New distributional records of forty-five fish species off the Pacific coast of Tohoku District, northern Japan are reported, based on specimens trawled by the R/V Wakataka-maru (Japan Fisheries Research and Education Agency) during surveys in autumn of each year from 1995 to 2019. The records include northern distribution range extensions of 19 species, distribution gaps filled for 17 species, and northern and southern limits along the Pacific coast of Japan for eight and one species, respectively. Twenty-seven species were recorded off Tohoku District for the first time. In addition, taxonomic notes for each species, including some meristic and morphometric data from the collected specimens, are also provided.
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