| Citation | Boulenger, G.A., 1898. Specimens of Polypterus lapradii Stdr., from the Lower Congo, provided with much developed external opercular gills as first described by Steindachner. Proc. Zool. Soc. Lond. 1898:493. |
| DOI | http://dx.doi.org/ |
| Paper URL | |
| Address | |
| Ref. No. | 45648 |
| Language | English |
| Usage | used completely |
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