Corumbataia britskii is a species of armored catfish endemic to Brazil where it is found in small tributaries of the Sucuriú River, upper Paraná River Basin in the state of Mato Grosso do Sul. This species was found in deforested areas in moderate to fast current streams. It associates with aquatic macrophytes or the submerged portion of marginal vegetation. In its gut contents were found filamentous blue-green algae, chlorophytes, diatoms and bark. This species grows to a length of SL. The fish is named in honor of Heraldo A. Britski of the Universidade de São Paulo, for his many contributions to the understanding of Hypoptopomatinae catfishes of South America. References Otothyrinae Fish of South America Fish of Brazil Endemic fauna of Brazil Taxa named by Katianne Mara Ferreira Taxa named by Alexandre Cunha Ribeiro Fish described in 2007