Johnny darter (Etheostoma nigrum)
General data
- Main name: Johnny darter
- Climates: Subtropical, Temperate
- Habitat: Freshwater
- Native: North America
- Distribution: St. Lawrence River, Mississippi River
Classification
- Genus: Etheostoma - Darters
- Family: Percidae - Perches
- Order: Perciformes - Perches
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes