Identification
Adults are about 1.6–2.2 inches long. The brown to gray-olive body usually has 13 or 14 small dark spots just below the lateral line. The breast becomes dark green-blue in breeding males, while the first dorsal fin has a red edge.
Sources: Etowah Darter species profile
Similar darters
The species was formerly confused with greenbreast darter. Male Etowah darters lack the red marks on the sides and anal fin that occur in greenbreast darters. This comparison is more informative than the general green-blue breeding color, which several related species share.
Sources: Etowah Darter species profile
Guide sources
Research reviewed 2026-10-19.
- Etowah Darter species profile — U.S. Fish and Wildlife Service
