Triportheinae

Triportheus is a genus of freshwater ray-finned fishes belonging to the family Triportheidae, the hatchet characins or keeled characins. The fishes in this genus are found in South America, including Trinidad, ranging from the Rio de la Plata basin to the basins of the Orinoco and Magdalena. Some are migratory. This genus is classified in the subfamily Triportheinae.

species of fish

Lignobrycon is a genus of freshwater ray-finned fishes belonging to the family Triportheidae, the hatchet characins. This genus contains one known extant species, L. myersi, and one, or more, extinct species. The fishes in this genus are found in South America.