Two specimens of Sardinella lemuru Bleeker, 1853 were collected for the first time from the adjacent waters of Cheju Island, Korea, in March 1997. S. lemuru is very similar to S. zunasi (Bleeker, 1854) in external features but differs in the number of anal fin rays. While S. lemuru is difficult to differentiate by color from Clupea pallasii valenciennes, 1847 the two are easily differentiated by their gill raker counts. We propose "Bali-paen-dang-i" as a new Korean name for S. lemuru.