Katria
Katria is a genus of freshwater fish in the cichlid family. It contains the single species Katria katria, a vulnerable species from the Mangoro and Nosivolo Rivers in east-central Madagascar, that was formerly included in the genus "Ptychochromoides". The only other monotypic cichlid genus in Madagascar is "Oxylapia", and it is restricted to the same region as "Katria". In 2010, the Nosivolo River was designated as a Ramsar Site. The "Katria" reaches about in length.