Hypostomus perdido Zawadzki, Tencatt & Froehlich, 2014: 99, fig. 1.

Paratypes: 3 lots, 29 specimens —NUP 12143, 10, 136.4– 166.3 mm SL; NUP 12144, 18, 109.1– 152.4 mm SL; NUP 14406, 1 c&s, 124.0 mm SL: Brazil, Mato Grosso do Sul, Bodoquena, rio Perdido, rio Paraguai basin, 21°17’09”S, 56°41’47”W, O. Froehlich, 8 Sep 2005 .