On the Rings formed on Scale, Vertebral Centrum and Otolith of the Same Individual Fish

With the scale and otolith of Scombrops chilodipteroides (see this Bulletin 8 (3), 1939, 141-142), and with centrum and otolith of Theragra chalcogramma (PALLAS) (see this Bull. 6 (6), 1938, 296-298), the results of determination of the number of annual rings are compiled in Tables 1 to 8. New annual rings seem to be formed one and half months later on centrum than on otolith, while the spawning, as inferred from gonad examinations, takes place one and half months later than the annual rings are formed on centrum (Fig. 3).