Sediment samples were collected from the eastern north coast of the Egyptian Mediterranean Sea, from El-Tina Bay, north Sinai, 31º 33´ 30″ N, 32º 45´22″ E, using Van Veen grab sampler, during June 2008. Twelve polychaete
species were reported; eleven of them are new records for the first time in the Egyptian water. They affiliated to two families; Magelonidae and Maldanidae,including eight genera; Magelona, Praxillella, Micromaldane, Axiothella,
Clymenura, Lumbriclymene, Johnstonia and Euclymene, and one species(Euclymene lumbircoides), that was recorded before by Fauvel (1937) in Alexandria.. A full description is provided for each with more details of the
arrangement of setae as well as geographic distribution of the recorded species were discussed.