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Sound produced | yes, active sound production |
Type of sound produced | knocks |
Sound production organ | teeth & swim bladder (similar to Eucinostomus gula) |
Sound mechanism | stridulation of teeth, probably amplified by swim bladder (similar to Eucinostomus gula) |
Behavioural context | only under duress (electric stimulation), very weak |
Reference | Fish, M.P. and W.H. Mowbray, 1970 |
Remark | recordings made from single specimen in very poor condition, recorded with bandpass filter: 75 -1200 Hz, recording amplified by 3 dB |