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Head upturned; mouth directed upward. small scales; no barbels; belly
with sharp keel from throat to anus; mouth cleft almost vertical. Body
strongly compressed; dorsal profile flat except concave nape. Pectoral
fins elongated. Base of caudal fin with black blotch. Attains 50 cm.
ระบบนิเวศ :
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Carnivourous, fishes, insect in juveniles. Locally common in Cambodia
to Delta, rare elswhere. Habitat lost and overfishing.