In the article “Genetic Structure of Korean Wild Populations of the Medaka Oryzias latipes Inferred from Allozymic Variation” by Yusuke Takehana, Sang-Rin Jeon and Mitsuru Sakaizumi, which appeared on pages 977–988 of volume 21 No. 9 (2004), errors were found in Figure 5 on page 982. The correct version of Figure 5 is printed here.