| Common Name | Scientific Name |
| Phylum Porifera: Sponges | |
| Class Demospongiae | |
| Clathrina cancellata |
| Red Boring Sponge | Cliona celata |
| Desmacella infundibuliformis |
| Yellow Sun Sponge | Halichondria bowerbanki |
| Breadcrumb Sponge | Halichondria panicea |
| Mermaid’s Glove | Haliclona oculata |
| Isodictya deichmannae |
| Isodictya palmata |
| Myxilla incrustans |
| Polymastia boletiformis |
| Spongilla lacustris |
| Stylocordyla borealis |
| Suberites compactus |
| Suberites ficus |
| Tedania suctoria |
| Class Calcarea | |
| Scypha lingua |
| Class Hexactinellida | |
| Sympagella nux |
| Phylum Cnidaria: Corals, Sea Anemones, and Jellyfish | |
| Class Hydrozoa | |
| Cordylophora caspia |
| Aglaophenia latecarinata |
| Aucaulis primarius |
| Calycopsis typa |
| Campanulina panicula |
| Cladocarpus flexilis |
| Eutima mira |
| Ectopleura dumortierii |
| Halammohydra schulzei |
| Margelis carolinensis |
| Physalia physalis |
| Plumularia tenella |
| Ptychogena crocea |
| Stegopoma plicatile |
| Pennaria disticha |
| Hybocodon prolifer |
| Corymorpha pendula |
| Protiara haeckeli |
| Hydractinia echinata |
| Proboscidactyla ornata |
| Nemopsis bachei |
| Tree Hydroid | Eudendrium ramosum |
| Eudendrium dispar |
| Eudendrium carneum |
| Eudendrium capillare |
| Ringed Tubularia | Ectopleura larynx |
| Pink-hearted Hydroid | Ectopleura crocea |
| Oaten Pipes Hydroid | Tubularia indivisa |
| Laodicea undulata |
| Tima formosa |
| Clytia hemisphaerica |
| Clytia gracilis |
| Laomedea flexuosa |
| Orthopyxis integra |
| Obelia commissuralis |
| Obelia dichotoma |
| Obelia geniculata |
| Obelia longissima |
| Obelia bidentate |
| Herring Bone Hydroid | Halecium halecinum |
| Halecium articulosum |
| Halecium delicatulum |
| Dynamena pumila |
| Dynamena disticha |
| Sertularia argentea |
| Sertularia cupressina |
| Hydrallmania falcata |
| Nemertesia antennina |
| Sertularella tenella |
| Gonionemus vertens |
| Class Scyphozoa: True Jellyfish | |
| Moon Jelly | Aurelia aurita |
| Lion’s Mane Jellyfish | Cyanea capillata |
| Manania auricula |
| Pelagia cyanella |
| Class Anthozoa: Corals and Sea Anemones | |
| |
| Acanella arbuscula |
| Actinauge longicornis |
| Actinauge verrillii |
| Actinostola callosa |
| Adamsia sociabilis |
| Anemonia sargassensis |
| Antholoba perdix |
| Northern Star Coral | Astrangia poculata |
| Deeplet Sea Anemone | Bolocera tuediae |
| Caryophyllia communis |
| Ceriantheopsis americana |
| Chondrophellia coronata |
| Dasmosmilia lymani |
| Ghost Anemone | Diadumene leucolena |
| Orange-striped Green Sea Anemone | Diadumene lineata |
| Edwardsia elegans |
| Lined Anemone | Edwardsiella lineata |
| Epizoanthus norvegicus |
| Epizoanthus paguriphilus |
| Epizoanthus papillosus |
| Flabellum alabastrum |
| Flabellum macandrewi |
| Fungiacyathus symmetricus |
| Gersemia fruticosa |
| Sea Strawberry | Gersemia rubiformis |
| Halcampa duodecimcirrata |
| Halipteris finmarchica |
| Haloclava producta |
| Kophobelemnon scabrum |
| Lepidisis caryophyllia |
| Metridium dianthus |
| Metridium senile |
| Paracalliactis consors |
| Pennatula aculeata |
| Hump Coral | Porites porites |
| Ptilella grandis |
| Stephanauge acanellae |
| Stephanauge nexilis |
| Stephanauge spongicola |
| Umbellula lindahli |
| Mottled Anemone | Urticina crassicornis |
| Phylum Ctenophora: Comb Jellies | |
| Sea Gooseberry | Pleurobrachia pileus |
| Sea Walnut | Mnemiopsis leidyi |
| Beroe cucumis |