Acestrorhamphinae

genus of fishes

Oligosarcus is a genus of freshwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. The fishes in this genus are found in South America. They reach up to in length and are predators that mainly feed on smaller fish.

Ctenobrycon is a genus of fresnwater ray-finned fishes belonging to the family Acestrorhamphidae, the American characins. The fishes in this genus are found in tropical South America.

Psalidodon is a genus of freshwater ray-finned fishes belonging to the family Ancestrorhamphidae, the American characins. Some of these fish, like many of their relatives, are kept as aquarium pets and known collectively as tetras.