. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. BAIRDIELLA CHRYSURA AND ANCHOVIA MITCHILU. 19 During the eariy summer larvae of Anchovia mitchiUi and Aiichovia brownii were fre- quently taken together. In this stage the two species are very similar and might readily be confused, the larvae of the latter, however, being somewhat the longer and compara- tively more slender. The vent is also located correspondingly farther posteriorly in the latter than in the former. As soon as the dorsal and anal fins have become fully differen- tiated, the young of either species may be recogni
. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. BAIRDIELLA CHRYSURA AND ANCHOVIA MITCHILU. 19 During the eariy summer larvae of Anchovia mitchiUi and Aiichovia brownii were fre- quently taken together. In this stage the two species are very similar and might readily be confused, the larvae of the latter, however, being somewhat the longer and compara- tively more slender. The vent is also located correspondingly farther posteriorly in the latter than in the former. As soon as the dorsal and anal fins have become fully differen- tiated, the young of either species may be recognized by the character of the anal fin. The number of anal fin rays in Anchovia brownii usually does not exceed 20. In Anchovia â mitchilli the anal fin rays number 25 to 28. In the latter species the anal fin also is longer and terminates less abruptly and nearer the base of the caudal fin than in the former. â¢â %â - K^ - ' '-'^"'""""^I'l^l'I'IH'I'lUnilJIinniinnnnl^^P??^ -:"N Fig. 43.âLarval fish 75 mm. in length. ^^â N^â* ^^-^_J?^S!S-^â . .T. Fig. 44.âLarval fish 10 mm. in Fig. 46.âAdult fish 7 cm. in length. ANCHOVU MITCHILLI. Figure 46 illustrates an adult fish. The adult of this species does not differ markedly inform and appearance from the adult of Anchovia brownii. The average length of the body is somewhat greater and its relative depth is somewhat less in the latter, while the silvery lateral band of .4. mitchilli is narrower and less distinct than in brownii. More distinctive characters are the anal fin, as indicated above, and the position of the vent. In the larvse of both species the vent is located opposite the middle of the dorsal fin or farther posteriorly. In the adult of Atichovia mitchilli the vent is located opposite the origin of the dorsal fin, while in the adult of Anchovia brownii the vent is located approximately opposite the middle of the dorsal Please note that these images are extracted from
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