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| airsack catfish (Heteropneustidae); sack-gill catfish (Heteropneustidae) | |||
| airsac catfishes (Heteropneustidae, Saccobranchidae); sack-gill catfishes (Heteropneustidae, Saccobranchidae) | |||
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| sack-gill catfish (Heteropneustes) | |||
| мешкожаберные сомы: 4 phrases in 2 subjects |
| Biology | 1 |
| Ichthyology | 3 |