| Citation | Boulenger, G.A., 1909, Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Volume I.. Printed by order of the Trustees, London. 373 p. |
| Ref. | 1878 Boulenger, G.A., 1909 |
| Page | 147 |
| Named Used as Valid | Notopterus afer |
| Comment | Only the specimen from Ibali belongs to P. congoensis; see also Ref. 7431. |
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