| Stenotrema barbatum |
Bristled Slitmouth |
|
| Allogona profunda |
Broad-banded Forestsnail |
|
| Alasmidonta varicosa |
Brook Floater |
Very High |
| Gastrodonta interna |
Brown Bellytooth |
|
| Inflectarius kalmianus |
Brown Globelet |
|
| Euconulus fulvus |
Brown Hive |
|
| Punctum blandianum |
Brown Spot |
|
| Paravitrea septadens |
Brown Supercoil |
High |
| Pomatiopsis cincinnatiensis |
Brown Walker |
|
| Triodopsis juxtidens robinae |
Brush Creek Threetooth |
|
| Triodopsis tennesseensis |
Budded Threetooth |
|
| Gillia altilis |
Buffalo Pebblesnail |
|
| Ellipsaria lineolata |
Butterfly Mussel |
|
| Triodopsis rugosa |
Buttressed Threetooth |
Very High |
| Lyogyrus walkeri |
Canadian Duskysnail |
|
| Vertigo oscariana |
Capital Vertigo |
|
| Stenotrema spinosum |
Carinate Slitmouth |
|
| Elliptio angustata |
Carolina Lance Mussel |
|
| Physa carolinae |
Carolina Physa |
|
| Elliptio congaraea |
Carolina Slabshell Mussel |
|
| Triodopsis anteridon |
Carter Threetoothed Snail |
|
| Megapallifera mutabilis |
Changeable Mantleslug |
|
| Busycotypus canaliculatum |
Channeled Whelk |
|
| Triodopsis platysayoides |
Cheat Threetooth |
High |
| Hendersonia occulta |
Cherrystone Drop |
|
| Oxyloma subeffusum |
Chesapeake Ambersnail |
Moderate |
| Novisuccinea chittenangoensis |
Chittenango Ambersnail |
Very High |
| Boreotrophon clathratus |
Clathrate Trophon |
|
| Fumonelix wheatleyi |
Clingman Covert |
|
| Paravitrea bellona |
Club Supercoil |
|
| Pleurobema clava |
Clubshell |
Very High |
| Elimia aterina |
Coal Elimia |
|
| Littoridinops tenuipes |
Coastal Marsh Snail |
|
| Anguispira fergusoni |
Coastal Plain Tigersnail |
|
| Oxyloma effusum |
Coastal-plain Ambersnail |
|
| Colus pygmaeus |
Colus Snail |
|
| Paravitrea dentilla |
Comb Supercoil |
|
| Vallonia costata |
Costate Vallonia |
|
| Galba rustica |
Country Fossaria |
|
| Hemistena lata |
Cracking Pearlymussel |
Very High |
| Lasmigona compressa |
Creek heelsplitter |
|
| Strophitus undulatus |
Creeper |
|
| Vertigo cristata |
Crested Vertigo |
|
| Ventridens decussatus |
Crossed Dome |
|
| Millerelix plicata |
Cumberland Liptooth |
|
| Medionidus conradicus |
Cumberland Moccasinshell |
|
| Theliderma intermedia |
Cumberland Monkeyface |
Very High |
| Epioblasma brevidens |
Cumberlandian Combshell |
Very High |
| Vertigo clappi |
Cupped Vertigo Snail |
Very High |
| Anodontoides ferussacianus |
Cylindrical Papershell |
|