About Etheostoma radiosum (Hubbs & Black, 1941)
The orangebelly darter, scientifically named Etheostoma radiosum (Hubbs & Black, 1941), is a species of freshwater ray-finned fish. It is a darter belonging to the subfamily Etheostomatinae, which is part of the family Percidae — a group that also includes perches, ruffes, and pikeperches. This species is endemic to the eastern United States, where it is found only in the Ouachita and Red River drainages, located in southwestern Arkansas and southeastern Oklahoma. It inhabits gravel and rubble riffles and runs in creeks, and in small to medium-sized rivers. The maximum total length this species can reach is 8.5 cm (3.3 in).
