Species of Greatest Conservation Need By Taxon
Mollusc
| Scientific Name | Common Name | RSGCN Concern Level |
|---|---|---|
| Vertigo oscariana | Capital Vertigo | |
| Vertigo ovata | Ovate Vertigo snail | |
| Vertigo paradoxa | Mystery Vertigo | |
| Vertigo parvula | Smallmouth Vertigo | Moderate |
| Vertigo pygmaea | Pygmy Vertigo | |
| Vertigo teskeyae | Swamp Vertigo | |
| Vertigo tridentata | Honey Vertigo | |
| Vertigo ventricosa | Five-tooth Vertigo Snail | |
| Villosa constricta | Notched Rainbow | Moderate |
| Villosa fabalis | Rayed Bean | Very High |
| Villosa iris | Rainbow | |
| Villosa lienosa | Little Spectaclecase | |
| Villosa vanuxemensis | Mountain Creekshell Mussel | |
| Vitrina angelicae | Eastern Glass-snail | |
| Vitrinizonites latissimus | Glassy Grapeskin | |
| Webbhelix multilineata | Striped Whitelip | Very High |
| Zirfaea crispata | Atlantic Great Piddock | |
| Zonitoides elliotti | Green Dome | |
| Zonitoides nitidus | Black Gloss |