Species of Greatest Conservation Need By Taxon
Mollusc
| Scientific Name | Common Name | RSGCN Concern Level |
|---|---|---|
| Nesovitrea electrina | Amber Glass | |
| Novisuccinea chittenangoensis | Chittenango Ambersnail | Very High |
| Obliquaria reflexa | Threehorned Wartyback | |
| Obovaria olivaria | Hickorynut | |
| Obovaria subrotunda | Round Hickorynut | High |
| Ovatella myosotis | Mouse Ear Marsh Snail | |
| Oxyloma effusum | Coastal-plain Ambersnail | |
| Oxyloma retusum | Blunt Ambersnail | High |
| Oxyloma subeffusum | Chesapeake Ambersnail | Moderate |
| Pallifera fosteri | Foster Mantleslug | |
| Pallifera hemphilli | Black Mantleslug | High |
| Pallifera ohioensis | Redfoot Mantleslug | |
| Pallifera secreta | Severed Mantleslug | |
| Pallifera varia | Variable Mantleslug | |
| Paravitrea bellona | Club Supercoil | |
| Paravitrea blarina | Shrew Supercoil | Moderate |
| Paravitrea calcicola | Pearl Supercoil | |
| Paravitrea ceres | Sidelong Supercoil | Very High |
| Paravitrea dentilla | Comb Supercoil | |
| Paravitrea hera | Spirit Supercoil | Very High |
| Paravitrea mira | Funnel Supercoil | High |
| Paravitrea placentula | Glossy Supercoil | |
| Paravitrea pontis | Natural Bridge Supercoil | Moderate |
| Paravitrea reesei | Round Supercoil | |
| Paravitrea septadens | Brown Supercoil | High |
| Paravitrea seradens | Barred Supercoil | |
| Paravitrea subtilis | Slender Supercoil | |
| Parvaspina collina | James Spinymussel | |
| Patera laevior | Smooth Bladetooth | Very High |
| Patera panselenus | Virginia Bladetooth | |
| Patera pennsylvanica | Proud Globelet | |
| Pegias fabula | Littlewing Pearlymussel | |
| Petricolaria pholadiformis | False Angelwing | |
| Philomycus flexuolaris | Winding Mantleslug | |
| Philomycus virginicus | Virginia Mantleslug | |
| Physa carolinae | Carolina Physa | |
| Physa vernalis | Vernal Physa | |
| Pisidium equilaterale | Round Peaclam | |
| Planorbula armigera | Thicklip Rams-horn | |
| Plethobasus cooperianus | Orangefoot Pimpleback | Very High |
| Plethobasus cyphyus | Sheepnose | Very High |
| Pleurobema clava | Clubshell | Very High |
| Pleurobema cordatum | Ohio Pigtoe | |
| Pleurobema oviforme | Tennessee Clubshell | High |
| Pleurobema plenum | Rough Pigtoe | Very High |
| Pleurobema rubrum | Pyramid Pigtoe | |
| Pleurobema sintoxia | Round Pigtoe | |
| Pleurocera acuta | Sharp Hornsnail | |
| Pleurocera gradata | Bottle Hornsnail | |
| Pleuronaia barnesiana | Tennessee Pigtoe |