| Green Jackknife Clam | Solen | viridis | | 1 | Saltwater Bivalves | Solenidae | Adapedonta | Bivalvia | Animalia |
| Transverse Ark | Anadara | transversa | | 5 | Saltwater Bivalves | Arcidae | Arcida | Bivalvia | Animalia |
| Blood Ark | Lunarca | ovalis | | 47 | Saltwater Bivalves | Arcidae | Arcida | Bivalvia | Animalia |
| Ponderous Ark | Noetia | ponderosa | | 17 | Saltwater Bivalves | Noetiidae | Arcida | Bivalvia | Animalia |
| Fossor Coquina | Donax | fossor | | 6 | Donax Clams | Donacidae | Cardiida | Bivalvia | Animalia |
| Chestnut Clam | Isocrassina | castanea | | 31 | Astartid Clams | Astartidae | Carditida | Bivalvia | Animalia |
| Zebra Mussel | Dreissena | polymorpha | | 3 | False Mussels | Dreissenidae | Myida | Bivalvia | Animalia |
| Dark False Mussel | Mytilopsis | leucophaeata | | 31 | False Mussels | Dreissenidae | Myida | Bivalvia | Animalia |
| Gould's Shipworm | Bankia | gouldi | | 1 | Shipworms | Teredinidae | Myida | Bivalvia | Animalia |
| Soft-shell Clam | Mya | arenaria | | 46 | Saltwater Bivalves | Myidae | Myoida | Bivalvia | Animalia |
| Atlantic Mud-piddock | Barnea | truncata | | 2 | Saltwater Bivalves | Pholadidae | Myoida | Bivalvia | Animalia |
| Angelwing | Cyrtopleura | costata | | 23 | Saltwater Bivalves | Pholadidae | Myoida | Bivalvia | Animalia |
| Atlantic Paper Mussel | Amygdalum | papyrium | | 2 | Saltwater Bivalves | Mytilidae | Mytiloida | Bivalvia | Animalia |
| Atlantic Ribbed Mussel | Geukensia | demissa | | 126 | Saltwater Bivalves | Mytilidae | Mytiloida | Bivalvia | Animalia |
| Hooked Mussel | Ischadium | recurvum | | 95 | Saltwater Bivalves | Mytilidae | Mytiloida | Bivalvia | Animalia |
| Blue Mussel | Mytilus | edulis | | 9 | Saltwater Bivalves | Mytilidae | Mytiloida | Bivalvia | Animalia |
| Eastern Oyster | Crassostrea | virginica | | 129 | Saltwater Bivalves | Ostreidae | Ostreoida | Bivalvia | Animalia |
| Atlantic Calico Scallop | Argopecten | gibbus | | 0 | Scallops | Pectinidae | Pectinida | Bivalvia | Animalia |
| Atlantic Bay Scallop | Argopecten | irradians | | 26 | Scallops | Pectinidae | Pectinida | Bivalvia | Animalia |
| Glassy Lyonsia | Lyonsia | hyalina | | 0 | Saltwater Bivalves | Lyonsiidae | Pholadomyoida | Bivalvia | Animalia |
| Atlantic Awning Clam | Solemya | velum | | 1 | Saltwater Bivalves | Solemyidae | Pholadomyoida | Bivalvia | Animalia |
| Herrington Fingernailclam | Sphaerium | occidentale | | 1 | Pea Clams | Sphaeriidae | Sphaeriida | Bivalvia | Animalia |
| Dwarf Wedgemussel | Alasmidonta | heterodon | | 17 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Susquehanna Elktoe | Alasmidonta | marginata | | 0 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Triangle Floater | Alasmidonta | undulata | | 30 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Brook Floater | Alasmidonta | varicosa | | 35 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Tidewater Mucket | Atlanticoncha | ochracea | | 17 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Carolina Lance | Elliptio | angustata | | 0 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Eastern Elliptio | Elliptio | complanata | | 40 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Northern Lance | Elliptio | fisheriana | | 5 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Yellow Lance | Elliptio | lanceolata | | 5 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Atlantic Spike | Elliptio | producta | | 24 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Plain Pocketbook | Lampsilis | cardium | | 5 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Yellow Lampmussel | Lampsilis | cariosa | | 12 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Eastern Lampmussel | Lampsilis | radiata | | 24 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| No Common Name | Lampsilis | sp. | | 1 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Green Floater | Lasmigona | subviridis | | 19 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Eastern Floater | Pyganodon | cataracta | | 18 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Eastern Pondmussel | Sagittunio | nasutus | | 5 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Creeper | Strophitus | undulatus | | 16 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Paper Pondshell | Utterbackia | imbecillis | | 3 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Alewife Floater | Utterbackiana | implicata | | 3 | Freshwater Bivalves | Unionidae | Unionoida | Bivalvia | Animalia |
| Channeled Duck Clam | Raeta | plicatella | | 2 | Saltwater Bivalves | Anatinellidae | Venerida | Bivalvia | Animalia |
| Florida Marshclam | Cyrenoida | floridana | | 1 | Saltwater Bivalves | Cyrenoididae | Venerida | Bivalvia | Animalia |
| Atlantic Surfclam | Spisula | solidissima | | 20 | Saltwater Bivalves | Mactridae | Venerida | Bivalvia | Animalia |
| Cross-barred Venus | Chione | elevata | | 2 | Saltwater Bivalves | Veneridae | Venerida | Bivalvia | Animalia |
| Thin Cyclinella | Cyclinella | tenuis | | 1 | Saltwater Bivalves | Veneridae | Venerida | Bivalvia | Animalia |
| False Quahog | Pitar | morrhuanus | | 1 | Saltwater Bivalves | Veneridae | Venerida | Bivalvia | Animalia |
| Morton's Egg-cockle | Laevicardium | mortoni | | 0 | Saltwater Bivalves | Cardiidae | Veneroida | Bivalvia | Animalia |
| Asian Clam | Corbicula | fluminea | | 206 | Freshwater Bivalves | Corbinculidae | Veneroida | Bivalvia | Animalia |
| Eastern Aligena | Aligena | elevata | | 1 | Saltwater Bivalves | Lasaeidae | Veneroida | Bivalvia | Animalia |
| Dwarf Surfclam | Mulinia | lateralis | | 9 | Saltwater Bivalves | Mactridae | Veneroida | Bivalvia | Animalia |
| Atlantic Rangia | Rangia | cuneata | | 115 | Freshwater Bivalves | Mactridae | Veneroida | Bivalvia | Animalia |
| False Angelwing | Petricolaria | pholadiformis | | 9 | Saltwater Bivalves | Petricolidae | Veneroida | Bivalvia | Animalia |
| Atlantic Jack-knife Clam | Ensis | directus | | 10 | Saltwater Bivalves | Pharidae | Veneroida | Bivalvia | Animalia |
| Lake Fingernailclam | Musculium | lacustre | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Swamp Fingernailclam | Musculium | partumeium | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Pond Fingernailclam | Musculium | securis | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Long Fingernailclam | Musculium | transversum | | 1 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Adam Peaclam | Pisidium | adamsi | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Ubiquitous Peaclam | Pisidium | casertanum | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Ridged-beak Peaclam | Pisidium | compressum | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Greater Eastern Peaclam | Pisidium | dubium | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Round Peaclam | Pisidium | equilaterale | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| River Peaclam | Pisidium | fallax | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Rusty Peaclam | Pisidium | ferrugineum | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Lilljeborg Peaclam | Pisidium | lilljeborgi | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Shiny Peaclam | Pisidium | nitidum | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Perforated Peaclam | Pisidium | punctatum | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Triangular Peaclam | Pisidium | variable | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Walker Peaclam | Pisidium | walkeri | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| River Fingernailclam | Sphaerium | fabale | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Herrington Fingernailclam | Sphaerium | occidnetale | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Grooved Fingernailclam | Sphaerium | simile | | 0 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Striated Fingernailclam | Sphaerium | striatinum | | 1 | Freshwater Bivalves | Pisidiidae | Veneroida | Bivalvia | Animalia |
| Elongate Macona | Macoma | tenta | | 3 | Saltwater Bivalves | Tellinidae | Veneroida | Bivalvia | Animalia |
| Purplish Tagelus | Tagelus | divisus | | 1 | Saltwater Bivalves | Tellinidae | Veneroida | Bivalvia | Animalia |
| Stout Tagelus | Tagelus | plebeius | | 106 | Saltwater Bivalves | Tellinidae | Veneroida | Bivalvia | Animalia |
| Mitchell Macoma | Macoma | mitchelli | | 7 | Saltwater Bivalves | Tellinidea | Veneroida | Bivalvia | Animalia |
| Atlantic Macoma | Macoma | petalum | | 44 | Saltwater Bivalves | Tellinidea | Veneroida | Bivalvia | Animalia |
| Amethyst Gem Clam | Gemma | gemma | | 4 | Saltwater Bivalves | Veneridae | Veneroida | Bivalvia | Animalia |
| Northern Quahog | Mercenaria | mercenaria | | 35 | Saltwater Bivalves | Veneridae | Veneroida | Bivalvia | Animalia |