Original description as Schwetzochromis luongoensis:
ZooBank:8769C527-96CB-4720-8DC0-BDE88600F034.
- Greenwood, Peter Humphry & Sven 0. Kullander. 1994. "A taxonomic review and redescription of Tilapia polyacanthus and T. stormsi (Teleostei: Cichlidae) with descriptions of two new Schwetzochromis species from the Upper Zaire River drainage". Ichthyological Explorations of Freshwaters. 5(2):161-180 (crc01580)
Conservation: Orthochromis luongoensis is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (EN) endangered (2010).