Original description as Ptychochromoides katria:
- Reinthal, Peter N & M.L.J. Stiassny. 1997. "Revision of the Madagascan genus Ptychochromoides (Teleostei; Cichlidae), with description of a new species". Ichthyological Explorations of Freshwaters. 7 (3/4); pp. 353-368 (crc00327)
Conservation: Katria katria is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (EN) endangered (2016).