Descrizione originale come Petrotilapia palingnathos:
ZooBank:9D34BF6F-6A81-46FD-8376-5E913AF05CF6.
- Lundeba, Mary & J.R. Stauffer Jr., A. Konings. 2011. "Five new species of the genus Petrotilapia (Teleostei: Cichlidae), from Lake Malawi, Africa". Ichthyological Explorations of Freshwaters. 22(2):149-168 (crc03458) (riassunto)
Conservazione: Petrotilapia palingnathos è valutata dalle organizzazioni internazionali di salvaguardia delle specie a rischio come (LC) basso rischio (2018). . Since it lives in close contact with rocks it is unlikely many are caught in fisherman's seines although it would be trapped in gill nets if they were set close to the rocks. In the short term there appears to be no particular threat to the existence of this species.