A small freshwater fish of the perch family, found in certain US rivers.
- ‘Most people know only one darter, Percina tanasi, the snail darter. Etnier is the man who made the snail darter famous, discovering what was then a new fish to science in 1973, just upstream of the all-but-complete Tellico Dam, which was being built by the Tennessee Valley Authority (TVA).’
- ‘The general coloration of the snail darter is brown to brownish-gray with a trace of green above and mostly white below.’
- ‘Environmentalists have had considerable success in the courts, most memorably in 1978, when the Supreme Court blocked - temporarily - construction of the Tellico Dam in Tennessee to preserve a tiny fish, the snail darter.’