Dolerocypria mukaishimensis is a relatively common species found in brackish water habitats around Japan (Okubo 1980; Nakao and Tsukagoshi 2002; Smith and Kamiya 2003), Korea (Lee et al. 2000; Karanovic and Lee 2012) and China (Dai et al. 1995). Karanovic and Lee (2012) figured a Korean specimen of D. mukaishimensis with three setae on the first segment of the sixth limb. Japanese specimens have two setae on this segment (Okubo 1980; Nakao and Tsukagoshi 2002), and all Korean material checked by us also has two setae, suggesting that Karanovic and Lee’ s (2012) specimen is aberrant. This species was found in seven brackish water localities (8, 18, 19, 20, 23, 27 and 30) during our surveys.