Wecomedon Jarrett &amp;amp; Bousfield, 1982, a replacement name for the amphipod genus Psammonyx Bousfield, 1973 (Crustacea, Amphipoda, Tryphosidae), preoccupied by Psammonyx Döderlein, 1892 (Foraminifera, Astrorhizida, Ammovolummidae)
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