Abstract
The electrophoretic patterns of muscle proteins, LDH and MDH of 11 species of platycephalid fishes collected from Japan were described and discussed in connection with the phylogenetic relationships among these species.The specific and generic differences were recognized in the electropherograms of this group.The phylogenetic relationships derived from the comparative morphology by Matsubara and Ochiai (1955) were fundamentally supported by the facts of the electrophoretic analyses made here.A remarkable discrepancy was found in the phylogenetic position of genus Rogadius.This genus well accorded with genus Suggrundus in the electrophoretic patterns of muscle proteins, LDH and MDH, though rather nearer to genus Onigocia than to Suggrundus in morphological characters.Two sibling species of Platycephalus, P.indicus and P.sp.usually called“Yoshinogochi”are distinguished from each other by the electropherogram of muscle proteins.
