Gattungsbeschreibung: 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
Typusart: Ptychochromoides katria REINTHAL & STIASSNY, 1997
Beschriebene Arten:
Katria katria (REINTHAL & STIASSNY, 1997)