Hypostomus levis
Hypostomus levis is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the Madeira River basin. The species reaches 18.8 cm (7.4 inches) SL and is believed to be a facultative air-breather. It reportedly inhabits high-altitude environments. References 

levis
Freshwater fish of Brazil
Fish described in 1924