_Tringa acuminata_ Hartlaub and Finsch, Proc. Zool. Soc. London, 1868, pp. 8, 118 (Pelew); _idem_, Proc. Zool. Soc. London, 1872, pp. 89, 106 (Pelew); Finsch, Journ. Mus. Godeffroy, 8, 1875, pp. 5, 35 (Palau); Salvadori, Ornith. Papuasia, 3, 1882, p. 314 (Pelew); Wiglesworth, Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 64 (Pelew); Hartert, Novit. Zool., 5, 1898, p. 65 (Marianne); Seale, Occ. Papers Bernice P. Bishop Mus., 1, 1901, p. 33 (Guam); Safford, Osprey, 1902, p. 70 (Marianas); _idem_, The Plant World, 7, 1904, p. 268 (Guam). _Heteropygia acuminata_ Sharpe, Cat. Birds British Mus., 24, 1896, p. 566 (Pelew); Hartert, Novit. Zool., 7, 1900, p. 8 (Ruk); Takatsukasa and Kuroda, Tori, 1, 1915, p. 62 (Marianas, Ruk, Pelew); Kuroda, in Momiyama, Birds Micronesia, 1922, p. 48 (Pagan, Pelew, Ruk). _Tringa maculata_ var. _acuminata_ Oustalet, Nouv. Arch. Mus. Hist. Nat. Paris, (3) 8, 1896, p. 44 (Pagan, Palaos). _Pisobia acuminata_ Ridgway, Bull. U. S. Nat. Mus., 50, pt. 8, 1919, p. 276 (Caroline Islands). _Erolia acuminata_ Hartert, Vögel pal. Fauna, 11-12, 1920, p. 1586 (Palau, Karolinen); Bryan, Guam Rec., vol. 13, no. 2, 1936, p. 24 (Guam). _Pisobia acuminatus_ Hand-list Japanese Birds, rev., 1932, p. 192 (Ponapé, Truk, Pagan, Jaluit, Koror). _Calidris acuminata_ Hand-list Japanese Birds, 3d ed., 1942, p. 215 (Pagan, Jaluit, Koror, Truk, Ponapé); Mayr, Birds Southwest Pacific, 1945, p. 45 (Micronesia); Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 54 (Guam, Angaur). _Geographic range._--Breeds in northeastern Siberia. Winters from the Malay Archipelago and Australia to the Southwest Pacific. In Micronesia: Mariana Islands--Guam, Pagan; Palau Islands--Angaur; Caroline Islands--Truk, Ponapé; Marshall Islands--Jaluit. _Specimens examined._--Total number, 4 (2 males, 2 females), as follows: Mariana Islands, USNM--Guam, 1 (Sept. 17); Palau Islands, USNM--Angaur, 3 (Sept. 21). _Remarks._--The Sharp-tailed Sandpiper is a regular visitor to western Micronesia and an uncommon visitor to eastern Micronesia. It was first recorded from the Palau Islands in 1868, where the bird was taken by Tetens, Heinsohn, and Kubary. In 1896 and 1898, records of this bird in the Mariana and Caroline islands were published by Oustalet and Hartert. The NAMRU2 party obtained one specimen at Guam on September 17 and three at Angaur on September 21. At Angaur several birds of this species were seen at fresh water ponds in company with _Erolia minuta ruficollis_, _Limicola falcinellus sibirica_, _Tringa glareola_, and other shore birds. =Erolia ferruginea= (Pontoppidan) Curlew Sandpiper _Tringa ferrugineus_ Pontoppidan, Danske Atlas, 1, 1763, p. 624. (No type locality = Denmark.)