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| Sound produced | yes, active sound production |
| Type of sound produced | croaks |
| Sound production organ | teeth & swim bladder |
| Sound mechanism | stridulation of well-toothed mouth reinforced by large swim bladder |
| Behavioural context | spontaneous, sustained croaking during capture in net, sounds easily stimulated with mild manual stimulation (continued production even out of water) |
| Reference | Fish, M.P. and W.H. Mowbray, 1970 |
| Remark |