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Click here to download the sound file.| 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 |