Hypostomus yaku Martins, Langeani & Zawadzki (2014) .

Holotype: DZSJRP 15735, 70.8 mm SL, tributary to rio Piracanjuba, near water treatment station, rio Quente basin, rio Paranaíba drainage, Goiás, Brazil, el. 618 m, 17°46’32”S, 48°45’56”W, cols. F. Langeani, F.R. Carvalho & F.O. Martins, 7 Mar 2012 (Fig. 9).

Paratypes: 3 lots, 94 specimens; DZSJRP 15743, 3, 30.2–48.7 mm SL, rio Quente near the bridge, at Rio Quente Resort, in the road to Pousada Hotel, Goiás, Brazil, el. 596 m, 17°46’28”S, 48°45’13”W, cols. F. Langeani, F.R. Carvalho, F.O. Martins, 8 March 2012; DZSJRP 15747, 12, 12.4–59.7 mm SL, rio Quente, under the bridge at Esplanada district, Goiás, Brazil, el. 622 m, 17°46’22”S, 48°45’23”W, col. F. Langeani, F.R. Carvalho & F.O. Martins, 8 March 2012; and DZSJRP 16421, 79 (2 c&s, tissue sample of 7 specimens), 72 in the original description, 10.7–60.7 mm SL, collected with the holotype .

Remarks: The discrepancy between the number of specimens (paratypes) herein listed and those mentioned in the original description may be due to a counting error in the original description.