| No Common Name | Eulimnadia | francescae | | 1 | Limnadiidae | Diplostraca | Branchiopoda | Animalia |
| No Common Name | Eulimnadia | ventricosa | | 2 | Limnadiidae | Diplostraca | Branchiopoda | Animalia |
| No Common Name | Macrothrix | sp. | | 1 | Macrothricidae | Diplostraca | Branchiopoda | Animalia |
| No Common Name | Amphibalanus | venustus | | 4 | Balanidae | Sessilia | Hexanauplia | Animalia |
| No Common Name | Apolochus | cresti | | 12 | Amphilochidae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Cymadusa | compta | | 2 | Ampithoidae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Caprella | scaura | | 1 | Caprellidae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Crangonyx | stagnicolous | | 0 | Crangonyctidae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Gammarus | fasciatus | | 1 | Gammaridae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Gammarus | mucronatus | | 3 | Gammaridae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Gammarus | tigrinus | | 2 | Gammaridae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Neohaustorius | biarticulatus | | 1 | Haustoriidae | Amphipoda | Malacostraca | Animalia |
| No Common Name | Ameroculodes | edwardsi | | 2 | Oedicerotidae | Amphipoda | Malacostraca | Animalia |
| Northern Big-eyed Sandhopper | Americorchestia | megalophthalma | | 1 | Talitridae | Amphipoda | Malacostraca | Animalia |
| Big-clawed Snapping Shrimp | Alpheus | heterochaelis | | 0 | Alpheoidea | Decapoda | Malacostraca | Animalia |
| Giant Red Shrimp | Aristaeomorpha | foliacea | | 0 | Aristeidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Axius | armatus | | 0 | Axiidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Axius | serratus | | 0 | Axiidae | Decapoda | Malacostraca | Animalia |
| Gladiator Box Crab | Acanthocarpus | alexandri | | 0 | Calappidae | Decapoda | Malacostraca | Animalia |
| Flame Box Crab | Calappa | flammea | | 0 | Calappidae | Decapoda | Malacostraca | Animalia |
| Ghost Shrimp | Gilvossius | setimanus | | 0 | Callianassidae | Decapoda | Malacostraca | Animalia |
| Acuminate Crayfish | Cambarus | acuminatus | | 13 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Common Crayfish | Cambarus | bartonii | | 63 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Appalachian Brook Crayfish | Cambarus | carinirostris | | 11 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Upland Burrowing Crayfish | Cambarus | dubius | | 13 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Digger Crayfish | Creaserinus | fodiens | | 14 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Spiny-cheeked Crayfish | Faxonius | limosus | | 39 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Allegheny Crayfish | Faxonius | obscurus | | 31 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Rusty Crayfish | Faxonius | rusticus | | 17 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Virile Crayfish | Faxonius | virilis | | 42 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Devil Crayfish | Lacunicambarus | diogenes | | 39 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Little Brown Mudbug | Lacunicambarus | thomai | | 2 | Cambaridae | Decapoda | Malacostraca | Animalia |
| White River Crayfish | Procambarus | acutus | | 26 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Red Swamp Crayfish | Procambarus | clarkii | | 53 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Southern White River Crayfish | Procambarus | zonangulus | | 4 | Cambaridae | Decapoda | Malacostraca | Animalia |
| Jonah Crab | Cancer | borealis | | 0 | Cancridae | Decapoda | Malacostraca | Animalia |
| Atlantic Rock Crab | Cancer | irroratus | | 14 | Cancridae | Decapoda | Malacostraca | Animalia |
| Sand Shrimp | Crangon | septemspinosa | | 5 | Crangonidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pontophilus | brevirostris | | 0 | Crangonidae | Decapoda | Malacostraca | Animalia |
| Sars Shrimp | Sabinea | sarsii | | 0 | Crangonidae | Decapoda | Malacostraca | Animalia |
| Seven-lined Shrimp | Sabinea | septemcarinata | | 0 | Crangonidae | Decapoda | Malacostraca | Animalia |
| Thin-striped Hermit | Clibanarius | vittatus | | 5 | Diogenidae | Decapoda | Malacostraca | Animalia |
| Broad-backed Sumo Crab | Ethusa | microphthalma | | 0 | Dorippidae | Decapoda | Malacostraca | Animalia |
| Long-nosed Spider Crab | Libinia | dubia | | 3 | Epialtidae | Decapoda | Malacostraca | Animalia |
| Portly Spider Crab | Libinia | emarginata | | 4 | Epialtidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Libinia | sp. | | 3 | Epialtidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Agononida | longipes | | 0 | Galatheidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Munida | iris | | 0 | Galatheidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Munida | valida | | 0 | Galatheidae | Decapoda | Malacostraca | Animalia |
| Red Deepsea Crab | Chaceon | quinquedens | | 0 | Geryonidae | Decapoda | Malacostraca | Animalia |
| Gulfweed Crab | Planes | minutus | | 0 | Grapsidae | Decapoda | Malacostraca | Animalia |
| Calico Box Crab | Hepatus | epheliticus | | 0 | Hepatidae | Decapoda | Malacostraca | Animalia |
| Atlantic Sand Crab | Emerita | talpoida | | 128 | Hippidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Bythocaris | nana | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Bigclaw Hippolyte | Caridion | gordoni | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Circumpolar Eualid | Eualus | gaimardii | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Doll Eualid | Eualus | pusiolus | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Cerulean Sargassum Shrimp | Hippolyte | coerulescens | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| False Zostera Shrimp | Hippolyte | pleuracanthus | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Zostera Shrimp | Hippolyte | zostericola | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Slender Sargassum Shrimp | Latreutes | fucorum | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Polar Lebbeid | Lebbeus | polaris | | 0 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Peppermint Shrimp | Lysmata | wurdemanni | | 1 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| Arrow Shrimp | Tozeuma | carolinense | | 2 | Hippolytidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Homola | barbata | | 0 | Homolidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Collodes | robustus | | 0 | Inachidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Euprognatha | rastellifera | | 0 | Inachidae | Decapoda | Malacostraca | Animalia |
| Red Arrow Crab | Stenorhynchus | yangi | | 0 | Inachidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Naushonia | crangonoides | | 0 | Laomediidae | Decapoda | Malacostraca | Animalia |
| Daddy-longlegs Crab | Latreillia | manningi | | 0 | Latreillidae | Decapoda | Malacostraca | Animalia |
| Five-spined Purse Crab | Myropsis | quinquespinosa | | 0 | Leucosiidae | Decapoda | Malacostraca | Animalia |
| Speckled Purse Crab | Persephona | aquilonaris | | 13 | Leucosiidae | Decapoda | Malacostraca | Animalia |
| Mottled Purse Crab | Persephona | mediterranea | | 0 | Leucosiidae | Decapoda | Malacostraca | Animalia |
| Norway King Crab | Lithodes | maja | | 0 | Lithodidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Lucifer | faxoni | | 0 | Luciferidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Lucifer | typus | | 0 | Luciferidae | Decapoda | Malacostraca | Animalia |
| American Lobster | Homarus | americanus | | 0 | Nephropidae | Decapoda | Malacostraca | Animalia |
| Florida Lobsterette | Nephropsis | aculeata | | 0 | Nephropidae | Decapoda | Malacostraca | Animalia |
| Atlantic Sand Fiddler Crab | Leptuca | pugilator | | 6 | Ocypodidae | Decapoda | Malacostraca | Animalia |
| Red-jointed Fiddler Crab | Minuca | minax | | 32 | Ocypodidae | Decapoda | Malacostraca | Animalia |
| Atlantic Marsh Fiddler Crab | Minuca | pugnax | | 16 | Ocypodidae | Decapoda | Malacostraca | Animalia |
| Atlantic Ghost Crab | Ocypode | quadrata | | 169 | Ocypodidae | Decapoda | Malacostraca | Animalia |
| Estuarine Longeye Shrimp | Ogyrides | alphaerostris | | 0 | Ogyrididae | Decapoda | Malacostraca | Animalia |
| Arctic Lyre Crab | Hyas | coarctatus | | 0 | Oregoniidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Catapagurus | gracilis | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Coralthicket Hermit | Goreopagurus | piercei | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Acadian Hermit Crab | Pagurus | acadianus | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Banded Hermit Crab | Pagurus | annulipes | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pagurus | arcuatus | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Long-armed Hermit Crab | Pagurus | longicarpus | | 7 | Paguridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pagurus | politus | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Flat-clawed Hermit Crab | Pagurus | pollicaris | | 4 | Paguridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pagurus | pubescens | | 0 | Paguridae | Decapoda | Malacostraca | Animalia |
| Brown Grass Shrimp | Leander | tenuicornis | | 2 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Oriental Shrimp | Palaemon | macrodactylus | | 12 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Brackish Grass Shrimp | Palaemon | mundusnovus | | 0 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Riverine Grass Shrimp | Palaemon | paludosus | | 11 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Daggerblade Grass Shrimp | Palaemon | pugio | | 11 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Marsh Grass Shrimp | Palaemon | vulgaris | | 2 | Palaemonidae | Decapoda | Malacostraca | Animalia |
| Delicate Stilt Crab | Palicus | gracilis | | 0 | Palicidae | Decapoda | Malacostraca | Animalia |
| Bristled Longbeak | Dichelopandalus | leptocerus | | 0 | Pandalidae | Decapoda | Malacostraca | Animalia |
| Golden Shrimp | Plesionika | martia | | 0 | Pandalidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Plesionika | tenuipes | | 0 | Pandalidae | Decapoda | Malacostraca | Animalia |
| Say's Mud Crab | Dyspanopeus | sayi | | 2 | Panopeidae | Decapoda | Malacostraca | Animalia |
| Gulf Grassflat Crab | Dyspanopeus | texanus | | 0 | Panopeidae | Decapoda | Malacostraca | Animalia |
| Flat-backed Mud Crab | Eurypanopeus | depressus | | 6 | Panopeidae | Decapoda | Malacostraca | Animalia |
| Smooth mud Crab | Hexapanopeus | angustifrons | | 1 | Panopeidae | Decapoda | Malacostraca | Animalia |
| Atlantic Mud Crab | Panopeus | herbstii | | 8 | Panopeidae | Decapoda | Malacostraca | Animalia |
| Harris's Mud Crab | Rhithropanopeus | harrisii | | 91 | Panopeidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Parapagurus | pilosimanus | | 0 | Parapaguridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Sympagurus | pictus | | 0 | Parapaguridae | Decapoda | Malacostraca | Animalia |
| Smooth Elbow Crab | Heterocrypta | granulata | | 0 | Parthenopidae | Decapoda | Malacostraca | Animalia |
| Spinous Elbow Crab | Platylambrus | pourtalesii | | 0 | Parthenopidae | Decapoda | Malacostraca | Animalia |
| Northern Brown Shrimp | Farfantepenaeus | aztecus | | 17 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Pink Shrimp | Farfantepenaeus | duorarum | | 0 | Penaeidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Hadropenaeus | modestus | | 0 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Northern White Shrimp | Litopenaeus | setiferus | | 25 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Deep Water Rose Shrimp | Parapenaeus | politus | | 0 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Pink-speckled Shrimp | Penaeopsis | serrata | | 0 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Rough-necked Shrimp | Rimapenaeus | constrictus | | 2 | Penaeidae | Decapoda | Malacostraca | Animalia |
| Sand-dollar Pea Crab | Dissodactylus | mellitae | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| Tube Pea Crab | Pinnixa | chaetopterana | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pinnixa | cylindrica | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pinnixa | retinens | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| No Common Name | Pinnixa | sayana | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| Squatter Pea Crab | Tumidotheres | maculatus | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| Oyster Pea Crab | Zaops | ostreum | | 0 | Pinnotheridae | Decapoda | Malacostraca | Animalia |
| Cryptic Teardrop Crab | Pelia | mutica | | 0 | Pisidae | Decapoda | Malacostraca | Animalia |
| Inflated Spiny Crab | Rochinia | crassa | | 0 | Pisidae | Decapoda | Malacostraca | Animalia |
| Thorned Spiny Crab | Rochinia | tanneri | | 0 | Pisidae | Decapoda | Malacostraca | Animalia |
| Olive-pit Porcelain Crab | Euceramus | praelongus | | 1 | Porcellanidae | Decapoda | Malacostraca | Animalia |
| Eastern Tube Crab | Polyonyx | gibbesi | | 0 | Porcellanidae | Decapoda | Malacostraca | Animalia |
| Striped Porcelain Crab | Porcellana | sigsbeiana | | 0 | Porcellanidae | Decapoda | Malacostraca | Animalia |
| Speckled Swimming Crab | Arenaeus | cribrarius | | 2 | Portunidae | Decapoda | Malacostraca | Animalia |
| Bathyal Swimming Crab | Bathynectes | longispina | | 0 | Portunidae | Decapoda | Malacostraca | Animalia |
| Atlantic Blue Crab | Callinectes | sapidus | | 646 | Portunidae | Decapoda | Malacostraca | Animalia |
| Lesser Blue Crab | Callinectes | similis | | 3 | Portunidae | Decapoda | Malacostraca | Animalia |
| Green Crab | Carcinus | maenas | | 19 | Portunidae | Decapoda | Malacostraca | Animalia |
| Ocellate Lady Crab | Ovalipes | ocellatus | | 80 | Portunidae | Decapoda | Malacostraca | Animalia |
| Coursehand Lady Crab | Ovalipes | stephensoni | | 0 | Portunidae | Decapoda | Malacostraca | Animalia |
| Iridescent Swimming Crab | Portunus | gibbesii | | 0 | Portunidae | Decapoda | Malacostraca | Animalia |
| Sargassum Swimming Crab | Portunus | sayi | | 10 | Portunidae | Decapoda | Malacostraca | Animalia |
| Blotched Swimming Crab | Portunus | spinimanus | | 1 | Portunidae | Decapoda | Malacostraca | Animalia |
| Square-backed Marsh Crab | Armases | cinereum | | 41 | Sesarmidae | Decapoda | Malacostraca | Animalia |
| Purple Marsh Crab | Sesarma | reticulatum | | 3 | Sesarmidae | Decapoda | Malacostraca | Animalia |
| Royal Red Shrimp | Pleoticus | robustus | | 0 | Solenoceridae | Decapoda | Malacostraca | Animalia |
| Coastal Mud Shrimp | Upogebia | affinis | | 1 | Upogebiidae | Decapoda | Malacostraca | Animalia |
| Chinese Mitten Crab | Eriocheir | sinensis | | 2 | Varunidae | Decapoda | Malacostraca | Animalia |
| Asian Shore Crab | Hemigrapsus | sanguineus | | 13 | Varunidae | Decapoda | Malacostraca | Animalia |
| No Common Name | Cyathura | burbancki | | 1 | Anthuridae | Isopoda | Malacostraca | Animalia |
| No Common Name | Cyathura | polita | | 5 | Anthuridae | Isopoda | Malacostraca | Animalia |
| No Common Name | Armadillidium | nasatum | | 109 | Armadillidiidae | Isopoda | Malacostraca | Animalia |
| Common Pill Bug | Armadillidium | vulgare | | 88 | Armadillidiidae | Isopoda | Malacostraca | Animalia |
| Curly Woodlouse | Cylisticus | convexus | | 8 | Cylisticidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Anilocra | acuta | | 2 | Cymothoidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Livoneca | redmanii | | 13 | Cymothoidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Nerocila | lanceolata | | 1 | Cymothoidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Olencira | praegustator | | 2 | Cymothoidae | Isopoda | Malacostraca | Animalia |
| Common Driftclinger | Armadilloniscus | ellipticus | | 1 | Detonidae | Isopoda | Malacostraca | Animalia |
| Wharf Roach | Ligia | exotica | | 167 | Ligiidae | Isopoda | Malacostraca | Animalia |
| Eastern Rockslater | Ligidium | elrodii | | 1 | Ligiidae | Isopoda | Malacostraca | Animalia |
| European Sowbug | Oniscus | asellus | | 26 | Oniscidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Philoscia | muscorum | | 121 | Philosciidae | Isopoda | Malacostraca | Animalia |
| Common Rough Woodlouse | Porcellio | scaber | | 90 | Porcellionidae | Isopoda | Malacostraca | Animalia |
| Powder Blue Isopod | Porcellionides | pruinosus | | 8 | Porcellionidae | Isopoda | Malacostraca | Animalia |
| Fourtooth Seapill | Sphaeroma | quadridentatum | | 1 | Sphaeromatidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Trachelipus | rathkii | | 131 | Trachelipodidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Haplophthalmus | danicus | | 28 | Trichoniscidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Hyloniscus | riparius | | 7 | Trichoniscidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Trichoniscus | pusillus | | 1 | Trichoniscidae | Isopoda | Malacostraca | Animalia |
| No Common Name | Americamysis | bigelowi | | 1 | Mysidae | Mysida | Malacostraca | Animalia |
| No Common Name | Squilla | empusa | | 2 | Squillidae | Stomatopoda | Malacostraca | Animalia |
| No Common Name | Hargeria | rapax | | 2 | Leptocheliidae | Tanaidacea | Malacostraca | Animalia |
| Fish Louse sp. | Argulus | sp. | | 1 | Argulidae | Arguloida | Maxillopoda | Animalia |
| No Common Name | Diacyclops | palustris | | 1 | Cyclopidae | Cyclopoida | Maxillopoda | Animalia |
| No Common Name | Attheyella | spinipes | | 1 | Canthocamptidae | Harpacticoida | Maxillopoda | Animalia |
| No Common Name | Loxothylacus | panopaei | | 2 | Sacculinidae | Kentrogonida | Maxillopoda | Animalia |
| Berg-salmon Gill Worm | Lernaeenicus | radiatus | | 3 | Pennellidae | Siphonostomatoida | Maxillopoda | Animalia |
| Buoy Barnacle | Dosima | fascicularis | | 6 | Lepadidae | Scalpellomorpha | Thecostraca | Animalia |