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Gnathonemus barbatus Poll, 1967
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Gnathonemus brevicaudatus Pellegrin, 1919
- Gnathonemus histrio Fowler, 1936; (synonym)
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Gnathonemus echidnorhynchus Pellegrin, 1924
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Gnathonemus longibarbis Gosse, 1984
- Mormyrus longibarbis Hilgendorf, 1888; (valid as)
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?Gnathonemus macropthalmus Pellegrin, 1928
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Gnathonemus petersii Gill, 1863
- Mormyrus petersii Gìnther, 1862; (valid as)
- Gnathonemus petersii Gosse, 1984