_Specimens examined._--Total number, 5 (2 males, 3 females), as follows: Mariana Islands, AMNH--Guam, 4 (Dec. 2-4); Caroline Islands, USNM, 1 (Aug. 21). _Remarks._--Stickney (1943:8, 9) summarizes the available information concerning the Sanderling in Oceania. The bird may be classed as a regular visitor in eastern Micronesia; the most western record is from Ulithi in the western Carolines. It has been recorded also at Guam and Jaluit. The NAMRU2 party secured one Sanderling from a flock of approximately thirty birds containing this species and _Charadrius mongolus stegmanni_ at Pau Island, Ulithi Atoll, on August 21, 1945. =Calidris tenuirostris= (Horsfield) Asiatic Knot _Totanus tenuirostris_ Horsfield, Trans. Linn. Soc. London, 13, pt. 1, 1821, p. 192. (Type locality, Java.) _Calidris tenuirostris_ Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 54 (Peleliu). _Geographic range._--Breeds in northeastern Siberia. Winters from India east to Malaysia and Australia. In Micronesia: Palau Islands--Peleliu. _Specimens examined._--Four males from Palau Islands, USNM--Peleliu (Sept. 16). _Remarks._--The Asiatic Knot was observed and obtained by the NAMRU2 party at Peleliu in September, 1945. Flocks containing fifteen to twenty birds were noted at the tidal flats of Akarakoro Point on September 8 and 16. The birds appeared to remain apart from other shore birds in this area. =Erolia minuta ruficollis= (Pallas) Little Stint _Trynga ruficollis_ Pallas, Reise versch. Prov. Russ. Reichs, 3, 1776, p. 700. (Type locality, "Circa lacus salsos Dauriae campestris" = Kulussutai, southern Transbaikalia.) _Tringa minuta_ Hartlaub and Finsch, Proc. Zool. Soc. London, 1868, pp. 8, 118 (Pelew); Gray, Hand-list Birds, pt. 3, 1871, p. 50 (Pelew); Hartlaub and Finsch, Proc. Zool. Soc. London, 1872, pp. 89, 106 (Pelew); Finsch, Journ. Mus. Godeffroy, 8, 1875, pp. 5, 36 (Palau). _Tringa albescens_ Salvadori, Ornith. Papuasia, 3, 1882, p. 316 (Pelew); Wiglesworth, Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 64 (Pelew). _Limonites minuta_ Takatsukasa and Kudora, Tori, 1, 1915, p. 62 (Pelew). _Pisobia ruficollis_ Ridgway, Bull. U. S. Nat. Mus., 50, pt. 8, 1919, p. 290 (Pelew). _Pisobia minuta ruficollis_ Kuroda, in Momiyama, Birds Micronesia, 1922, p. 48 (Palau, Ulithi); Hand-list Japanese Birds, rev., 1932, p. 192 (Palau, Ulithi). _Calidris ruficollis ruficollis_ Hand-list Japanese Birds, 3d ed., 1942, p. 215 (Palau, Ulithi). _Calidris minuta ruficollis_ Mayr, Birds Southwest Pacific, 1945, p. 45 (Micronesia); Baker, Smithson. Misc. Coll., vol. 107, no. 15, 1948, p. 54 (Rota, Peleliu).