| Citation | Hanssens, M., 2004, The deep-water Placidochromis species.. p. 104-197. In J. Snoeks (ed.) The cichlid diversity of Lake Malawi/Nyasa/Niassa: identification, distribution and taxonomy. Cichlid Press, El Paso, USA. |
| Ref. | 55898 Hanssens, M., 2004 |
| Page | 115;fig.3 |
| Named Used as Valid | Placidochromis longus |
| Comment | Original species description. |
| Locality | 'Lukoma Bay (Tanzania)'. |
| Distribution | Lukoma Bay, Lake Malawi, Tanzania. |
| Quote |