Abstract
Three taxa of the genus Odontobutis (Gobiidae), O.obscura obscura from Japan, and O.o. interrupta and O.platycephala from Korea were analyzed electrophoretically at 21 isozyme coding loci. They were very distantly related genetically (Nei's genetic distance=1.053-1.230), alleles of 9 loci being displaced and diagnostic of the three taxa. Accordingly, the two subspecies of O.obscura were judged to be distinct species, for which the names O.obscura (for O.o. obscura) and O.interrupta (for O.o. interrupta) are proposed.
