Occurrences of fish larvae and juveniles taken by beach seine at the Ilha Anchieta (Lat. 23º32'S; Long. 45º05'W) during the period from August 1973 to July 1974, were studied. The predominant species was Eucinostomus sp. (Gerreidae) which occurred more abundantly during summer season. Other species which occurred during hot summer season were: Albula vulpes (Linnaeus, 1758) (Albulidae), Sardinella brasiliensis (Steindachner, 1879), Harengula Jaguana Poey, 1865 (Clupeidae), Trachinotus carolinus (Linnaeus, 1766), Trachinotus falcatus (Linnaeus, 1758) (Carangidae), and Menticirrhus americanus (Linnaeus, 1758) (Sciaenidae). Menticirrhus littoralis (Holbrook, 1856), occurred all the year-round. Anchoa lyolepis (Evermann & Marsh, 1902) (Engraulidae) occurred more abundantly during winter and Coleotropis sp. (Atherinidae) during autumn. Morphological description of larvae and juveniles of Umbrina coroides Cuvier, 1830 was given.