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South America: Trinidad and Venezuela to the Amazon delta in Brazil. 南美洲: 在巴西的千里達與委內瑞拉到亞馬遜河三角州。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm13.0 range ? - ? cm Max length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 35237); common length : 14.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217); 最大體重: 400.00 g (Ref. 35237)
Eye divided into aerial and aquatic parts. Fewer than 80 scales in row above lateral line (Ref. 26938). Body shape (shape guide): elongated. 眼分開成空中而水生的部份了。 側線上面的鱗片列的少於 80個鱗片.(參考文獻 26938)
Mainly found in freshwater, sometimes in brackish parts of lagoons and mangrove coastlines (Ref. 26938). Moves in schools (Ref. 26938). Feeds on insects (Ref. 7020), other invertebrates and diatoms living on the mud, and small fishes (Ref. 35237). Can remain on mud bottom exposed to air during low tide (Ref. 26938). Used in eye research (Ref. 4537). Often travels in schools (Ref. 26938).
Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez, 1992. Fichas FAO de identificación de especies para los fines de la pesca. Guía de campo de las especies comerciales marinas y de aquas salobres de la costa septentrional de Sur América. FAO, Rome. 513 p. Preparado con el financiamento de la Comisión de Comunidades Europeas y de NORAD. (Ref. 5217)
