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| Sound produced | yes, active sound production |
| Type of sound produced | escape sounds, thumps followed by "hornlike" burst |
| Sound production organ | swim bladder with associated muscles & pharyngeal teeth |
| Sound mechanism | unspecified |
| Behavioural context | under duress (manual & electric stimulation) |
| Reference | Fish, M.P. and W.H. Mowbray, 1970 |
| Remark |