Species of Greatest Conservation Need By Taxon

Mollusc

Scientific Name Common Name RSGCN Concern Level
Acella haldemani Spindle Lymnaea
Actinonaias ligamentina Mucket
Alasmidonta heterodon Dwarf Wedgemussel Very High
Alasmidonta marginata Elktoe
Alasmidonta undulata Triangle Floater Moderate
Alasmidonta varicosa Brook Floater Very High
Alasmidonta viridis Slippershell Mussel
Alderia modesta Modest Alderia
Allogona profunda Broad-banded Forestsnail
Amblema plicata Threeridge
Amnicola decisus A Spire Snail
Amphinaias nodulata Wartyback
Anguispira alternata Flamed Tigersnail
Anguispira clarki A Tigersnail
Anguispira fergusoni Coastal Plain Tigersnail
Anguispira jessica Mountain Disc
Anguispira kochi Banded Tigersnail
Anguispira mordax Appalachian Tigersnail
Anguispira stihleri Greenbrier Tigersnail
Anguispira strongylodes Southeast Tigersnail
Anodonta implicata Alewife Floater
Anodonta suborbiculata Flat Floater
Anodontoides ferussacianus Cylindrical Papershell
Aplexa hypnorum Moss Bladder Snail
Appalachina sayana Spike-lip Crater Snail
Arctica islandica Ocean/Black Quahog
Argopecten irradians Bay Scallop High
Barnea truncata Atlantic Mud Piddock
Birgella subglobosus Globe Siltsnail
Boreotrophon clathratus Clathrate Trophon
Boreotrophon truncatus Murex
Bulimnea megastoma Mammoth Lymnaea
Busycon carica Knobbed Whelk
Busycotypus canaliculatum Channeled Whelk
Carychium exiguum Obese Thorn
Carychium nannodes File Thorn
Catinella hubrichti Snowhill Ambersnail
Catinella vermeta Suboval Ambersnail
Chlamys islandica Icelandic Scallop
Columella columella Toothless Column Snail
Colus pygmaeus Colus Snail
Crassostrea virginica Eastern Oyster
Cratena pilata Striped Nudibranch
Cyclonaias tuberculata Purple Wartyback
Cyprogenia stegaria Fanshell Very High
Deroceras laeve Meadow Slug
Discus catskillensis Angular Disc
Discus nigrimontanus Black Mountain Disc
Discus patulus Domed Disc
Discus whitneyi Forest Disc