Hypostomus labyrinthus de Oliveira, Ribeiro, Canto & Zawadzki, 2020: 491, fig. 1.

Paratype: 1 lot, 1 specimen —NUP 22302, 1, 160.4 mm SL: Brazil, Pará, Rurópolis, rio Água Boa, tributary to rio Cupari, rio Tapajós basin, 4°6’9.5”S, 55°21’18.9”W, F. Ribeiro, C. Oliveira & J. Souza, 12 Jun 2014 .