See the text The Hemiodontidae are a small family of freshwater characins found in northern South America, south to the Paraná-Paraguay Basin.

The larger species are popular food fish.

[1] Hemiodontids have a streamlined body shape; many are fast-swimming, and are able to leap out of the water to escape predators.

The adults of all species except Micromischodus sugillatus have no teeth on their lower jaws.

Most species have a round spot on the side of the midbody and a stripe along the lower lobe of the caudal fin.