Age determination and growth for two corvinas, coliamarilla (Cynoscion stoltzmanni) and aguada (Cynoscion quamipinnis), was studied. Validation of age determination on otoliths was carried out by the analysis of length-frequency analysis using the method of Macdonald and Pitcher (1979) and the program MIX. Both species grow 49% of their estimated L.'s in year one. The estimated L.*for coliamarilla is 96.67 cm and for aguada is 55.65 cm, both over a period of about 7 years. Within reader comparison shows that repeatability of age readings decreases as age increases but the precision of the age readings is high in both cases. This paper develops methods for direct age determination by reading whole otoliths and presents a method of indirect validation of i-esults, of: the two selected species. The resulting von Bertalanffy growth parameters are estimated and are compared to the previous studies.