Acentronichthys Brachyglanis Brachyrhamdia Cetopsorhamdia Chasmocranus Gladioglanis Goeldiella Heptapterus Horiomyzon Imparfinis Leptorhamdia Mastiglanis Myoglanis Nannoglanis Nemuroglanis Pariolius Phenacorhamdia Phreatobius Pimelodella Rhamdella Rhamdia Rhamdioglanis Rhamdiopsis Taunayia The Heptapteridae, or three-barbeled catfishes, are a family of catfish that originate from the Americas.

[2] Most species are restricted to South America, but Imparfinis lineatus, Nemuroglanis panamensis and Pimelodella chagresi are native to Panama, and Rhamdia species occur as far north as Mexico.

[2] However, molecular evidence shows this family is a part of the superfamily Pimelodoidea along with the Pimelodidae, Pseudopimelodidae, and Conorhynchos.

However, no external characteristics unique to this family allow it to be differentiated from the Pimelodidae.

[2] The Heptapteridae include a few troglobitic species in the genera Pimelodella, Rhamdia, Rhamdiopsis, and Taunayia.