Pseudotocinclus parahybae is a species of armored catfish endemic to Brazil, where it is known only from the type locality, a tributary of the ribeirão Grande, rio Paraíba do Sul basin. It is a medium-size creek, 0.5–1.5 metres (1.6–4.9 ft) deep and 5.0 m (16.4 ft) wide at approximately 800 m (2600 ft) above sea level, on the slope of Serra da Mantiqueira, with very clear, well oxygenated, and fast flowing water, running mainly on stone beds. References Otothyrinae Fish of South America Fish of Brazil Endemic fauna of Brazil Taxa named by Adriana Kazue Takako Taxa named by Claudio Oliveira (scientist) Taxa named by Osvaldo Takeshi Oyakawa Fish described in 2005