Curculionichthys scaius Calegari, Gamarra & Reis, 2018: 664, fig. 1.

Paratypes: 1 lot, 85 specimens —NUP 18526, 85, 17.7–26.1 mm SL, Brazil, Mato Grosso, Aripuanã, creek on road to Lontra, tributary to the rio Aripuanã drainage, rio Madeira basin, 10°19’33”S, 59°33’08”W, H. Pains-Silva, 23 Jul 2017 .