Species of Greatest Conservation Need By Taxon

Mollusc

Scientific Name Common Name RSGCN Concern Level
Ensis directus Atlantic Jackknife Clam
Elysia chlorotica Eastern Emerald Elysia
Elysia catulus A Nudibranch
Elliptio roanokensis Roanoke Slabshell
Elliptio producta Atlantic Spike Moderate
Elliptio lanceolata Yellow Lance High
Elliptio fisheriana Northern Lance Moderate
Elliptio dilatata Spike
Elliptio crassidens Elephantear Very High
Elliptio congaraea Carolina Slabshell Mussel
Elliptio complanata Eastern Elliptio
Elliptio angustata Carolina Lance Mussel
Ellipsaria lineolata Butterfly Mussel
Elimia virginica Virginia River Snail
Elimia proxima Sprite Elimia
Elimia catenaria Gravel Elimia
Elimia aterina Coal Elimia
Elimia arachnoidea Spider Elimia
Dromus dromas Dromedary Pearlymussel Very High
Discus whitneyi Forest Disc
Discus patulus Domed Disc
Discus nigrimontanus Black Mountain Disc
Discus catskillensis Angular Disc
Deroceras laeve Meadow Slug
Cyprogenia stegaria Fanshell Very High
Cyclonaias tuberculata Purple Wartyback
Cratena pilata Striped Nudibranch
Crassostrea virginica Eastern Oyster
Colus pygmaeus Colus Snail
Columella columella Toothless Column Snail
Chlamys islandica Icelandic Scallop
Catinella vermeta Suboval Ambersnail
Catinella hubrichti Snowhill Ambersnail
Carychium nannodes File Thorn
Carychium exiguum Obese Thorn
Busycotypus canaliculatum Channeled Whelk
Busycon carica Knobbed Whelk
Bulimnea megastoma Mammoth Lymnaea
Boreotrophon truncatus Murex
Boreotrophon clathratus Clathrate Trophon
Birgella subglobosus Globe Siltsnail
Barnea truncata Atlantic Mud Piddock
Argopecten irradians Bay Scallop High
Arctica islandica Ocean/Black Quahog
Appalachina sayana Spike-lip Crater Snail
Aplexa hypnorum Moss Bladder Snail
Anodontoides ferussacianus Cylindrical Papershell
Anodonta suborbiculata Flat Floater
Anodonta implicata Alewife Floater
Anguispira strongylodes Southeast Tigersnail