Imparfinis

Imparfinis is a genus of three-barbeled catfishes native to South America, with a single species (I. lineatus) in Central America.

==Species== There are currently 23 recognized species in this genus: Imparfinis arceae Silva, Sabaj Pérez, Carvalho & Oliveira, 2025 Imparfinis cochabambae (Fowler, 1940) Imparfinis guttatus (N. E. Pearson, 1924) Imparfinis hasemani Steindachner, 1915 Imparfinis lepturus Silva, Reia, Morimoto, Benine & Oliveira, 2023 Imparfinis lineatus (W. A. Bussing, 1970) Imparfinis longicauda (Boulenger, 1887) Imparfinis microps C. H. Eigenmann & Fisher, 1916 Imparfinis minutus (Lütken, 1874) Imparfinis mirini Haseman, 1911 Imparfinis mishky Almirón, Casciotta, Bechara, Ruiz Díaz, Bruno, D'Ambrosio, Solimano & Soneiro, 2007 Imparfinis munduruku Imparfinis nemacheir (C. H. Eigenmann & Fisher, 1916) Imparfinis pijpersi (Hoedeman, 1961) Imparfinis piperatus C. H. Eigenmann & A. A. Norris, 1900 Imparfinis pristos Mees & Cala, 1989 Imparfinis pseudonemacheir Mees & Cala, 1989 Imparfinis robustus Cortés-Hernández, López-Castaño, Milani & DoNascimiento, 2023 Imparfinis schubarti (A. L. Gomes, 1956) Imparfinis spurrellii (Regan, 1913) Imparfinis stictonotus (Fowler, 1940) Imparfinis timana Ortega-Lara, Milani, DoNascimiento, Villa-Navarro & Maldenado-Ocampo, 2011 Imparfinis usmai Ortega-Lara, Milani, DoNascimiento, Villa-Navarro & Maldenado-Ocampo, 2011