| Reference no. | Description | Year | Name Used | Page |
|---|---|---|---|---|
| 91772 | Lavoué, S., 2012. Petrocephalus Marcusen, 1854 (Osteoglossomorpha: Mormyridae) of the Bangweulu-Mweru ecoregion (Luapula River system, Congo basin), with the description of a new species. J. Nat. Hist. 46(35-36):2159-2178. | 2012 | Petrocephalus frieli | 2170;fig.3 |
| 95585 | Van Steenberge, M., E. Vreven and J. Snoeks, 2014. The fishes of the Upper Luapula area (Congo basin): a fauna of mixed origin. Ichthyol. Explor. Freshwat. 24(4):329-345. | 2014 | Petrocephalus frieli | 334 |
| 105471 | eElurikkus, 2015. eElurikkus koondab ühte portaali Eesti eluslooduse andmed. http://elurikkus.ut.ee/ | 2015 | Petrocephalus frieli | --> |
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