Review of the hagfishes (Myxinidae, Myxiniformes) of the northwestern Pacific Ocean, with descriptions of three new species, Eptatretus fernholmi, Paramyxine moki, and P. walkeri. Zoological Studies 43(1): 51-73. Sixteen known species of Asian hagfishes are reviewed and 3 new species are described: Eptatretus fernholmi, Paramyxine moki, and P. walkeri. The study area includes the coastal waters of Japan, South Korea, Taiwan, China, and Luzon Island, the Philippines. We present keys to the identification of genera and species, and discuss various characters useful in hagfish taxonomy.