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BiologyInhabits open water and vegetated areas of lakes, lagoons and irrigation canals. Females grow larger and are more frequently caught than males. Chiefly insectivorous, feeding on the bottom and in vegetation (Ref. 28714). Affinities: P. ansorgii, differ only by the small eyes, the thick caudal peduncle, numerous teeth on lower jaw and the uniform silvery color (P. ansorgii has a spot on the dorsal fin).