Species Lists and Distributions
The Illinois Natural History Survey Mollusk Collection provides species lists and distribution information for mollusks found in Illinois. These lists are divided into three sections to make it easier to explore species diversity across different habitats.
- Freshwater Bivalves of Illinois — Includes mussels and clams found in Illinois rivers, lakes, and streams.
- Freshwater Snails of Illinois — Covers the variety of aquatic snail species found throughout Illinois.
- Terrestrial Mollusca of Illinois — Highlights land snails and slugs native to Illinois.
Our former curator, Kevin Cummings, also did extensive research on the Freshwater Mussels of Venezuela.