Species of Greatest Conservation Need By Taxon
Mollusc
| Scientific Name | Common Name | RSGCN Concern Level |
|---|---|---|
| Paravitrea dentilla | Comb Supercoil | |
| Paravitrea ceres | Sidelong Supercoil | Very High |
| Paravitrea calcicola | Pearl Supercoil | |
| Paravitrea blarina | Shrew Supercoil | Moderate |
| Paravitrea bellona | Club Supercoil | |
| Pallifera varia | Variable Mantleslug | |
| Pallifera secreta | Severed Mantleslug | |
| Pallifera ohioensis | Redfoot Mantleslug | |
| Pallifera hemphilli | Black Mantleslug | High |
| Pallifera fosteri | Foster Mantleslug | |
| Oxyloma subeffusum | Chesapeake Ambersnail | Moderate |
| Oxyloma retusum | Blunt Ambersnail | High |
| Oxyloma effusum | Coastal-plain Ambersnail | |
| Ovatella myosotis | Mouse Ear Marsh Snail | |
| Obovaria subrotunda | Round Hickorynut | High |
| Obovaria olivaria | Hickorynut | |
| Obliquaria reflexa | Threehorned Wartyback | |
| Novisuccinea chittenangoensis | Chittenango Ambersnail | Very High |
| Nesovitrea electrina | Amber Glass | |
| Nesovitrea binneyana | Blue Glass Snail | |
| Neohelix dentifera | Big-tooth Whitelip | |
| Mytilus edulis | Blue Mussell | |
| Mya truncata | Gaper Clam | |
| Mya arenaria | Soft Shell Clam | |
| Modiolus modiolus | Northern Horse Mussel | |
| Millerelix plicata | Cumberland Liptooth | |
| Mesomphix subplanus | Flat Button | |
| Mesomphix sp. 1 | A Button | |
| Mesomphix rugeli | Wrinkled Button | |
| Mesomphix perlaevis | Smooth Button | |
| Mesomphix luisant | Glossy Button | |
| Mesomphix capnodes | Dusky Button | |
| Mesodon zaletus | Toothed Globe | |
| Mesodon normalis | Grand Globe | |
| Mesodon mitchellianus | Sealed Globelet | |
| Mesodon elevatus | Proud Globe | |
| Mesodon clausus | Yellow Globelet Snail | |
| Mesodon andrewsae | Balsam Globe | |
| Mercenaria mercenaria | Northern Quahog | |
| Melampus bidentatus | Marsh Snail | |
| Megapallifera wetherbyi | Blotchy Mantleslug | Moderate |
| Megapallifera mutabilis | Changeable Mantleslug | |
| Megalonaias nervosa | Washboard | |
| Medionidus conradicus | Cumberland Moccasinshell | |
| Marstonia lustrica | Boreal Marstonia | |
| Margaritifera monodonta | Spectaclecase | Very High |
| Margaritifera margaritifera | Eastern Pearlshell | Moderate |
| Lyogyrus walkeri | Canadian Duskysnail | |
| Lyogyrus pupoideus | Pupa Duskysnail | |
| Lyogyrus granum | Squat Duskysnail |