Characidium is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but C. marshi is from Panama.[1] They are small (less than 10 cm or 4 in long), slender fish that live on the bottom in flowing fresh waters and feed on small animals such as insects.[2]
There are currently 69 recognized species in this genus:[1]
Characidium is a genus of fish in the family Crenuchidae (South American darters). They are mainly found in South America, but C. marshi is from Panama. They are small (less than 10 cm or 4 in long), slender fish that live on the bottom in flowing fresh waters and feed on small animals such as insects.