Knodus rufford Deprá, Ota, Vitorino Júnior & Ferreira, 2021: 6, fig. 2.

Holotype (Fig. 4): NUP 22661, 35.4 mm SL: Brazil, Goiás, Pirenópolis, ribeirão Dois Irmãos, tributary of rio do Peixe, tributary to the rio das Almas, tributary of rio Maranhão, tributary of rio Tocantins, 15°42’50”S, 49°2’39”W, elevation 713 m, G.C. Deprá & O. Vitorino Júnior, 12 Dec 2016.

Paratypes: 2 lots, 7 specimens —NUP 22660, 3, 28.2–36.8 mm SL: collected with holotype. NUP 22669, 4, 28.1–39.2 mm SL, same locality and collectors as holotype, 24 Apr 2017 .

Remarks: The number of specimens from the lot NUP 22660 was not reported in the original description.