[citation needed] The maximum length of an Ouachita madtom is about 4 inches (10 cm).

[1] A usual inhabitant of clear, small to medium, gravel-bottomed streams, the Ouachita madtom has been found in extremely shallow areas of the Saline River.

The six specimens were obviously young-of-the-year, and their presence raised speculations that Ouachita madtoms seek smaller streams during summer months to spawn.

The following are known sources of food: The Ouachita madtom is considered a species of greatest conservation need by the Arkansas Game and Fish Commission.

[2] The penalties for any form of trafficking or taking of Ouachita madtoms can be as serious as a $500,000 USD fine, 1 year imprisonment, or both.