Biota
Animalia
Echinodermata
Asterozoa
Ophiuroidea
Echinozoa
Arthropoda
Crustacea
Multicrustacea
Malacostraca
Eumalacostraca
Eucarida
Decapoda
Pleocyemata
Caridea ▪ Natantia [objective synonym]
Peracarida
Amphipoda
Gammaridea
Lysianassoidea
Lysianassidae
Boeckosimus [subjective synonym]▪ Boeckosimus derjugini [objective synonym]
▪ Boeckosimus plautus [objective synonym]
▪ Boeckosimus [subjective synonym]
Ampeliscidae
Phoxocephalidae
Harpiniinae
Harpinia▪ Harpinia gurjanovae [objective synonym]
▪ Harpinia kobjakovae [objective synonym]
▪ Harpinia salebrosa [objective synonym]
Senticaudata
Hadziida
Hadziidira
Hadzioidea
Melitidae
Melita▪ Melita dentata [objective synonym]
▪ Melita quadrispinosa [objective synonym]
▪ Melita formosa [objective synonym]
Corophiida
Corophiidira
Corophioidea
Corophiidae
Corophiinae
Amphilochidea
Amphilochida
Amphilochidira
Amphilochoidea
Cumacea
Leuconidae
Leucon▪ Leucon nasica [objective synonym]
▪ Leucon acutirostris [objective synonym]
▪ Leucon fulvus [objective synonym]
▪ Leucon nasicoides [objective synonym]
▪ Leucon pallidus [objective synonym]
Isopoda
Tanaidacea
Tanaidomorpha
Paratanaoidea
Pseudotanaidae
Pseudotanainae
Pseudotanais
Pseudotanais (Pseudotanais) [objective synonym]▪ Pseudotanais (Pseudotanais) lilljeborgi [objective synonym]
▪ Pseudotanais (Pseudotanais) affinis [objective synonym]
▪ Mysidacea [objective synonym]
Chelicerata
Pycnogonida
Pantopoda
Eupantopodida
Mollusca
Bivalvia
Heterodonta
Euheterodonta
Cardiida
Tellinoidea
Tellinidae
Macominae
Macoma▪ Macoma dexioptera [objective synonym]
▪ Macoma balthica [objective synonym]
▪ Macoma balthica [objective synonym]
Cardioidea
Cardiidae
Clinocardiinae
Clinocardium▪ Clinocardium ciliatum [objective synonym]
▪ Clinocardium californiense [objective synonym]
Cardiinae
Cardium▪ Cardium fasciatum [objective synonym]
▪ Cardium fasciatum [objective synonym]
▪ Cardium edule [objective synonym]
▪ Cardium echinatum [objective synonym]
Lucinida
Thyasiroidea
Adapedonta
Hiatelloidea
Protobranchia
Nuculanida
Nuculanoidea
Nuculida
Nuculoidea
Nuculidae
Nucula▪ Nucula (Nucula) [lexical variant]
▪ Nucula (Pronucula) [objective synonym]
▪ Nucula (Rumptunucula) [lexical variant]
▪ Nucula (Varinucula) [lexical variant]
▪ Nucula tenuis [objective synonym]
▪ Nucula tenuis [objective synonym]
▪ Nucula tenuis [objective synonym]
Pteriomorphia
Mytilida
Mytiloidea
Mytilidae
Gastropoda
Vetigastropoda
Trochoidea
Margaritidae
Margarites▪ Margarites beringensis [subjective synonym]
▪ Margarites striatus [objective synonym]
Caenogastropoda
Neogastropoda
Conoidea▪ Conidae
Mangeliidae
Oenopota▪ Oenopota scalaroides [objective synonym]
▪ Oenopota bicarinata [subjective synonym]
▪ Oenopota decussata [objective synonym]
▪ Turridae
Buccinoidea▪ Neptuneidae [subjective synonym]
Littorinimorpha
Naticoidea
Naticidae
Naticinae
Polinicinae
Lunatia [objective synonym]▪ Lunatia pallida [objective synonym]
▪ Lunatia pallida [objective synonym]
▪ Lunatia [objective synonym]
Rissooidea
Rissoidae▪ Cingula
Rissoa▪ Rissoa interrupta [objective synonym]
▪ Rissoa interrupta [objective synonym]
▪ Rissoa interrupta [objective synonym]
Velutinoidea
Velutinidae
Velutininae
Velutina▪ Velutina conica [objective synonym]
▪ Velutina undata [objective synonym]
▪ Velutina undata [objective synonym]
▪ Velutina laevigata [objective synonym]
▪ Lamellariidae [objective synonym]
Capuloidea
Capulidae
Trichotropis▪ Trichotropis coronata [objective synonym]
▪ Trichotropis borealis [objective synonym]
▪ Trichotropis kroyeri [objective synonym]
▪ Trichotropidae [objective synonym]
[unassigned] Caenogastropoda
Cerithioidea
Turritellidae
Turritellinae
Tachyrhynchus▪ Tachyrhynchus spitzbergensis [subjective synonym]
▪ Tachyrhynchus reticulatis [objective synonym]
Epitonioidea
Epitoniidae
Boreoscala▪ Boreoscala groenlandica [objective synonym]
▪ Boreoscala groenlandica [objective synonym]
Triphoroidea
Newtoniellidae
Eumetulinae
Laskeya [objective synonym]▪ Laskeya arctica [objective synonym]
▪ Laskeya arctica [objective synonym]
▪ Laskeya [objective synonym]
Heterobranchia
Opisthobranchia
Cephalaspidea
Cylichnoidea
Patellogastropoda
Lottioidea▪ Lottidae [objective synonym]
Lottiidae
Testudinalia▪ Testudinalia tessellata [objective synonym]
▪ Testudinalia tessulata [objective synonym]
Acmaeidae
Acmaea▪ Acmaea testudinalis [objective synonym]
▪ Acmaea virginea [objective synonym]
▪ Acmaea rubella [objective synonym]
Polyplacophora
Neoloricata
Chitonida
Chitonina
Chitonoidea
Ischnochitonidae
Ischnochiton▪ Ischnochiton albus [objective synonym]
▪ Ischnochiton albus [objective synonym]
▪ Ischnochiton albus [objective synonym]
Annelida
Polychaeta
Errantia
Phyllodocida
Aphroditiformia▪ Pisionidae [subjective synonym]
Nereidiformia▪ Nereidae [lexical variant]
Phyllodocida incertae sedis
Sphaerodoridae
Sphaerodorum▪ Sphaerodorum sphaerulifer [objective synonym]
▪ Sphaerodorum flavum [subjective synonym]
Ephesia [objective synonym]▪ Ephesia gracilis [objective synonym]
▪ Ephesia peripatus [subjective synonym]
Eunicida
Lumbrineridae
Dorvilleidae
Schistomeringos▪ Schistomeringos caeca [objective synonym]
▪ Schistomeringos rudolphii [objective synonym]
Onuphidae
Onuphinae
Onuphis▪ Onuphis parva [objective synonym]
▪ Onuphis quadricuspis [objective synonym]
▪ Onuphis hyperborea [subjective synonym]
▪ Arabellidae [subjective synonym]
Sedentaria
Scolecida
Maldanidae
Nicomachinae
Paraonidae
Aricidea▪ Aricidea minuta [lexical variant]
▪ Aricidea catherinae [objective synonym]
▪ Aricidea quadrilobata [objective synonym]
Paraonella [objective synonym]▪ Paraonella nordica [objective synonym]
▪ Paraonella nordica [objective synonym]
▪ Paraonella [objective synonym]
▪ Scalibregmidae [objective synonym]
▪ Questidae [subjective synonym]
Canalipalpata
Spionida
Spioniformia
Spionidae
Polydora▪ Polydora quadrilobata [objective synonym]
▪ Polydora caeca [objective synonym]
▪ Polydora caulleryi [objective synonym]
▪ Polydora socialis [objective synonym]
Terebellida
Cirratuliformia
Terebellomorpha
Trichobranchidae
Trichobranchinae
Terebellides▪ Terebellides stroemi [objective synonym]
▪ Terebellides williamsae [subjective synonym]
Pectinariidae
Sabellida
Sabellidae
Sabellinae
Serpulidae
Pomatoceros [subjective synonym]▪ Pomatoceros triqueter [objective synonym]
▪ Pomatoceros triqueter [objective synonym]
▪ Pomatoceros triqueter [objective synonym]
▪ Pomatoceros [subjective synonym]
▪ Pomatoceros [subjective synonym]
▪ Spirorbidae [lexical variant]
Cnidaria
Anthozoa
Hexacorallia
Actiniaria
Enthemonae ▪ Zoanthidea [subjective synonym]
Hydrozoa
Hydroidolina
Leptothecata
Bryozoa
Stenolaemata
Cyclostomatida
Tubuliporina
Plagioeciidae
Rectangulata
Lichenoporidae
Lichenopora▪ Lichenopora crassiuscula [objective synonym]
▪ Lichenopora verrucaria [objective synonym]
▪ Cyclostomata [objective synonym]
Gymnolaemata
Cheilostomatida
Flustrina
Smittinoidea
Bitectiporidae
Lepralielloidea
Calloporoidea
Calloporidae
Buguloidea
Candidae
Scrupocellaria
Scrupocellaria scabra [objective synonym]▪ Scrupocellaria scabra paenulata [objective synonym]
▪ Scrupocellaria scabra paenulata [objective synonym]
▪ Scrupocellaria elongata [objective synonym]
▪ Scrupocellaria elongata [objective synonym]
▪ Scrupocellaria scabra [objective synonym]
▪ Scrupocellaria scabra [objective synonym]
▪ Scrupocellariidae [objective synonym]
Ctenostomatida
Vesicularina
Vesicularioidea
Vesiculariidae
Bowerbankia [objective synonym]▪ Bowerbankia arctica [objective synonym]
▪ Bowerbankia caudata [objective synonym]
▪ Bowerbankia imbricata [objective synonym]
▪ Bowerbankia [objective synonym]
▪ Bowerbankia [objective synonym]
Sipuncula
Sipunculidea
Golfingiida
Golfingiidae
Nephasoma
Nephasoma diaphanes [lexical variant]▪ Nephasoma diaphanes corrugatum [lexical variant]
▪ Nephasoma diaphanes diaphanes [lexical variant]
Golfingia▪ Golfingia margaritacea [lexical variant]
▪ Golfingia vulgaris [objective synonym]
Porifera ▪ Nemertini [objective synonym]
▪ Pogonophora [objective synonym]
▪ Sipunculida [objective synonym]
▪ Nematoda
Plantae
Chromista
Harosa
Heterokonta
Ochrophyta
Phaeista
Limnista
Fucistia
Phaeophyceae
Laminariales
Laminariaceae 
