Curculionichthys sabaji is a species of catfish in the family Loricariidae.

The species reaches 2.4 cm (0.9 inches) SL.

[1] It was described in 2015 by Fábio Fernandes Roxo, Gabriel Souza da Costa e Silva, Luz E. Orrego, and Claudio Oliveira, alongside the description of the genus Curculionichthys to include several species formerly classified in the genus Hisonotus.

[2] The catfish is named in honor of Mark Sabaj Pérez (b.

1969), the Collection Manager, Ichthyology, Academy of Natural Sciences of Philadelphia, for his dedication and contributions to study of Neotropical fishes, especially those from the rio Xingu basin.