrihan, Pagan, Almagan, Saipan, Tinian, Agiguan, Rota, Guam. Probably extinct on Saipan, Tinian, Rota, Guam.
Characters.—Adult: Resembles M. l. senex, but crown slightly darker gray; back, wing-coverts and scapulars more heavily washed with olivaceous-brown; mantle less slate; underparts paler and more brownish, especially belly. (Note—The specimens examined from the Marianas are old and rather worn in appearance.)