This fish can be characterized by a long, pointed snout that can be darker colored than the rest of its body and has been recorded to reach lengths of up to 11 cm.

Longnose darters are known to occur in thirteen different streams in three river systems across the southern Missouri Ozarks and the Ouachita mountains in Arkansas and eastern Oklahoma.

Like most darters, they spawn in clean, silt free crevices and males guard the nest until eggs are hatched.

[4] Like any species that requires clean, rocky substrate, the longnose darter is susceptible to siltation.

Runoff is also an issue, as fertilizers and other chemicals have the potential to change the pH or dissolved oxygen levels in the water.