The present work describes myxozoan parasite found in the skin of cultured snakehead, Channa argus fingerings (total length, 5.5~7.2 cm) from Busan, Korea. Nature spores and plasmodia were found in the skin mucus of infected fishes. In fresh state, the total length of the spore was $27.96{pm}2.50{mu}m$. The size of spore body was $14.16{pm}1.78{mu}m{ imes}4.88{pm}0.61{mu}m$. The polar capsules were pyriform and the size was $5.57{pm}0.66{mu}m{ imes}1.36{pm}0.33{mu}m$. This is the first report of Henneguya sp. from cultured fish species in Korea, and further studies are necessary for definitive identification.