Original description:
- Stiassny, Melanie & John S. Sparks. 2006. "Phylogeny and Taxonomic Revision of the Endemic Malagasy Genus Ptychochromis (Teleostei: Cichlidae), with the Description of Five New Species and a Diagnosis for Katria, New Genus". American Museum Novitates. (3535):1–55 (crc01327) (abstract)
Type species: Ptychochromoides katria Reinthal & Stiassny, 1997 (original designation).