The slackwater darter, (Etheostoma boschungi) is a small freshwater fish of the stippled darter group. The slackwater darter has a conspicuous dark subocular bar and three prominent saddles. It is rather drab in color, the dorsum being dusky, olivaceous, or brownish. The lateral blotches are dark brown to blue-black. The venter is slightly dusky and may have some orange and yellow pigments, which are more intense in males than in females. Maximum size is about 55 mm standard length.