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|Sound produced||yes, active sound production|
|Type of sound produced||knocks|
|Sound production organ||swim bladder & possibly teeth|
|Sound mechanism||vibration of swim bladder & possibly stridulation of teeth|
|Behavioural context||only under duress (electric stimulation)|
|Reference||Fish, M.P. and W.H. Mowbray, 1970|
|Remark||Genus differs from Eucinostomus in having a swim bladder free from second interhaemal. Recorded with bandpass filter: 75 - 1200 Hz|