This work is based on the collection of Polychaeta of the family Polynoidae made by R/V "Vitiaz" during 57th cruise in deep-sea trenches of the western part of the Pacific. 7 species of 7 geny [sic = genera?] were found; new genus with new species Bathymariana zebra and new species Macellicephala alia is established. The majority of species are specific to the ultraabyssal zone and have wide range of biogeographical distribution in the deep-sea trenches of the western and northwestern parts of the Pacific.