Johnny Darter and Similar Species
Etheostoma nigrum
Got a photo? Identify fish instantly with the Fishby app.
Open the appSeveral fish can be confused with Johnny Darter. Here are the key differences.
Species often confused with {name}
Fantail Darter
Etheostoma flabellare
Key differences: The Fantail Darter has a more robust body, a rounded caudal fin, and typically has vertical bars or blotches rather than distinct W- or X-shaped markings. Breeding male Fantail Darters develop fleshy knobs on the tips of their dorsal fin spines.
Greenside Darter
Etheostoma blennioides
Key differences: Greenside Darters are generally larger, have a more pointed snout, and possess distinct W-shaped markings that are often connected, forming a more continuous pattern. They also have a frenum, unlike the Johnny Darter.
Tessellated Darter
Etheostoma olmstedi
Key differences: The Tessellated Darter is very similar and was once considered a subspecies of E. nigrum. It typically has more irregular, blotchy markings rather than the distinct W- or X-shapes, and often has a more mottled appearance. Genetic analysis is often required for definitive identification in areas of sympatry.
Explore Johnny Darter
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.