Parotocinclus yaka
Parotocinclus yaka is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in Brazil, in tributaries of the Tiquié River, which is a tributary of the Vaupés River in the Amazon River basin. The species reaches at least 3.01 cm (1.2 inches) SL. It was described in 2018 by P. Lehmann A., F. C. T. Lima, and R. E. Reis on the basis of distinctive patterning and cheek morphology. References 

Otothyrinae
Fish of Brazil
Fish described in 2018