Species of Greatest Conservation Need By Taxon
Mollusc
| Scientific Name | Common Name | RSGCN Concern Level |
|---|---|---|
| Mya arenaria | Soft Shell Clam | |
| Anguispira strongylodes | Southeast Tigersnail | |
| Hawaiia alachuana | Southeastern Gem | |
| Strobilops texasianus | Southern Pinecone | |
| Margaritifera monodonta | Spectaclecase | Very High |
| Elimia arachnoidea | Spider Elimia | |
| Elliptio dilatata | Spike | |
| Appalachina sayana | Spike-lip Crater Snail | |
| Acella haldemani | Spindle Lymnaea | |
| Ptychatractus ligatus | Spindle Shell | |
| Io fluvialis | Spiny Riversnail | |
| Paravitrea hera | Spirit Supercoil | Very High |
| Ventridens virginicus | Split-tooth Dome | |
| Elimia proxima | Sprite Elimia | |
| Triodopsis picea | Spruce Knob Threetooth | High |
| Lyogyrus granum | Squat Duskysnail | |
| Gyraulus crista | Star Gyro | |
| Cratena pilata | Striped Nudibranch | |
| Webbhelix multilineata | Striped Whitelip | Very High |
| Glyphyalinia sculptilis | Suborb Glyph | |
| Catinella vermeta | Suboval Ambersnail | |
| Vertigo teskeyae | Swamp Vertigo | |
| Helicodiscus triodus | Talus Coil | High |
| Vertigo elatior | Tapered Vertigo | |
| Helicodiscus shimeki | Temperate Coil | |
| Venustaconcha trabalis | Tennessee Bean | |
| Pleurobema oviforme | Tennessee Clubshell | High |
| Lasmigona holstonia | Tennessee Heelsplitter | High |
| Pleuronaia barnesiana | Tennessee Pigtoe | |
| Planorbula armigera | Thicklip Rams-horn | |
| Vallonia perspectiva | Thin-lip Vallonia | |
| Valvata tricarinata | Three-ridge Valvata | |
| Obliquaria reflexa | Threehorned Wartyback | |
| Amblema plicata | Threeridge | |
| Leptodea ochracea | Tidewater Mucket | High |
| Lobosculum pustuloides | Tiny Liptooth | |
| Glyphyalinia rimula | Tongued Glyph | |
| Mesodon zaletus | Toothed Globe | |
| Euconulus dentatus | Toothed Hive | |
| Columella columella | Toothless Column Snail | |
| Alasmidonta undulata | Triangle Floater | Moderate |
| Vallonia parvula | Trumpet Vallonia | |
| Helicodiscus multidens | Twilight Coil | |
| Holsingeria unthanksensis | Unthanks Cave Snail | |
| Pallifera varia | Variable Mantleslug | |
| Physa vernalis | Vernal Physa | |
| Patera panselenus | Virginia Bladetooth | |
| Polygyriscus virginianus | Virginia Coil | Very High |
| Philomycus virginicus | Virginia Mantleslug | |
| Elimia virginica | Virginia River Snail |