Many members of xanthid crabs have the black coloured fingers and are found easily in the intertidal or subtidal zone. Three xanthids, $Danielea$ $noelensis$ (Ward, 1934), $Etisus$ $anaglyptus$ H. Milne Edwards, 1834, and $Gaillardiellus$ $rueppelli$ (Krauss, 1843), are newly reported from Korean waters as a result of continuous taxonomic studies on crabs. Of these, the present specimen of $D.$ $noelensis$ has rather projecting angle on the antero-external border of the merus of the third maxilliped differed from that of the original description. The genus $Danielea$ Ng and Clark, 2003 and the genus $Etisus$ H. Milne Edwards, 1834 are also reported first time from Korean fauna. Their descriptions are provided with illustrations. Korean Xanthoidea now consists of 28 species belonging to 24 genera.