Range and identification
The 2009 molecular and morphological study records it in the lower Great Lakes region and westward. A fully scaled belly and relatively low scale counts help distinguish it from other greenside forms, although several measurements overlap. The study notes the difficulty of separating it from the northern form using counts alone.
Guide sources
Research reviewed 2026-10-19.
- Molecular, morphological, and biogeographic resolution of cryptic taxa in the Greenside Darter complex — Molecular Phylogenetics and Evolution
