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| No. | Valid Name | Author | English Name |
| 1. | Gnathonemus barbatus | Poll, 1967 | |
| 2. | Gnathonemus echidnorhynchus | Pellegrin, 1924 | |
| 3. | Gnathonemus longibarbis | (Hilgendorf, 1888) | Longnose stonebasher |
| 4. | Gnathonemus petersii | (Günther, 1862) | Elephantnose fish |