The growth rate of Branchiostegus argentata (C. & V.) taken from East China Sea was inferior to that of B. japonicus (Houttuyu) and B. auratus (Kishinouye) from the same sea. Between the latter two from East China Sea and from the Pacific coast of central Japan no difference in growth rate to those taken form the seas just mentioned. Of th samples of the both species taken from East China Sea, 60% of the total catch of these forms were 2- or 3- year-olds.