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| Sound produced | yes, active sound production |
| Type of sound produced | knocks, thumps (& croaks) |
| Sound production organ | unspecified but probably swim bladder with drumming muscles in males only & pharyngeal teeth in close proximity to swim bladder in both sexes |
| Sound mechanism | unspecified, but probably similar to Cynoscion regalis: males only: vibration of swim bladder by contraction of associated "drumming" muscles, high-pitched clucking in both sexes produced by stridulation of pharyngeal teeth amplified by swim bladder |
| Behavioural context | under duress (manual & electric stimulation) |
| Reference | Fish, M.P. and W.H. Mowbray, 1970 |
| Remark | no sex data available, but lack of croaking in recording suggests female specimen only, since drumming muscles are limited to males in morphologically related sciaenids.Recorded with highpass filter: 60 Hz. Recording amplifed by 6 dB |