Original description as Haplochromis electra:
- Burgess, Warren. 1979. "Studies on the family Cichlidae: 9. Haplochromis electra a new species of cichlid from the waters around Likoma Island, Lake Malawi". Tropical Fish Hobbyist Magazine. 27 (8); pp. 91-94 (crc00161)
Conservation: Placidochromis electra is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2018). P. electra has a wide distribution and although it sometimes ends up in beach seines it usually lives too deep to be within reach of such nets. Sandy shores are usually gradually shelving to greater depths and areas 5-7 meters deep are usually so far off shore that even the longest beach seines have no access to P. electra.