| Citation | Kottelat, M., 1989. On the validity of Phractocephalus Agassiz, 1829, vs. Pirarara Agassiz, 1829. Spixiana 12(3):321. |
| DOI / ISBN | |
| PDF/Reference URL | |
| Ref. No. | 41454 |
| Language | English |
| Usage | not used yet |
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