Original description as Petrotilapia nigra:
- Marsh, Alan C. 1983. "A taxonomic study of the fish genus Petrotilapia (Pisces: Cichlidae) from Lake Malawi". Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology. pp. 1-14 (crc00157) (abstract)
Conservation: Petrotilapia nigra is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (VU) vulnerable (2006).