Characidiinae

Characidium is a genus of freshwater ray-finned fish belonging to the family Crenuchidae, the South American darters. The fishes in this genus are mainly found in South America, but C. marshi is from Panama. They are small (less than long), slender fish that live on the bottom in flowing fresh waters and feed on small animals such as insects.

Melanocharacidium is a genus of freshwater ray-finned fishes belonging to the family Crenuchidae, the South American darters. They are found in the Amazon, Orinoco and Araguaia basins, as well as river basins of the Guianas. They are small fish, up to around in standard length.

Microcharacidium is a genus of freshwater ray-finned fishes belonging to the family Crenuchidae, the South American darters. The fishes in this genus are found in South America.

Ammocryptocharax is a genus of freshwater ray-finned fishes belonging to the family Crenuchidae, the South American darters. These fishes are found in South America.

Elachocharax is a genus of small freshwater ray-finned fish belonging to the family Crenuchidae, the South American darters. They are native to the Amazon and Orinoco basins in South America.

species of fish

species of fish

species of fish

species of fish

species of fish

Characidiinae is a subfamily of freshwater ray-fnned fishes, one of two subfamilies belonging to the family Crenuchidae, the South American darters. The fishes in this subfamily are found in the Neotropics.

Odontocharacidium is a genus of freshwater ray-finned fishes belonging to the family Crenuchidae, the South American darters. The fishes in this genus are small fishes, with a maximum total length of , found in South America.