Marine invertebrates of Puget Sound
The following is an alphabetical list of marine invertebrates occurring in Puget Sound and adjacent regions. It is taken from the book Keys to the Marine Invertebrates of Puget Sound, the San Juan Archipelago, and Adjacent Regions by Eugene N. Kozloff. This list is provided with permission of the author.
Abarenicola claparedi subsp. oceanica
Abarenicola claparedi subsp. vagabunda
Abarenicola pacifica
Abietinaria anguina
Abietinaria filicula
Abietinaria pulchra
Abietinaria variabilis
Abietinaria spp.
Abra profundorum
Abraliopsis felis
Abyssocucumis albatrossi
Acanella sp.
Acanthamunnopsis milleri
Acanthascus platei
Acanthina spirata
Acanthephyra curtirostris
Acanthodoris armata
Acanthodoris atrogriseata
Acanthodoris brunnea
Acanthodoris hudsoni
Acanthodoris nanaimoensis
Acanthodoris pilosa
Acantholithodes hispidus
Telacanthomysis columbiae
Acarnus erithacus
Accedomoera
Accedomoera vagor
Acerotisa alba
Acetabulosoma kozloffi
Acharax johnsoni
Achelia alaskensis
Achelia chelata
Achelia discoidea
Achelia echinata
Achelia gracilipes
Achelia latifrons
Acidostoma sp.
Acila castrensis
Acmaea mitra
Acrocirrus columbianus
Acrocirrus heterochaetus
Acrocirrus occipitalis
Adalaria sp.
Admete californica
Admete gracilior
Adocia gellindra
Adocia spp.
Adula californiensis
Adula diegensis
Adula falcata
Aega symmetrica
Aegina citrea
Aegires albopunctatus
Aeolidia papillosa
Aequorea victoria
Aeropsis fulva
Aetea spp.
Aforia circinata
Aglaja ocelligera
Aglantha digitale
Aglaophamus rubella subsp. anops
Aglaophenia latirostris
Aglaophenia struthionides
Aglaophenia spp.
Entodesma saxicola
Aktedrilus oregonensis
Alciopa reynaudii
Alcyonidium pedunculatum
Alcyonidium polyoum
Alcyonium sp.
Alderia modesta
Alderina brevispina
Aldisa albomarginata
Aldisa cooperi
Aldisa sanguinea
Aldisa tara
Alepas pacifica
Algamorda subrotundata
Alia carinata
Alia gausapata
Alia permodesta
Alia tuberosa
Alienacanthomysis macropsis
Allocentrotus fragilis
Allogaussia recondita
Alloniscus perconvexus
Stylantheca petrograpta
Stylaster porphyra
Stylaster venustus
Allopora verrillii
Allorchestes
Allorchestes angusta
Allorchestes bellabella
Alvania carpenteri
Alvania compacta
Alvania sanjuanensis
Amaeana occidentalis
Amage anops
Amauropsis purpurea
Amblyops abbreviata
Amblyosyllis sp.
Americanaplana fernaldi
Ammothea hilgendorfi
Ammothella tuberculata
Ammothella sp.
Ampelisca agassizi
Ampelisca brevisimulata
Ampelisca careyi
Ampelisca cristata
Ampelisca fageri
Ampelisca hancocki
Ampelisca lobata
Ampelisca pugetica
Ampelisca unsocalae
Amperima rosea
Amperima sp.
Ampharete acutifrons
Ampharete finmarchica
Ampharete goesi subsp. brazhnikovi
Ampharete goesi subsp. goesi
Ampharete labrops
Ampheraster chiroplus
Ampheraster marianus
Amphichaeta sp.
Amphicteis glabra
Amphicteis mucronata
Amphicteis scaphobranchiata
Amphilepis patens
Amphilochus litoralis
Amphilochus neapolitanus
Amphilochus picadurus
Amphinema platyhedos
Amphiodia occidentalis
Amphiodia periercta
Amphiodia urtica
Amphiophiura bullata subsp. pacifica
Stegophiura ponderosa
Amphiophiura superba
Amphioplus macraspis
Amphioplus strongyloplax
Amphipholis pugetana
Amphipholis squamata
Amphiporus angulatus
Amphiporus bimaculatus
Amphiporus cruentatus
Amphiporus formidabilis
Amphiporus imparispinosus
Amphiporus rubellus
Amphiporus tigrinus
Amphisamytha bioculata
Amphissa columbiana
Amphissa reticulata
Amphissa versicolor
Amphitrite cirrata
Amphiura carchara
Amphiura diomedeae
Amphiura polyacantha
Ampithoe dalli
Ampithoe lacertosa
Ampithoe plumulosa
Ampithoe sectimanus
Ampithoe simulans
Ampithoe valida
Clathria brepha
Anaata spongigartina
Anatoma baxteri
Anatoma crispata
Ancula pacifica
Angulosaccus tenuis
Anisodoris lentiginosa
Anisodoris nobilis
Anisogammarus pugettensis
Anobothrus gracilis
Anonyx laticoxae
Anonyx lilljeborgi
Anoplodactylus erectus
Anoplodactylus viridintestinalis
Anoplodium hymanae
Antedon sp.
Anteliaster coscinactis
Anteliaster megatretus
Anthessius nortoni
Antho graceae
Anthopleura artemisia
Anthopleura elegantissima
Anthopleura xanthogrammica
Anthoptilum grandiflorum
Anthothela pacifica
Bylgides macrolepidus
Antipathes sp.
Antiplanes thalea
Spirotropis perversa
Antiplanes voyi
Aoroides columbiae
Aoroides exilis
Aoroides inermis
Aoroides intermedius
Aoroides spinosus
Aphrocallistes vastus
Aphrodita japonica
Aphrodita longipalpa
Aphrodita negligens
Aphrodita parva
Aphrodita refulgida
Apistobranchus ornatus
Apistobranchus tullbergi
Aplidium arenatum
Aplidium californicum
Aplidium glabrum
Aplidium propinquum
Aplidium solidum
Aplidium sp.
Aplysilla glacialis
Aplysilla polyraphis
Aplysiopsis smithi
Apomatus geniculatus
Apomatus timmsii
Arabella iricolor
Arabella semimaculata
Archaeomysis grebnitzkii
Archidistoma molle
Archidistoma psammion
Archidistoma ritteri
Archidistoma sp.
Archidoris montereyensis
Archidoris odhneri
Architeuthis japonica
Arctomelon stearnsii
Arctonoe fragilis
Arctonoe pulchra
Arctonoe vittata
Arenicola marina
Argeia pugettensis
Argilloecia conoidea
Argilloecia cylindrica
Arginula bella
Argis alaskensis
Argis crassa
Argis dentata
Argis lar
Argis levior
Argissa hamatipes
Argulus borealis
Argulus pugettensis
Arhynchite pugettensis
Aricidea assimilis
Aricidea lopezi
Aricidea minuta
Aricidea neosuecica
Aricidea quadrilobata
Aricidea ramosa
Aricidea wassi
Aristias pacificus
Armadillidium vulgare
Armadilloniscus holmesi
Armandia brevis
Armina californica
Hymenacora
Artacama conifera
Arthrophryxus beringanus
Asabellides lineata
Asabellides sibirica
Asbestopluma occidentalis
Ascidia callosa
Ascidia ceratodes
Ascidia paratropa
Ascidia prunum
Asclerocheilus beringianus
Assiminea californica
Astarte compacta
Astarte undata
Astarte esquimalti
Asterina miniata
Asteronyx loveni
Asteropella sp.
Asteroschema sublaeve
Asthenactis fisheri
Lithopoma gibberosa
Astrocles actinodetus
Astrolirus panamensis
Asychis biceps
Asychis disparidentata
Asychis lacera
Asychis similis
Atlanta gaudichaudi
Atylus collingi
Atylus levidensus
Atylus tridens
Aulactinia incubans
Aurelia aurita
Aurelia limbata
Austrorhynchus californicus
Austrorhynchus pacificus
Proceraea cornuta
Proceraea fasciata
Autolytus magnus
Proceraea prismatica
Autolytus trilineatus
Autolytus verrilli
Axinella sp.
Axinopsida serricata
Axinulus redondoensis
Calocarides spinulicauda
Axiothella rubrocincta
Clathria originalis
Aktedrilus labeosus
Baeonectes improvisus
Balanus balanus
Balanus crenatus
Balanus glandula
Balanus improvisus
Balanus nubilus
Balanus rostratus
Balcis columbiana
Balcis montereyensis
Balgetia pacifica
Balticina californica
Balticina septentrionalis
Bankia setacea
Barantolla americana
Barentsia benedeni
Barentsia gracilis
Barentsia misakiensis
Barentsia ramosa
Barentsia robusta
Barleeia acuta
Barleeia haliotiphila
Barleeia subtenuis
Barnea subtruncata
Baseodiscus princeps
Bathyarca nucleator
Bathybembix bairdii
Bathycrinus pacificus
Bathycuma
Bathydrilus litoreus
Bathydrilus torosus
Bathyleberis sp.
Bathymedon flebilis
Bathymedon pumilus
Bathypera ovoida
Batillaria zonalis
Batillipes mirus
Bentheogennema borealis
Bentheogennema burkenroadi
Benthoctopus abruptus
Benthoctopus profundum
Benthodytes incerta
Benthodytes sanguinolenta
Benthopecten acanthonotus
Benthopecten claviger
Benthopecten mutabilis
Beringius crebricostatus
Beringius eyerdami
Beringius kennicotti
Beroe abyssicola
Beroe cucumis
Beroe sp.
Berryteuthis anonychus
Berryteuthis magister
Berthella californica
Betaeus harrimani
Betaeus setosus
Betapista dekkerae
Bicidium aequoreae
Bicrisia edwardsiana
Biemna rhadia
Bimeria spp.
Bittium attenuatum
Bittium eschrichtii
Bittium munitum
Bolinopsis infundibulum
Boltenia echinata
Boltenia villosa
Bonneviella spp
Bopyroides hippolytes
Botryllus sp
Bougainvillia principis
Bougainvillia muscus
Bougainvillia superciliaris
Bougainvillia spp.
Bowerbankia gracilis
Brachionus plicatilis
Brada sachalina
Brada villosa
Branchellion lobata
Branchiomaldane vincenti
Brania brevipharyngea
Bresslauilla relicta
Briarosaccus callosus
Brinkmanniella palmata
Brisaster townsendi
Hymenodiscus exilis
Bruzelia tuberculata
Buccinum aleuticum
Volutopsion castaneum
Buccinum diplodetum
Buccinum glaciale
Buccinum planeticum
Buccinum plectrum
Buccinum scalariforme
Buccinum strigillosum
Bugula californica
Bugula cucullifera
Bugula pacifica
Bugula pugeti
Buskia nitens
Byblis millsi
Byblis veleronis
Bythotiara depressa
Bythotiara huntsmani
Caberea boryi
Caberea ellisii
Cadlina flavomaculata
Cadlina luteomarginata
Cadlina modesta
Gadila aberrans
Cadulus californicus
Cadulus tolmiei
Caesaromysis hispida
Calastacus stilirostris
Calcigorgia spiculifera
Calinaticina oldroydii
Neotrypaea californiensis
Neotrypaea gigas
Callianopsis goniophthalma
Calliobdella knightjonesi
Calliopius spp.
Calliostoma annulatum
Calliostoma bernardi
Calliostoma canaliculatum
Calliostoma ligatum
Calliostoma platinum
Calliostoma variegatum
Calliotropis carlotta
Calliotropis ceratophora
Callistochiton crassicostatus
Callogorgia kinoshitae
Callopora armata
Callopora circumclathrata
Callopora horrida
Calocaris investigatoris
Calocarides quinqueseriatus
Calycella spp
Calycopsis nematophora
Calyptogena gigas
Phreagena kilmeri
Calyptogena pacifica
Calyptraea fastigiata
Campanularia rittefi
Campanularia spp.
Campylaspis
Campylaspis hartae
Campylaspis rubromaculata
Campylaspis rufa
Campyloderes sp
Cancellaria crawfordiana
Cancer antennarius
Romaleon branneri
Cancer gracilis
Cancer magister
Cancer oregonensis
Cancer productus
Capheira mollis
Capitella capitata
Caprella alaskana
Caprella augusta
Caprella borealis
Caprella californica
Caprella drepanochir
Caprella equilibra
Caprella ferrea
Caprella gracilior
Caprella greenleyi
Caprella incisa
Caprella irregularis
Caprella laeviuscula
Caprella mendax
Caprella pilidigitata
Caprella pustulata
Caprella rudiuscula
Caprella striata
Caprella ungulina
Caprella verrucosa
Carcinonemertes epialti
Carcinonemertes errans
Cardiomya californica
Cardiomya curta
Cardiomya oldroydi
Cardiomya pectinata
Cardiomya planetica
Carenzia inermis
Cargoa vancouverensis
Carinaria cristata
Carinaria japanica
Carinaria lamarcki
Carinaria latidens
Carinoma mutabilis
Caryophyllia alaskensis
Catablema mullicirrata
Catablema nodulosa
Catriona columbiana
Caulibugula californica
Caulibugula ciliata
Caulibugula occidentalis
Caulleriella alata
Caulleriella hamata
Cauloramphus brunea
Cauloramphus echinus
Cauloramphus spiniferum
Cavolinia gibbosa
Cavolinia tridentata
Cecina manchurica
Cellaria diffusa
Cellaria mandibulata
Cephalothrix pacifica
Ceradocus spinicaudus
Ceramaster arcticus
Ceramaster clarki
Ceramaster japonicus
Ceramaster patagonicus
Ceraplectana trachyderma
Ceratocephale loveni
Ceratopera axi
Ceratopera pilifera
Ceratophysa valvaecristata
Ceratostoma foliatum
Ocenebra inornata
Cercops compactus
Cerebratulus albifrons
Cerebratulus californiensis
Cerebratulus herculeus
Cerebratulus longiceps
Cerebratulus marginatus
Cerebratulus montgomeryi
Cerebratulus occidentalis
Cerithiopsis columna
Cerithiopsis signa
Cerithiopsis stejnegeri
Cestoplana sp
Chaetonotus testiculophorus
Chaetopleura gemma
Chaetopterus variopedatus
Chaetozone acuta
Chaetozone setosa
Chaetozone spinosa
Chama arcana
Chapperiella condylata
Chapperiella patula
Chartella membranaceotruncata
Cheilonereis cyclurus
Cheilopora praelonga
Cheirimedeia macrocarpa subsp. americana
Cheirimedeia macrocarpa subsp. similicarpa
Cheirimedeia macrocarpa subsp. zotea
Chelophyes appendiculata
Chelura terebrans
Chelysoma columbianum
Chelysoma productum
Chevroderma whitlatchi
Childia groenlandica
Chionoecetes angulatus
Chionoecetes bairdi
Chiridota albatrossii
Chiridota nanaimensis
Chiroteuthis calyx
Chlamys behringiana
Chlamys hastata
Chlamys jordani
Chlamys rubida
Chloeia entypa
Chloeia pinnata
Chone aurantiaca
Chone duneri
Paradialychone ecaudata
Chone infundibuliformis
Chone magna
Chone mollis
Heterochone calyx
Heterochone tenera
Chorilia longipes
Choristes carpenteri
Choristes coani
Chrysaora fuscescens
Chrysaora melanaster
Chrysopetalum occidentale
Chthamalus
Chthamalus dalli
Cidarina cidaris
Ciliocincta sabellariae
Ciocalypta penicillus
Ciona intestinalis
Circeis armoricana
Circeis spirillum
Cirolana harfordi
Cirratulus cirratus
Cirratulus spectabilis
Cirriformia spirabranchia
Cirrophorus branchiatus
Cirrophorus lyra
Cirroteuthis muelleri
Cladocarpus spp
Cladocarpus vancouverensis
Cladonema californicum
Guancha blanca
Clathrina coriacea
Clathrina spp.
Clathromangelia interfossa
Clausidium vancouverense
Clavelina huntsmani
Clavelina sp.
Clavopora occidentalis
Clavularia morbesbii
Clinocardium blandum
Clinocardium californiense
Clinocardium ciliatum
Clinocardium blandum
Clinocardium nuttallii
Clio polita
Clio pyramidata
Clio recurva
Cliona argus
Cliona californiana
Cliona limacina
Cliona lobata
Cliona sp.
Cliothosa quadrata
Clistosaccus paguri
Clymenella torquata
Clymenura columbiana
Clytia hemisphaerica
Clytia spp.
Cnemidocarpa finmarkiensis
Coboldus sp
Cocculina cowani
Codonellina cribriformis
Coelogynopora cochleare
Coelogynopora falcaria
Coelogynopora frondifera
Coelogynopora nodosa
Coelogynopora scalpri
Collastoma kozloffi
Collastoma pacifica
Cribrilaria radiata
Colobomatus kyphosus
Colossendeis angusta
Colossendeis colossea
Colossendeis tenera
Colotrachelus careyi
Columbaora cyclocoxa
Columbiaemysis ignota
Colurostylis
Colurostylis occidentalis
Colus adonis
Latisipho hallii
Neptunea brevicauda
Compsomyax subdiaphana
Conchocele bisecta
Thyasira tricarinata
Conchoderma auritum
Conchoderma virgatum
Alacia minor
Conchoecia elegans
Conchoecia spinirostris
Conocyema
Conocyema deca
Conopeum reticulum
Cooperella subdiaphana
Copidozoum protectum
Copidozoum tenuirostre
Corallimorphus sp
Corambe pacifica
Cordagalma ordinata
Cordylophora caspia
Corella inflata
Corella willmeriana
Corolla spectabilis
Coronopharynx pusillus
Coronula diadema
Coronula reginae
Corophium
Corophium acherusicum
Corophium baconi
Corophium brevis
Corophium crassicorne
Corophium insidiosum
Corophium salmonis
Corophium spinicorne
Corymorpha sp
Cossura longocirrata
Cossura soyeri
Costazia costazi
Costazia robertsoniae
Costazia ventricosa
Crangon alaskensis
Crangon alba
Crangon dalli
Crangon franciscorum
Crangon franciscorum subsp. angustimana
Crangon hondi
Crangon nigricauda
Crania californica
Craniella spinosa
Craniella villosa
Crassicardia crassidens
Crassonemertes robusta
Crassostrea gigas
Crassostrea virginica
Craterobrisinga synaptoma
Crenella decussata
Crepidula adunca
Crepidula dorsata
Crepidula fornicata
Crepidula nummaria
Crepidula perforans
Creseis virgula
Cribrilina annulata
Cribrilina corbicula
Cribrinopsis fernaldi
Cribrinopsis williamsi
Crimora coneja
Crisia maxima
Crisia occidentalis
Crisia pugeti
Crisia serrulata
Crisidia cornuta
Crossaster borealis
Crossaster papposus
Crossota sp.
Crucigera irregularis
Crucigera zygophora
Cryptaster sp
Cryptobranchia concenirica
Cryptochiton stelleri
Cryptolaria spp
Cryptolepas rachianecti
Cryptolithodes sitchensis
Cryptolithodes typicus
Cryptomya californica
Cryptonemertes actinophila
Cryptopeltaster lepidonotus
Cryptosula pallasiana
Ctenodiscus crispatus
Ctenodrilus serratus
Cucumaria fallax
Cucumaria frondosa subsp. japonica
Pseudocnus lubrica
Cucumaria miniata
Cucumaria piperata
Cucumaria pseudocurata
Cucumaria vegae
Cumanotus beaumonti
Cumella
Cumella vulgaris
Cumingia californica
Cunina sp.
Cuspidaria apodema
Cuspidaria cowani
Cuspidaria filatovae
Cuspidaria glacialis
Cuspidaria variola
Cuthona abronia
Cuthona albocrusta
Cuthona cocoachroma
Cuthona concinna
Cuthona divae
Cuthona nana
Cuthona pustulata
Cyamus boopis
Cyamus catodontis
Cyamus ceti
Cyamus kessleri
Cyamus sp.
Cyanea capillata
Cyathoceras quaylei
Cyathura carinata
Cyclaspis
Cyclocardia crebricostata
Cyclocardia ventricosa
Delectopecten vancouverensis
Cyclopecten bistriatus
Cyclopecten carlottensis
Cyclopecten knudseni
Cyclopecten squamiforis
Cyclostremella concordia
Cylichna alba
Cylichna attonsa
Cylichnella cerealis
Acteocina culcitella
Acteocina culcitella exima
Acteocina harpa
Cymadusa uncinata
Cymodoce japonica
Cyphocaris challengeri
Cystocrepis setigera
Cystodytes lobatus
Cytharella victoriana
Cythere alveolivalva
Cythere lutea
Cythere unifalcata
Cythereis arachis
Cythereis aurita
Acanthocythereis dunelmensis
Cythereis filoplumosa
Cythereis glauca
Patagonacythere longiducta
Cythereis montereyensis
Cythereis pacifica
Procythereis polita
Cythereis serridentata
Cytherois pusilla
Hemicytherura clathrata
Dacrydium pacificum
Dacrydium rostriferum
Dakaria dawsoni
Dakaria ordinata
Dakaria pristina
Decamastus gracilis
Delectopecten randolphi
Delectopecten vancouverensis
Dendraster excentricus
Dendrobeania curvirostrata
Dendrobeania laxa
Dendrobeania lichenoides
Dendrobeania longispinosa
Dendrobeania murrayana
Dendrochiton flectens
Lepidochitona semilirata
Dendrodoa abbotti
Dendronotus albopunctatus
Dendronotus albus
Dendronotus dalli
Dendronotus diversicolor
Dendronotus frondosus
Dendronotus iris
Dendronotus rufus
Dendronotus subramosus
Dendropoma lituella
Dentalium agassizi
Antalis pretiosa
Dentalium rectius
Dermasterias imbricata
Desmophyes annectens
Desmophyes villafrancae
Desmote inops
Detonella papillicornis
Deutella californica
Dexamonica reduncans
Diacria trispinosa
Diaperoecia californica
Diaperoecia intermedia
Diaperoecia johnstoni
Diaphana brunnea
Diaphorodoris lirulatocauda
Diarthrodes cystoecus
Diasterope sp.
Diastylis
Diastylis alaskensis
Diastylis aspera
Diastylis bidentata
Diastylis dalli
Diastylis dawsoni
Diastylis nucella
Diastylis paraspinulosa
Diastylis pellucida
Diastylis rathkei
Diastylis umatillensis
Diastylopsis
Diatomovora amoena
Diaulula sandiegensis
Clathria asodes
Dicyema
Dicyema apollyoni
Dicyemennea
Dicyemennea abreida
Dicyemennea brevicephala
Dicyemennea brevicephaloides
Dicyemennea filiformis
Didemnum albidum
Didemnum carnulentum
Dimophyes arctica
Dinophilus kincaidi
Diodora aspera
Diopatra ornata
Diphasia spp.
Dipleurosoma typicum
Diplodonta impolita
Diplodonta orbella
Diplopteraster multipes
Diplosolen obelium
Diplosoma macdonaldi
Dipsacaster anoplus
Dipsacaster borealis
Dirona albolineata
Dirona aurantia
Dirona picta
Disacanthomysis dybowskii
Discocytis canadensis
Discodoris heathi
Nootkadrilus longisetosus
Discorsopagurus schmitti
Discurria insessa
Disporella fimbriata
Disporella separata
Distaplia occidentalis
Distaplia smithi
Diurodrilus ankeli
Dodecaceria concharum
Dodecaceria fewkesi
Doridella steinbergae
Critomolgus ptilosarci
Doris odonoghuei
Doryporella alcicornis
Doto amyra
Doto columbiana
Doto kya
Dougaloplus gastracanthus
Drilonereis falcata subsp. minor
Drilonereis longa
Drilonereis nuda
Dryodora glandiformis
Thyonidium drummondii
Dulichia rhabdoplastis
Dulichia spp.
Duplacrorhynchus major
Amphisbetia operculata
Dynamena spp.
Dynamenella benedicti
Dynamenella glabra
Dynamenella sheareri
Dyopedos spp.
Dysidea fragilis
Dysponetus pygmaeus
Dytaster gilberti
Echiniscoides sigismundi
Echinocrepis rostrata
Echinoderes kozloffi
Echinoderes pennaki
Echinoderes sp.
Echiurus echiurus subsp. alaskanus
Ectomyxilla parasitica
Edwardsia sipunculoides
Eirene mollis
Elasmopus spp.
Elassochirus cavimanus
Elassochirus gilli
Elassochirus tenuimanus
Electra crustulenta arctica
Ellisina levata
Elysia hedgpethi
Emerita analoga
Empleconia vaginata
Emplectonema gracile
Emplectonema purpuratum
Enchytraeus kincaidi
Enchytraeus multiannulatus
Enteroxenos parastichopoli
Entodesma pictum
Eobrolgus spinosus
Eogammarus confervicolus
Eogammarus oclairi
Eohaustorius
Eohaustorius brevicuspis
Eohaustorius estuarius
Eohaustorius sawyeri
Eohaustorius sencillus
Eohaustorius washingtonianus
Eperetmus typus
Epiactis fernaldi
Epiactis lisbethae
Epiactis prolifera
Epiactis ritteri
Epidiopatra hupferiana subsp. monroi
Epizoanthus scotinus
Eremicaster crassus
Eremicaster pacificus
Ericthonius
Ericthonius brasiliensis
Ericthonius difformis
Errinopora pourtalesii
Eteone californica
Eteone longa
Eteone pacifica
Eteone spetsbergensis
Eteone tuberculata
Eualus avinus
Eualus barbatus
Eualus berkeleyorum
Eualus biunguis
Eualus fabricii
Eualus lineatus
Eualus macrophthalmus
Eualus pusiolus
Eualus suckleyi
Eualus townsendi
Eubranchus misakiensis
Eubranchus olivaceus
Eubranchus rustyus
Eubranchus sanjuanensis
Euchone analis
Euchone hancocki
Euchone incolor
Euclymene reticulata
Euclymene sp.
Euclymene zonalis
Eudendrium californicum
Eudendrium spp.
Eudistylia catharinae
Eudistylia polymorpha
Eudistylia vancouveri
Eudorella
Eudorella pacifica
Eudorella tridentata
Eudorellopsis
Eudorellopsis integra
Euherdmania claviformis
Eukrohnia hamata
Eulalia bilineata
Eulalia levicornuta
Eumida longicornuta
Sige macroceros
Bergstroemia nigrimaculata
Pterocirrus parvoseta
Eulalia quadrioculata
Eulalia sanguinea
Eulalia tubiformis
Eulalia viridis
Melanella micans
Hypermastus randolphi
Polygireulima rutila
Melanella thersites
Halichondria sitiens
Eunice aphroditois
Eunice valens
Eunoe depressa
Eunoe nodosa
Eunoe oerstedi
Eunoe senta
Eunoe uniseriata
Eupentacta pseudoquinquesemita
Eupentacta quinquesemita
Euphausia pacifica
Euphilomedes carcharodonta
Euphilomedes longiseta
Euphilomedes producta
Euphrosine arctia
Euphrosine bicirrata
Euphrosine heterobranchia
Euphrosine hortensis
Euphysa flammea
Euphysa japonica
Euphysa ruthae
Euphysa tentaculata
Euphysa spp.
Euplokamis dunlapae
Eupolymnia heterobranchia
Eurylepta aurantiaca
Eurylepta leoparda
Integripelta bilabiata
Sergestes similis
Eusirus spp.
Eusyllis blomstrandi
Eusyllis japonica
Eusyllis magnifica
Eutonina indicans
Euzonus mucronata
Euzonus williamsi
Evadne nordmanni
Evasterias troscheli
Exacanthomysis alaskensis
Exacanthomysis davisi
Excirolana chiltoni
Excirolana linguifrons
Excirolana vancouverensis
Exilioidea rectirostris
Exogone lourei
Exogone molesta
Exogone verugera
Exosphaeroma amplicauda
Dynamenella perforata
Exosphaeroma inornata
Exosphaeroma rhomburum
Eyakia robustus
Fabia subquadrata
Bansella oregonica
Fabricia sabella
Fabriciola berkeleyi
Fallacohospes inchoatus
Farranula
Fartulum occidentale
Fenestrulina malusii
Fenestrulina malusii subsp. umbonata
Filellum serpens
Filellum spp.
Filicrisia franciscana
Filifascigera fasciculata
Fiona pinnata
Fissurellidea bimaculata
Puncturella pacifica
Flabelligera affinis
Flabellina trophina
Flabellina iodinea
Flabellina pricei
Flabellina trilineata
Flabellina verrucosa
Florometra serratissima
Flustrellidra corniculata
Earleria
Earleria purpurea
Forcepia japonica
Foxiphalus cognatus
Foxiphalus major
Foxiphalus obtusidens
Foxiphalus similis
Freemania litoricola
Freyella microplax
Freyellaster fecundus
Fritillaria borealis
Funiculina parkeri
Fusinus barbarensis
Fusinus harfordii
Fusinus monksae
Fusitriton oregonensis
Galathealinum brachiosum
Galiteuthis phyllura
Gammaridacarus orchestoideae
Gammaropsis ellisi
Gammaropsis shoemakeri
Gammaropsis spinosa
Gammaropsis thompsoni
Gari californica
Garveia annulata
Rhizorhagium roseum
Gastrodelphys
Gastropteron pacificum
Gattyana ciliata
Gattyana cirrhosa
Gattyana iphionelloides
Gattyana treadwelli
Gemelliporella inflata
Gennadas incertus
Gennadas propinquus
Gennadas tinayrei
Geodia mesotriaena
Geodia robusta
Geomackiea zephyrolata
Gephyreaster swifti
Gersemia rubiformis
Gigantocypris agassizii
Gitanopsis vilordes
Glans carpenteri
Glossobalanus berkeleyi
Glycera americana
Glycera capitata
Glycera convoluta
Glycera gigantea
Glycera robusta
Glycera tenuis
Glycera tesselata
Glycinde armigera
Glycinde picta
Glycinde polygnatha
Glycymeris
Glycymeris corteziana
Glycymeris subobsoleta
Gnathostomula karlingi
Gnorimosphaeroma insulare
Gnorimosphaeroma noblei
Gnorimosphaeroma oregonensis
Golfingia margaritacea
Thysanocardia nigra
Golfingia vulgaris
Gonatopsis borealis
Gonatus berryi
Gonatus californiensis
Gonatus madokai
Gonatus onyx
Gonatus oregonensis
Gonatus pyros
Gonatus ursabrunae
Goniada annulata
Goniada brunnea
Goniada maculata
Gonionemus vertens
Gonothyraea loveni
Gonothyraea spp.
Gorgonocephalus eucnemis
Grammaria spp.
Grandifoxus grandis
Grania incerta
Grania paucispina
Grantia comoxensis
Grantia compressa
Granulina margaritula
Gymnocrater baxteri
Gyratrix hermaphroditus
Gyratrix proaviformis
Idas washingtonius
Haeckelia rubra
Halcampa crypta
Halcampa decemtentaculata
Halcampoides purpurea
Halecium
Halecium kofoidi
Halecium labrosum
Halecium muricatum
Halecium spp.
Halicardia perplicata
Halicella halona
Halichondria bowerbanki
Halichondria panicea
Halichondria spp.
Chalinula ecbasis
Haliclona permollis
Haliclystus salpinx
Haliclystus stejnegeri
Halimedusa typus
Haliophasma geminata
Haliotis cracherodii
Haliotis kamtschatkana
Haliotis rufescens
Haliotis walallensis
Haliplanella lineata
Halisarca sacra
Halistylus pupoideus
Halitholus pauper
Halitholus sp.
Hallaxa chani
Halobisium occidentale
Halocynthia aurantium
Halocynthia igaboja
Halosydna brevisetosa
Hamigera lundbecki
Haminoea vesicula
Haminoea virescens
Hanleya oldroydi
Hansenulus trebax
Hapalogaster grebnitzkii
Hapalogaster mertensii
Haploops tubicola
Haplosyllis spongicola subsp. spongicola
Harbansus mayeri
Harmothoe extenuata
Harmothoe fragilis
Harmothoe imbricata
Harmothoe lunulata
Harmothoe multisetosa
Harpiniopsis fulgens
Hataia parva
Thyone benti
Hebella spp.
Hedgpethia californica
Hedylopsis sp.
Helicoptilum rigidum
Endectyon hyle
Hemiarthrus abdominalis
Hemicyclops subadhaerens
Hemicyclops thysanotus
Hemicythere bicarina
Hemigrapsus nudus
Hemigrapsus oregonensis
Hemilamprops
Hemilamprops gracilis
Hemioniscus balani
Hemipenaeus spinidorsalis
Hemipodus borealis
Hemithiris psittacea
Henricia aspera
Henricia asthenactis
Henricia leviuscula
Henricia longispina
Henricia polyacantha
Henricia sanguinolenta
Henricia sp.
Heptabrachia ctenophora
Heptacarpus brevirostris
Heptacarpus camtschaticus
Heptacarpus carinatus
Heptacarpus decorus
Heptacarpus flexus
Heptacarpus herdmani
Heptacarpus kincaidi
Heptacarpus littoralis
Heptacarpus moseri
Heptacarpus paludicola
Heptacarpus pictus
Heptacarpus pugettensis
Heptacarpus sitchensis
Heptacarpus stimpsoni
Heptacarpus stylus
Heptacarpus taylori
Heptacarpus tenuissimus
Heptacarpus tridens
Hermadion truncata
Aplysiopsis olivae
Hermaea vancouverensis
Hermanella
Hermissenda crassicornis
Hesionura coineaui subsp. difficilis
Hesperonoe adventor
Hesperonoe complanata
Heteromastus filiformis
Heteromastus filobranchus
Heteromysis odontops
Heterophoxus oculatus
Heteropora alaskensis
Heteropora magna
Heteropora pacifica
Heterotiara anonyma
Heterozonias alternatus
Hexadella sp.
Hiatella arctica
Higginsia higgini
Hincksina alba
Hincksina pallida
Crassadoma gigantea
Hippasteria californica
Hippasteria spinosa
Primavelans insculpta
Hippodiplosia reticulatopunctata
Hippolyte clarki
Hippomedon spp.
Hippomonavella longirostrata
Hipponix cranioides
Hippoporella nitescens
Hippothoa divaricata
Hippothoa hyalina
Histioteuthis hoylei
Hobsonia florida
Holmesiella anomala
Holmesimysis costata
Holmesimysis nuda
Holmesimysis nudensis
Holmesimysis sculpta
Holmesimysis sculptoides
Hololepida magna
Holophryxus alaskensis
Holoporella brunnea
Homalopoma lacunatum
Homalopoma luridum
Homalopoma subobsoletum
Hopkinsia rosacea
Hormiphora cucumis
Humilaria kennerlyi
Huxleyia munita
Hyale
Hyale anceps
Hyale frequens
Hyale plumulosa
Hyale pugettensis
Hyalopecten neoceanus
Hyas lyratus
Hybocodon prolifer
Hyboscolex pacificus
Hydractinia aggregata
Hydractinia laevispina
Hydractinia milleri
Hydractinia sp.
Hydrallmania spp.
Hydrodendron spp.
Iophon rayae
Hymedesmia spp.
Acanthancora cyanocrypta
Hymenancora sp.
Hymenaster pellucidus
Hymenaster quadrispinosus
Plocamionida lyoni
Hymeniacidon perlevis
Hymeniacidon sinapium
Hymeniacidon ungodon
Hymeniacidon sp.
Hymenodora acanthitelsonis
Hymenodora frontalis
Hymenodora glacialis
Ianiropsis analoga
Ianiropsis kincaidi
Ianiropsis magnocula
Ianiropsis tridens
Idanthyrsus macropalea
Idanthyrsus saxicavus
Idarcturus hedgpethi
Pentidotea aculeata
Idotea fewkesi
Pentidotea kirchanskii
Pentidotea montereyensis
Idotea obscura
Idotea ochotensis
Idotea urotoma
Pentidotea resecata
Idotea rufescens
Pentidotea schmitti
Pentidotea stenops
Pentidotea wosnesenskii
Nassarius obsoletus
Immergentia sp.
Inusitatomysis insolita
Invenusta paracnida
Ione cornuta
Iophon lamella
Iophon piceus var. pacifica
Iothia lindbergi
Ischnochiton abyssicola
Ischnochiton interstinctus
Inchnochiton trifidus
Ischyrocerus anguipes
Ischyrocerus serratus
Ischyrocerus sp.
Iselica obtusa
Iselica ovoidea
Isocirrus longiceps
Isocyamus delphinii
Itaipusa bispina
Itaipusa curvicirra
Itaspiella armata
Joeropsis setosa
Janiralata occidentalis
Janiralata solasteri
Janolus barbarensis
Janolus fuscus
Janthina globosa
Janua pagenstecheri
Japatella diaphana
Jasmineira pacifica
Jassa spp.
Johanssonia sp.
Jones amaknakensis
Jonesia rostrata
Kaburakia excelsa
Katadesmia gibbsi
Katharina tunicata
Kefersteinia cirrata
Kellia suborbicularis
Kelliella galatheae
Keratella cochlearis subsp. tecta
Kermystheus ociosa
Kinorhynchus cataphractus
Kinorhynchus ilyocryptus
Kophobelemnon affine
Kophobelemnon biflorum
Kophobelemnon hispidum
Koroga megalops
Kronborgia pugettensis
Kurtzia arteaga
Kurtzia variegata
Kurtziella plumbea
Labidochirus splendescens
Lacerna fistulata
Lacuna marmorata
Lacuna porrecta
Lacuna variegata
Lacuna vincta
Laetmogone wyvillethompsoni
Laetmonice pellucida
Laetmophasma fecundum
Lafoea dumosa
Lafoea spp.
Lagenipora punctulata
Lagenipora socialis
Lagunogammarus setosus
Laila cockerelli
Lamellaria diegoensis
Lamellibrachia barhami
Lamellisabella coronata
Lamellisabella zachsi
Lamprops
Lamprops beringi
Lamprops carinatus
Lamprops fuscatus
Lamprops krasheninnikovi
Lamprops serratus
Lanassa venusta subsp. venusta
Lanice sp.
Laodicea sp.
Laonice cirrata
Laonice pugettensis
Laonome kroyeri
Laphania boecki
Laqueus vancouveriensis
Lasaea subviridis
Laternula limicola
Latrunculia sp.
Laxosuberites sp.
Leachia pacifica
Leanea ebranchiata
Lebbeus grandimanus
Lebbeus groenlandicus
Lebbeus schrencki
Lebbeus washingtonianus
Lebbeus sp.
Haploscoloplos panamensis
Leitoscoloplos pugettensis
Lensia baryi
Lensia conoidea
Lepas
Lepas anatifera
Lepas fascicularis
Lepas hilli
Lepas pacifica
Lepeta caeca
Lepidasthenia berkeleyae
Lepidasthenia longicirrata
Lepidepecreum garthi
Lepidepecreum gurjanovae
Lepidochitona dentiens
Lepidochitona fernaldi
Lepidochitona hartwegii
Lepidonotus squamatus
Lepidozona cooperi
Lepidozona mertensii
Lepidozona retiporosa
Lepidozona scabricostata
Lepidozona willetti
Lepraliella bispina
Leptasterias hexactis
Leptochelia savignyi
Leptochiton nexus
Leptochiton rugatus
Leptocuma
Akanthophoreus gracilis
Leptoplana vesiculata
Leptostylis
Leptostylis villosa
Leptosynapta clarki
Leptosynapta roxtona
Leptosynapta transgressor
Leptychaster anomalus
Leptychaster arcticus
Leptychaster inermis
Leptychaster pacificus
Lethasterias nanimensis
Leucandra heathi
Leucandra levis
Leucandra pyriformis
Leucandra taylori
Leucilla nuttingi
Leuckartiara foersteri
Leuckartiara spp.
Leucon
Leucon fulvus
Leucon nasica
Leucopsila stylifera
Leucosolenia eleanor
Leucosolenia nautilia
Leucosolenia spp.
Leucothea sp.
Leucothoe spp.
Leuroleberis sharpei
Levinsenia rectangulata
Lichenopora novae-zelandiae
Lichenopora verrucaria
Lictorella
Ligia occidentalis
Ligia pallasii
Limacina helicina
Limalepeta caecoides
Limatula attenuata
Limatula saturna
Limatula subauriculata
Limatula vancouverensis
Limnodriloides monothecus
Limnodriloides victoriensis
Limnoria algarum
Limnoria lignorum
Limnoria tripunctata
Limopsis akutanica
Limopsis dalli
Lineus bilineatus
Lineus pictifrons
Lineus ruber
Lineus rubescens
Lineus sp.
Lineus vegetus
Liocyma fluctuosa
Liponema brevicornis
Liriopsis pygmaea
Elthusa californica
Lironeca vulgaris
Lirularia lirulata
Lirularia parcipicta
Lirularia succincta
Lissocrangon stylirostris
Lissodendoryx firma
Lissodendoryx sp.
Listriolobus hexamyotus
Lithodes aequispina
Lithodes couesi
Lithophaga plumula
Littorina keenae
Littorina plena
Littorina scutulata
Littorina sitkana
Littorophiloscia richardsonae
Locustogammarus levingsi
Loimia medusa
Loligo opalescens
Lophaster furcifer subsp. vexator
Lophaster furcilliger
Lophelia pertusa
Lopholithodes foraminatus
Lopholithodes mandtii
Lophopanopeus bellus subsp. bellus
Lophopanopeus bellus subsp. diegensis
Lottia alveus
Lottia asmi
Lottia digitalis
Lottia gigantea
Lottia instabilis
Lottia limatula
Lottia ochracea
Lottia painei
Lottia pelta
Lottia strigatella
Lottia triangularis
Loxoconcha dentiarticula
Loxoconcha fragilis
Loxoconcha tenuiungula
Loxokalypus socialis
Loxosoma davenporti
Loxosomella nordgaardi
Loxosomella spp.
Loxothylacus panopaei
Lubbockia
Parvilucina tenuisculpta
Erycina balliana
Luidia foliolata
Cheiraster dawsoni
Lumbricillus annulatus
Lumbricillus curtus
Lumbricillus lineatus
Lumbricillus mirabilis
Lumbricillus pagenstecheri
Lumbricillus qualicumensis
Lumbricillus tsimpseanis
Lumbricillus tuba
Eranno bicirrata
Lumbrineris californiensis
Lumbrineris cruzensis
Lumbrineris inflata
Lumbrineris japonica
Eranno lagunae
Lumbrineris latreilli
Lumbrineris limicola
Lumbrineris luti
Lumbrineris pallida
Lumbrineris similabris
Lumbrineris zonata
Lycastopsis sp.
Lyonsia californica
Lyonsiella parva
Lyrula hippocrepis
Lysianassa holmesi
Lysilla loveni
Lysippe labiata
Macclintockia scabra
Macoma balthica
Macoma brota
Macoma calcarea
Macoma carlottensis
Macoma eliminata
Macoma expansa
Macoma inquinata
Macoma moesta
Macoma nasuta
Macoma obliqua
Macoma secta
Macoma yoldiformis
Macrochaeta pege
Macroclymene sp.
Macrodasys cunctatus
Maera danae
Maera loveni
Maera simile
Magelona berkeleyi
Magelona hobsonae
Magelona longicornis
Magelona sacculata
Malacobdella spp.
Malacoceros fuliginosus
Rhynchospio glutaea
Maldane glebifex
Maldane sarsi subsp. sarsi
Maldanella harai
Maldanella robusta
Malletia faba
Malletia pacifica
Malletia talama
Malletia truncata
Malmiana diminuta
Malmiana virida
Manayunkia aestuarina
Mandibulophoxus gilesi
Margarites beringensis
Margarites marginatus
Margarites pupillus
Margarites rhodia
Margarites simblus
Marionina appendiculata
Marionina charlottensis
Marionina glandulifera
Marionina klaskisharum
Marionina neroutsensis
Marionina sjaelandica
Marionina southerni
Marionina subterranea
Marionina vancouverensis
Marphysa stylobranchiata
Marsenina rhombica
Marsenina stearnsii
Marseniopsis sharonae
Marsipobdella sacculata
Mayerella banksia
Mediaster aequalis
Mediomastus ambiseta
Mediomastus californiensis
Mediomastus capensis
Megacrenella columbiana
Megalomma splendida
Megalorchestia
Megalorchestia californiana
Megalorchestia columbiana
Megalorchestia pugettensis
Megaluropus spp.
Megamphopus sp.
Megasurcula carpenteriana
Meiomenia swedmarki
Melanochlamys diomedea
Melibe leonina
Melicertum octocostatum
Melinna cristata
Melinna elisabethae
Melita californica
Melita dentata
Melita desdichada
Melita oregonensis
Melita sulca
Melphidippella
Melphissana
Membranipora membranacea
Merriamum oxeota
Mertensia sp.
Mesochaetopterus taylori
Mesocrangon munitella
Mesolamprops
Mesolamprops californiensis
Mesonerilla sp.
Mesothuria murrayi
Metacaprella anomala
Metacaprella kennerlyi
Metacrangon acclivis
Metacrangon munita
Metacrangon spinosissima
Metacrangon variabilis
Metandrocarpa dura
Metandrocarpa taylori
Metaphoxus frequens
Metaphoxus fultoni
Meterythrops robusta
Metopa cistella
Metopella carinata
Metridium senile
Metridium sp.
Caecum crebricinctum
Coxicerberus abbotti
Microcerberus abbotti subsp. juani
Clathria microjoanna
Clathria primitiva
Clathria prolifera
Microglyphis estuarinus
Microjassa litotes
Microjassa spp.
Micronereis nanaimoensis
Micropodarke dubia
Micropora coriacea
Microporella californica
Microporella ciliata
Microporella setiformis
Microporella umbonata
Microporella vibraculifera
Microporina borealis
Micrura alaskensis
Micrura verrilli
Micrura wilsoni
Mimulus foliatus
Miontodiscus prolongatus
Mitella polymerus
Mitrocoma
Earleria cellularia
Mitrocomella
Mitrocomella polydiademata
Mitromorpha gracilior
Modiolus modiolus
Modiolus rectus
Mohnia frielei
Molgula cooperi
Molgula oregonia
Molgula pacifica
Molgula pugetiensis
Molpadia borealis
Molpadia granulosa
Molpadia intermedia
Molpadia musculus
Monobrachium parasiticum
Monoculodes spinipes
Monoculodes zernovi
Monoculodes spp.
Monopylephorus cuticulatus
Monopylephorus parvus
Monopylephorus rubroniveus
Monstrilla canadensis
Monstrilla helgolandica
Monstrilla longiremis
Monstrilla spinosa
Monstrilla wandelii
Mooreonuphis stigmatis
Mopalia ciliata
Mopalia cirrata
Mopalia cithara
Mopalia egretta
Mopalia hindsii
Mopalia imporcata
Mopalia laevior
Mopalia lignosa
Mopalia muscosa
Mopalia phorminx
Mopalia porifera
Mopalia sinuata
Mopalia spectabilis
Mopalia swanii
Moroteuthis robusta
Mucronella ventricosa
Muggiaea atlantica
Munida quadrispina
Munidion parvum
Munidopsis quadrata
Munna chromatocephala
Munna fernaldi
Uromunna ubiquita
Munnogonium tillerae
Platymera gaudichaudii
Musculista senhousia
Musculus discors
Musculus niger
Musculus taylori
Musellifer sublitoralis
Mya arenaria
Mya truncata
Mycale adhaerens
Mycale bellabellensis
Mycale hispida
Mycale macginitiei
Mycale richardsoni
Mycale toporoki
Mycalelcarmia lobata
Myonera tillamookensis
Myosoma spinosa
Myriochele oculata
Myriotrochus bathybius
Myriotrochus giganteus
Myriotrochus sp.
Myriozoum coarctatum
Myriozoum subgracile
Myriozoum tenue
Mysella tumida
Mysidella americana
Mysis litoralis
Mystides borealis
Mytilicola orientalis
Mytilimeria nuttalli
Mytilus californianus
Mytilus edulis
Myxicola infundibulum
Myxilla behringensis
Myxilla incrustans
Myxilla lacunosa
Myxoderma platyacanthum
Myxoderma sacculatum
Myzostomum pseudogigas
Naineris dendritica
Naineris quadricuspida
Naineris uncinata
Nais communis
Nais elinguis
Nais variabilis
Najna spp.
Nanomia cara
Nassarius fossatus
Nassarius fraterculus
Nassarius mendicus
Nassarius perpinguis
Nassarius rhinetes
Cryptonatica affinis
Nearchaster aciculosus
Nebalia pugettensis
Nectonemertes mirabilis
Nellobia eusoma
Nematoplana nigrocapitula
Nematostella vectensis
Nemertopsis gracilis
Nemocardium centifilosum
Neoadmete circumcincta
Neoadmete modesta
Neoamphitrite edwardsi
Neoamphitrite groenlandica
Neoamphitrite robusta
Neocrangon abyssorum
Neocrangon communis
Neocrangon resima
Neocyamus physeteris
Neoesperiopsis digitata
Neoesperiopsis infundibula
Isodictya rigida
Neoesperiopsis vancouverensis
Neoleprea californica
Neoleprea japonica
Neoleprea spiralis
Neomenia dalyelli
Neomolgus littoralis
Neomysis kadiakensis
Neomysis mercedis
Neomysis rayii
Neoturris breviconis
Neoturris spp.
Nephtys assignis
Nephtys brachycephala
Nephtys caeca
Nephtys caecoides
Nephtys californiensis
Nephtys ciliata
Nephtys cornuta subsp. cornuta
Nephtys cornuta subsp. franciscana
Nephtys ferruginea
Nephtys longosetosa
Nephtys punctata
Nephtys rickettsi
Neptunea amianta
Neptunea humboldtiana
Neptunea ithia
Neptunea lyrata
Neptunea phoenicia
Neptunea pribiloffensis
Neptunea smirnia
Neptunea stilesi
Neptunea tabulata
Alitta brandti
Nereis eakini
Nereis grubei
Hediste limnicola
Nereis neoneanthes
Ceratonereis paucidentata
Nereis pelagica
Nereis procera
Nereis vexillosa
Alitta virens
Eunereis wailesi
Nereis zonata
Nerilla antennata
Nerilla digitata
Nerilla inopinata
Nesion arcticum
Netastoma rostrata
Neverita lamonae
Nexilis epichitonius
Nicolea zostericola
Nicomache lumbricalis
Nicomache personata
Nicon moniloceras
Ninoe sp.
Nipponnemertes pacificus
Nipponemertes punctatulus
Nitidiscala caamanoi
Nitidiscala catalinae
Nitidiscala catalinensis
Nitidiscala hindsii
Nitidiscala indianorum
Nitidiscala sawinae
Nitidiscala tincta
Niveotectura funiculata
Nolella stipata
Nootkadrilus compressus
Nootkadrilus gracilisetosus
Nootkadrilus hamatus
Nootkadrilus verutus
Notholca striata
Nothria conchylega
Notocaryoplana arctica
Notocirrus californiensis
Notomastus giganteus
Notomastus lineatus
Notomastus tenuis
Notomastus variegatus
Notophyllum imbricatum
Notophyllum tectum
Notoplana atomata
Notoplana celeris
Notoplana inquieta
Notoplana inquilina
Notoplana longastyletta
Notoplana natans
Notoplana rupicola
Notoplana sanguinea
Notoplana sanjuania
Notoproctus pacificus
Notostomum cyclostomum
Notostomus japonicus
Novobranchus pacificus
Nucella canaliculata
Nucella emarginata
Nucella lamellosa
Nucella lima
Nucula cardara
Nucula carlottensis
Nucula darella
Ennucula linki
Nucula tenuis
Nuculana amiata
Nuculana cellulita
Nuculana conceptionis
Nuculana extenuata
Nuculana fossa
Nuculana gmophoidea
Nuculana hamata
Nuculana leonina
Nuculana liogona
Nuculana lomaensis
Nuculana minuta
Nuculana penderi
Nuculana pernula
Nuculana spargana
Nuculana taphria
Nuculana tenuisculpta
Nuttallina californica
Nymphon
Nymphon grossipes
Nymphon longitarse
Nymphon pixellae
Nymphon rubrum
Nymphopsis spinosissima
Obelia
Obelia bidentata
Obelia dichotoma
Obelia geniculata
Oceanobdella pallida
Ocenebra interfossa
Ocenebra lurida
Ocenebra orpheus
Ocenebra painei
Ocenebra sclera
Ocenebra triangulata
Octopoteuthis deletron
Enteroctopus dofleini
Benthoctopus leioderma
Octopus rubescens
Odius kelleri
Mendicula ferruginosa
Odontosyllis fulgurans subsp. japonica
Odontosyllis parva
Odontosyllis phosphorea
Odostomia
Odostomia angularis
Odostomia barkleyensis
Odostomia canfieldi
Odostomia cassandra
Odostomia chinooki
Odostomia columbiana
Odostomia cypria
Odostomia engbergi
Odostomia grippiana
Odostomia kennerleyi
Odostomia nuciformis
Odostomia oregonensis
Odostomia quadrae
Odostomia satura
Odostomia spreadboroughi
Odostomia tacomaensis
Odostomia tenuisculpta
Odostomia vancouverensis
Odostomia willetti
Odostomia youngi
Oedignathus inermis
Oenopota alaskensis
Oenopota alitakensis
Oenopota babylonia
Oenopota crebricostata
Oenopota elegans
Oenopota excurvata
Oenopota fidicula
Oenopota harpa
Propebela harpularia
Oenopota krausei
Oenopota kyskana
Oenopota levidensis
Oenopota maurellei
Oenopota pleurotomaria
Oenopota popovia
Oenopota pyramidalis
Oenopota reticulata
Oenopota rosea
Oenopota sculpturata
Oenopota solida
Oenopota tabulata
Oenopota turricula
Oenopota viridula
Oerstedia spp.
Oikopleura dioica
Oikopleura labradoriensis
Oithona
Okenia vancouverensis
Olea hansineensis
Oligochinus
Oligochinus lighti
Olivella baetica
Olivella biplicata
Olivella strigata
Ommastrephes barirami
Oncaea
Onchidella borealis
Onchidella carpenteri
Onchidoris bilamellata
Onchidoris muricata
Oneirophanta mutabilis
Onuphis elegans
Onuphis geophiliformis
Onuphis iridescens
Onychoteuthis borealijaponica
Opalia borealis
Opalia montereyensis
Ophelia limacina
Ophelina acuminata
Ophelina breviata
Ophiacantha abyssa
Ophiacantha bathybia
Ophiacantha rhachophora
Ophiacantha trachybactra
Ophidonais serpentina
Ophiodermella cancellata
Ophiodermella inermis
Ophiodromus pugettensis
Ophioleuce oxycraspedon
Ophiolimna bairdi
Ophiomusium glabrum
Ophiosphalma jolliense
Ophiomusium lymani
Ophiopholis aculeata
Ophiopholis bakeri
Ophiopholis longispina
Ophiophthalmus cataleimmoidus
Ophiophthalmus diplasia
Ophiophthalmus eurypoma
Ophiophthalmus normani
Ophiopteris papillosa
Ophioscolex corynetes
Ophiura bathybia
Ophiura cryptolepis
Ophiura flagellata
Ophiura ambigua
Ophiura leptoctenia
Ophiura lutkeni
Ophiura sarsii
Ophlitaspongia pennata
Ophryotrocha vivipara
Opisa tridentata
Opisthoteuthis californiana
Oradarea longimana
Orbiniella nuda
Orchomene decipiens
Orchomene obtusa
Orchomene pacifica
Orchomene pinguis
Orchomene sp.
Oregonia bifurca
Oregonia gracilis
Oregoniplana opisthopora
Orina sp.
Oriopsis gracilis
Oriopsis minuta
Orthasterias koehleri
Orthopagurus minimus
Orthoplana kohni
Orthopyxis spp.
Ostrea lurida
Ostreobdella papillata
Otocelis luteola
Otopsis longipes
Ototyphlonemertes americana
Owenia fusiformis delle
Oxyurostylis
Pachycerianthus fimbriatus
Pachychalina spp.
Pachycheles pubescens
Pachycheles rudis
Pachygrapsus crassipes
Pachynus barnardi
Pacifacanthomysis nephrophthalma
Pacifides psammophilus
Paciforchestia
Paciforchestia klawei
Paelopatides sp.
Paguristes turgidus
Paguristes ulreyi
Pagurus aleuticus
Pagurus armatus
Pagurus beringanus
Pagurus capillatus
Pagurus caurinus
Pagurus confragosus
Pagurus cornutus
Pagurus dalli
Pagurus granosimanus
Pagurus hemphilli
Pagurus hirsutiusculus
Pagurus kennerlyi
Pagurus ochotensis
Pagurus quaylei
Pagurus samuelis
Pagurus setosus
Pagurus stevensae
Pagurus tanneri
Paleanotus bellis
Palio zosterae
Pancolus californiensis
Pandalopsis ampla
Pandalopsis dispar
Pandalus borealis
Pandalus danae
Pandalus goniurus
Pandalus gurneyi
Pandalus hypsinotus
Pandalus jordani
Pandalus platyceros
Pandalus stenolepis
Pandalus tridens
Pandea rubra
Pandora bilirata
Pandora filosa
Pandora glacialis
Pandora punctata
Pandora wardiana
Pannychia moseleyi
Panomya
Panomya beringiana
Panomya chrysis
Panopea abrupta
Pantachogon sp.
Prosadenoporus californiensis
Paracalliopiella pratti
Paracaudina chilensis
Paracrangon echinata
Paractinostola faeculenta
Paracyathus stearnsi
Paradexiospira vitrea
Paradoxostoma cuneata
Paradoxostoma fraseri
Paradoxostoma striungulum
Paradulichia typica
Paragorgia arborea
Paralaeospira malardi
Paralithodes camtschaticus
Parallorchestes spp.
Paralomis multispina
Paralomis verrilli
Paramoera bousfieldi
Paramoera bucki
Paramoera carlottensis
Paramoera columbiana
Paramoera leucophthalma
Paramoera mohri
Paramoera serrata
Paramoera suchaneki
Paranais frici
Paranais litoralis
Paranemertes peregrina
Paranemertes sanjuanensis
Paraonella platybranchia
Paraonella spinifera
Parapagurus benedicti
Parapasiphae sulcatifrons
Paraphoxus oculatus
Parapleustes den
Parapleustes nautilus
Parapleustes oculatus
Parapleustes pugettensis
Paraprionospio pinnata
Parasmittina collifera
Parasmittina trispinosa
Parastenella sp.
Parasterope sp.
Apostichopus californicus
Apostichopus leukothele
Paratomella unichaeta
Paraturbanella intermedia
Pardalisca cuspidata
Pardalisca tenuipes
Mycale psila
Parotoplana pacifica
Cyclopecten alaskensis
Pasiphaea pacifica
Pasiphaea tarda
Patinopecten caurinus
Peachia quinquecapitata
Pectinaria californiensis
Pectinaria granulata
Amphictene moorei
Pectinaster agassizi subsp. evoplus
Pedicellaster magister
Pedicellina cernua
Pholoides aspera
Pelagonemertes brinkmanni
Pelagonemertes joubini
Pelonaia corrugata
Peltogaster boschmae
Peltogaster paguri
Peltogasterella gracilis
Penares cortius
Penetrantia sp.
Peniagone gracilis
Peniagone sp.
Penitella conradi
Penitella gabbii
Penitella penita
Penitella turnerae
Pennatula phosphorea
Pentamera lissoplaca
Pentamera populifera
Pentamera pseudocalcigera
Pentamera trachyplaca
Pentamera spp.
Pentametrocrinus sp.
Peramphithoe humeralis
Peramphithoe lindbergi
Peramphithoe mea
Peramphithoe plea
Peramphithoe tea
Peribolaster biserialis
Leuckartiara octona
Perigonimus spp.
Perinereis monterea
Perophora annectens
Perotripus brevis
Petalidium subspinosum
Petaloconchus compactus
Petaloproctus borealis
Petaloproctus tenuis subsp. tenuis
Petricola carditoides
Petricola pholadiformis
Petrolisthes cinctipes
Petrolisthes eriomerus
Pettiboneia pugettensis
Phacellophora camtschatica
Echinoclathria beringensis
Pectinodrilus tempestatis
Phascolosoma agassizii
Pherusa inflata
Pherusa negligens
Pherusa plumosa
Clytia gregaria
Phialidium lomae
Phidolopora labiata
Philine bakeri
Philobrya setosa
Philomedes dentata
Philosyrtis sanjuanensis
Pholoe minuta
Phoronis ovalis
Phoronis pallida
Phoronis vancouverensis
Phoronopsis harmeri
Photis
Photis bifurcata
Photis brevipes
Photis conchicola
Photis conchicola-oligochaeta
Photis lacia
Photis macinerneyi
Photis oligochaeta
Photis pachydactyla
Photis parvidons
Phoxichilidium femoratum
Phoxocephalus homilis
Phronima sedentaria
Phyllaplysia taylori
Phyllochaetopterus claparedii
Phyllochaetopterus prolifica
Phyllodoce castanea
Phyllodoce citrina
Phyllodoce groenlandica
Phyllodoce maculata
Phyllodoce madeirensis
Phyllodoce medipapillata
Phyllodoce mucosa
Phyllodoce multiseriata
Phyllodoce polynoides
Phyllodoce williamsi
Phyllodurus abdominalis
Phyllolithodes papillosus
Phylloplana viridis
Physophora hydrostatica
Phytia myosotis
Pilargis berkeleyae
Pileolaria potswaldi
Pileolaria quadrangularis
Pileolaria similis
Pinnixa eburna
Pinnixa faba
Pinnixa littoralis
Pinnixa occidentalis
Pinnixa schmitti
Pinnixa tubicola
Pinnotheres pugettensis
Pinnotheres taylori
Pionosyllis gigantea
Pionosyllis uraga
Piromis eruca
Pisaster brevispinus
Pisaster ochraceus
Piscicola sp.
Pista brevibranchiata
Pista cristata
Pista elongata
Pista moorei
Pista pacifica
Placetron wosnessenskii
Placida dendritica
Placiphorella rufa
Placiphorella velata
Plagioecia patina
Plakina brachylopha
Plakina trilopha
Plakina sp.
Planes major
Planes marinus
Platorchestia
Platorchestia chathamensis
Platycyamus sp.
Platynereis bicanaliculata
Platyodon cancellatus
Platyodon scaber
Pleopis polyphemoides
Pleurobrachia bachei
Pleurogonium rubicundum
Pleusirus secorrus
Pleustes depressa
Pleusymtes sp.
Pleusymtes subglaber
Plicifusus griseus
Antho karykina
Antho illgi
Plocamilla lambei
Ploima
Plotocnide borealis
Plotohelmis tenuis
Plotonemertes adhaerens
Plumularia lagenifera
Plumularia setacea
Plumularia spp.
Pluribursaeplana illgi
Pneumoderma violaceum
Pneumodermopsis macrochira
Podarkeopsis brevipalpa
Podoceropsis barnardi
Podoceropsis chionoecetophila
Podoceropsis cristatus
Pododesmus macrochisma
Podon leuckarti
Artemisina stipitata
Poecillastra rickettsi
Policordia alaskana
Polinices draconis
Euspira lewisii
Neverita politiana
Polybrachia canadensis
Polycera tricolor
Polycheria
Polycheria osborni
Polycirrus californicus
Polycystis hamata
Polydora alloporis
Polydora armata
Polydora brachycephala
Dipolydora cardalia
Boccardia columbiana
Dipolydora commensalis
Polydora giardi
Boccardia hamata
Polydora kempi subsp. japonica
Polydora ligni
Polydora limicola
Boccardia polybranchia
Boccardia proboscidea
Boccardia pugettensis
Polydora pygidialis
Dipolydora quadrilobata
Polydora plena
Polydora spongicola
Polydora websteri
Polyeunoa tuta
Polygordius
Polymastia pachymastia
Polymastia pacifica
Polynoe canadensis
Polynoe gracilis
Polyorchis penicillatus
Polyrhabdoplana posttestis
Pontocypris clemensi
Pontogeneia ivanovi
Pontogeneia rostrata
Pontogeneia inermis
Pontogeneia intermedia
Poraniopsis inflata
Porcellio scaber
Porella columbiana
Porella concinna
Porella porifera
Poromya beringiana
Poromya canadensis
Poromya leonina
Poromya malespinae
Poromya tenuiconcha
Portlandia dalli
Portunion conformis
Pseudopotamilla intermedia
Pseudopotamilla myriops
Potamilla neglecta
Pseudopotamilla occelata
Pourtalesia tanneri
Pourtalesia thomsoni
Prachynella lodo
Praxillella affinis subsp. affinis
Praxillella affinis subsp. pacifica
Praxillella gracilis
Praxillella praetermissa
Praxillura maculata
Praya dubia
Praya reticulata
Neopetrosia problematica
Priapulus caudatus
Primnoa willeyi
Prionospio multibranchiata
Prionospio steenstrupi
Prionospio sp.
Proales spp.
Proboloides sp.
Proboscidactyla flavicirrata
Proboscina incrassata
Proboscinotus loquax
Procerodes pacifica
Proclea graffii
Promesostoma hymanae
Promesostoma infundibulum
Proneomysis wailesi
Propeamussium malpelonium
Prophryxus alascensis
Prosorhochmus spp.
Prosuberites sp.
Rynkatorpa duodactyla
Protankyra pacifica
Protoariciella oligobranchia
Protodorvillea gracilis
Protodriloides chaetifer
Protodrilus flabelliger
Protohydra leuckarti
Protolaeospira capensis
Protolaeospira eximia
Protomedeia articulata
Protomedeia grandimana
Protomedeia penates
Protomedeia prudens
Protothaca staminea
Protothaca tenerrima
Protula pacifica
Psammonyx longimerus
Psathrometra fragilis
Nutricola lordi
Psephidia ovalis
Pseudanthessius latus
Pseudarchaster dissonus
Pseudarchaster parelii
Ptilocaulis walpersi
Pseudevadne tergestina
Pseudione galacanthae
Pseudione giardi
Pseudoceros canadensis
Pseudochama exogyra
Pseudochitinopoma occidentalis
Pseudoliropus vanus
Pseudolubbockia
Pseudomma berkeleyi
Pseudopythina compressa
Pseudopythina rugifera
Pseudostichopus mollis
Pseudostichopus nudus
Molpadiodemas villosus
Pseudostylochus burchami
Pseudostylochus ostreophagus
Pseudosuberites spp.
Pseudotanais oculatus
Psilaster pectinatus
Psolidium bullatum
Psolus chitinoides
Psolus squamatus
Psychropotes longicaudata
Psychropotes longicauda
Pteraster jordani
Pteraster militaris
Pteraster tesselatus
Pterotrachea coronata
Pterotrachea hippocampus
Pterotrachea minuta
Pterotrachea scutata
Ptilocrinus pinnatus
Ptilosarcus gurneyi
Ptychogastria polaris
Ptychogena
Ptychogena lactea
Puellina setosa
Pugettia gracilis
Pugettia producta
Pugettia richii
Pulsellum salishorum
Puncturella cooperi
Puncturella cucullata
Puncturella decorata
Puncturella expansa
Puncturella galeata
Puncturella multistriata
Puncturella rothi
Pycnoclavella stanleyi
Pycnogonum rickettsi
Pycnogonum stearnsi
Pycnophyes sanjuanensis
Pycnopodia helianthoides
Pygospio elegans
Pyura haustor
Pyura mirabilis
Pyura spp.
Questa caudicirra
Radiceps sp.
Ramellogammarus ramellus
Ramellogammarus vancouverensis
Raphidophallus actuosus
Rathbunaster californicus
Rathkea octopunctata
Reginella furcata
Reginella nitida
Haliclona mollis
Retiometra alascana
Acanthascus dawsoni
Rhachotropis clemens
Rhachotropis oculata
Rhamphidonta retifera
Rhamphostomella cellata
Rhamphostomella costata
Rhamphostomella curvirostrata
Rhepoxynius abronius
Rhepoxynius bicuspidatus
Rhepoxynius daboius
Rhepoxynius heterocuspidatus
Rhepoxynius tridentatus
Rhepoxynius variatus
Rhepoxynius vigitegus
Rhinolithodes wosnessenskii
Rhizocaulus verticillatus
Rhizodrilus pacificus
Rhizogeton sp.
Rhodine bitorquata
Rhopalura ophiocomae
Rhynchonereella angelinia
Rhynchonerella gracilis
Rhynchozoon tumulosum
Rhynocrangon alata
Rhysia sp.
Rictaxis punctocaelatus
Ridgeia phaeophiale
Ridgeia piscesae
Rissoina newcombiana
Ritterella aequalisiphonis
Ritterella pulchra
Ritterella rubra
Rocinela angustata
Rocinela belliceps
Rocinela propodialis
Rocinela tridens
Ceratophysa rosea
Rossia pacifica
Rostanga pulchra
Roya spongotheres
Rutiderma rostratum
Bispira crassicornis
Parasabella media
Dodecaceria fewkesi
Sabellacheres
Neosabellaria cementarium
Sabellastarte sp.
Sabia conica
Sabinella ptilocrinicola
Saccocirrus eroticus
Saccocirrus sonomacus
Saccoglossus sp.
Saduria entomon
Sagitella kowalewskii
Sagitta blerii
Mesosagattia decipiens
Parasagitta elegans
Parasagitta friderici
Pseudosagitta maxima
Mesosagitta minima
Sagitta scrippsae
Sahnia sp.
Salmacina tribranchiata
Samytha californiensis
Sarcodictyon sp.
Sarcoptiformes
Coryne eximia
Euphysa japonica
Sarsia princeps
Sarsia tubulosa
Sarsia viridis
Sarsia spp.
Sarsiella sp.
Onuphis parva
Saturnia brunnea
Saturnia cervola
Saturnia kennerlyi
Saxidomus giganteus
Scalibregma inflatum
Hamatoscalpellum columbianum
Schistocomus hiltoni
Schistomeringos annulata
Schistomeringos caeca
Schistomeringos japonica
Schistomeringos moniloceras
Schistomeringos pseudorubrovittata
Schistomeringos rudolphi
Schisturella cocula
Schizobranchia insignis
Schizomavella auriculata
Schizoplax brandtii
Schizoporella linearis subsp. inarmata
Schizoporella unicornis
Scintillona bellerophon
Pista estevanica
Scionella japonica
Scleroconcha trituberculata
Sclerocrangon boreas
Scleroplax granulata
Scleroptilum sp.
Scolelepis foliosa
Scolelepis squamata
Scoloplos ameceps
Scoloplos armiger
Scotoplanes clarki
Scotoplanes globosa
Scrupocellaria californica
Sycon compactum
Scypha mundula
Sycon protectum
Scypha spp.
Scyra acutifrons
Lirabuccinum dirum
Seguenzia cervola
Seguenzia megaloconcha
Seguenzia quinni
Seguenzia stephanica
Seison sp.
Semele rubropicta
Semibalanus balanoides
Semibalanus cariosus
Sergia tenuiremis
Serpula vermicularis
Serripes groenlandicus
Sertularella tenella
Sertularella tricuspidata
Sertularia mirabilis
Sertularia robusta
Sertularia spp.
Siboglinum fedotovi
Siboglinum pusillum
Sigambra tentaculata
Xestospongia edapha
Sigmadocia spp.
Siliqua lucida
Siliqua patula
Siliqua sloati
Sinistrella abnormis
Spirorbis medius
Sinistrella verruca
Siphonaria thersites
Smittina cordata
Smittina landsborovii
Solariella nuda
Solariella obscura
Solariella peramabilis
Solariella vancouverensis
Solaster dawsoni
Solaster endeca
Solaster paxillatus
Solaster stimpsoni
Solemya reidi
Solen sicarius
Solenosmilia variabilis
Solidobalanus engbergi
Hesperibalanus hesperius
Solmissus incisa
Solmissus marshalli
Sosaniopsis hesslei
Specaria fraseri
Sperosoma biseriatum
Sperosoma giganteum
Sphaerodoropsis biserialis
Sphaerodoropsis minuta
Sphaerodoropsis sphaerulifer
Sphaerodorum papillifer
Sphaeronectes gracilis
Prosphaerosyllis brandhorsti
Sphaerosyllis hystrix
Sphaerosyllis pirifera
Ypsilothuria bitentaculata
Sphenia ovoidea
Spio butleri
Spio cirrifera
Spio filicornis
Spio sp.
Spiochaetopterus costarum
Spiophanes berkeleyorum
Spiophanes bombyx
Spiophanes kroyeri
Spiromoelleria quadrae
Spirontocaris arcuata
Spirontocaris holmesi
Spirontocaris lamellicornis
Spirontocaris ochotensis
Spirontocaris prionota
Spirontocaris sica
Spirontocaris spina
Spirontocaris synderi
Spirontocaris truncata
Spisula falcata
Acanthascus dowlingi
Cuspidella mertensi
Stegopoma spp.
Stelletta clarella
Monanchora alaskensis
Ectyonopsis hartmani
Stenoplax fallax
Stenoplax heathiana
Stenula spp.
Stephanauge annularis
Stephanosella vitrea
Stephensoniella trevori
Sternaspis scutata
Sthenelais berkeleyi
Sthenelais tertiaglabra
Stibarobdella loricata
Stiliger fuscovittatus
Stilipes sp.
Stilomysis grandis
Stomachetosella cruenta
Stomachetosella limbata
Stomachetosella sinuosa
Stomatopora granulata
Stomotoca atra
Stomphia coccinea
Stomphia didemon
Stomphia sp.
Streblosoma bairdi
Streblospio benedicti
Streptosyllis latipalpa
Strongylocentrotus droebachiensis
Strongylocentrotus franciscanus
Strongylocentrotus pallidus
Strongylocentrotus purpuratus
Styela clavata
Styela coriacea
Styela gibbsii
Styela montereyensis
Styela truncata
Stygocapitella subterranea
Stylasterias forreri
Stylatula elongata
Stylinos sp.
Styliola subula
Semisuberites cribrosa
Stylochoplana chloranota
Stylochus atentaculatus
Stylochus tripartitus
Stylopus arndti
Stylostomum album
Stylostomum sanjuania
Pseudosuberites montiniger
Suberites suberea forma latus
Suberites simplex
Suberites spp.
Swiftia kofoidi
Swiftia simplex
Swiftia spauldingi
Swiftia torreyi
Sycandra utriculus
Syllides japonica
Syllides longocirrata
Typosyllis adamantea subsp. adamantea
Syllis alternata
Syllis armillaris
Syllis elongata
Syllis fasciata
Syllis gracilis
Syllis heterochaeta
Syllis hyalina
Typosyllis pulchra
Haplosyllis spongiphila
Typosillis stewarti
Syllis variegata
Syllis sp.
Sylon hippolytes
Symplectoscyphus spp.
Synallactes gilberti
Synchaeta baltica
Synchaeta johanseni
Synchelidium
Synchelidium rectipalmum
Synchelidium shoemakeri
Syndesmis dendrastrorum
Syndesmis spp.
Syndisyrinx franciscanus
Synidotea angulata
Synidotea bicuspida
Synidotea nebulosa
Synidotea nodulosa
Synidotea pettiboneae
Synidotea ritteri
Synnotum aegyptiacum
Synoicum parfustis
Synoicum spp.
Plicatellopsis amphispicula
Syrrhoe longifrons
Systellaspis braueri
Systellaspis cristata
Tachyrhynchus erosus
Tachyrhynchus lacteolus
Tanystylum anthomasti
Tanystylum occidentalis
Tanystylum sp.
Taonius pavo
Venerupis philippinarum
Taranis strongi
Tarsaster alaskanus
Levinsenia gracilis
Tecticeps pugettensis
Tectidrilus diversus
Tectidrilus verrucosus
Tectura fenestrata
Tectura paleacea
Tectura persona
Tectura rosacea
Tectura scutum
Tedania fragilis
Tedania gurjanovae
Tedania obscurata
Tegella aquilirostris
Tegella armifera
Tegella robertsonae
Tegula brunnea
Tegula funebralis
Tegula pulligo
Tellina bodegensis
Tellina carpenteri
Tellina modesta
Tellina nuculoides
Telmessus cheiragonus
Tenonia priops
Tenthrenodes sp.
Terebella ehrenbergi
Terebellides pacifica
Terebratalia transversa
Terebratulina unguicula
Teredo navalis
Tethya aurantia
Tetranchyroderma pugetensis
Tetrastemma bicolor
Tetrastemma bilineatum
Tetrastemma candidum
Tetrastemma nigrifrons
Antarctonemertes phyllospadicola
Tetrastemma spp.
Thalassema steinbecki
Thalestris rhodymeniae
Clathria laevigata
Tharyx multifilis
Tharyx parvus
Tharyx secundus
Aphelochaeta serratiseta
Manania hexaradiata
Thecocarpus spp.
Thelepus cincinnatus
Thelepus crispus
Thelepus hamatus
Thelepus japonicus
Thelepus setosus
Themiste dyscrita
Themiste pyroides
Thompsonia sp.
Thracia myopsis
Thracia challisiana
Thracia curta
Thracia trapezoides
Thrissacanthias penicillatus
Thuiaria
Thuiaria distans
Thuiaria articulata
Sertularia robusta
Thuiaria tenera
Thuiaria thuja
Thuiaria spp.
Thyasira barbarensis
Thyasira cygnus
Thyasira gouldii
Thyonicola americana
Thyonicola dogieli
Thysanoessa raschii
Tiaropsidium
Tiaropsidium kelseyi
Tiaropsis
Tiaropsis multicirrata
Tindaria compressa
Tindaria dicofania
Tiron biocellata
Tochuina tetraquetra
Todarodes pacificus
Tomopteris pacifica
Tomopteris septentrionalis
Tonicella insignis
Tonicella lineata
Tontocythere sp.
Topsentia disparilis
Toxidocia spp.
Trachelobdella oregonensis
Nutricola confusa
Transennella tantilla
Traskorchestia
Traskorchestia georgiana
Traskorchestia traskiana
Travisia brevis
Travisia forbesii
Travisia japonica
Travisia pupa
Travisiopsis lobifera
Tresus
Tresus capax
Tresus nuttallii
Tricellaria erecta
Tricellaria occidentalis
Tricellaria praescuta
Tricellaria ternata
Trichobranchus glacialis
Trichocerca marina
Trichotropis bicarinata
Trichotropis borealis
Trichotropis cancellata
Trichotropis insignis
Trichydra pudica
Tricolia pulloides
Trididemnum opacum
Trididemnum strangulatum
Astarte elliptica
Trilobodrilus nipponicus
Triopha catalinae
Tritella laevis
Tritella pilimana
Triticella pedicellata
Tritonia diomedea
Tritonia exsulans
Tritonia festiva
Trochochaeta multisetosa
Trophonopsis clathratus
Trophonopsis dalli
Trophonopsis disparilis
Trophonopsis kamtchatkanus
Trophonopsis lasius
Trophonopsis macouni
Trophonopsis pacificus
Trophonopsis scitulus
Trophonopsis staphylinus
Trophonopsis tripherus
Trypanosyllis gemmipara
Trypanosyllis ingens
Trypetesa lateralis
Trypostega claviculata
Tubificoides apectinatus
Tubificoides brevicoleus
Tubificoides coatesae
Tubificoides foliatus
Tubificoides kozloffi
Tubificoides nerthoides
Tubificoides pseudogaster
Tubonemertes wheeleri
Tubulanus albocinctus
Tubulanus capistratus
Tubulanus pellucidus
Tubulanus polymorphus
Tubulanus sexlineatus
Ectopleura crocea
Tubularia harrimani
Tubularia indivisa
Ectopleura marina
Tubulipora flabellaris
Tubulipora pacifica
Tubulipora tuba
Turbanella cornuta
Turbanella mustela
Turbanella sp.
Turbonilla
Turbonilla alaskana
Turbonilla aurantia
Turbonilla barkleyensis
Turbonilla engbergi
Turbonilla lordi
Turbonilla lyalli
Turbonilla pesa
Turbonilla pugetensis
Turbonilla rinella
Turbonilla stylina
Turbonilla taylori
Turbonilla torquata
Turritellopsis acicula
Turtonia minuta
Typhloscolex muelleri
Umbellula lindahli
Arctonula arctica
Upogebia pugettensis
Cystechinus loveni
Urechis caupo
Urosalpinx cinerea
Urothoe spp.
Urticina columbiana
Tealia coriacea
Urticina crassicornis
Tealia lofotensis
Urticina piscivora
Urticina sp.
Ainudrilus oceanicus aprostatus
Planctoteuthis oligobessa
Vampyroteuthis infernalis
Vanadis longissima
Vannuccia rotundouncinata
Vannuccia tripapillosa americana
Vargula sp.
Vaunthompsonia
Vaunthompsonia pacifica
Vejdovskyella hellei
Velella velella
Velutina plicatilis
Velutina prolongata
Vesicomya lepta
Vesicomya ovalis
Vesicomya stearnsii
Virgularia spp.
Vitrinella columbiana
Volutharpa ampullacea
Volutomitra alaskana
Volvulella cylindrica
Wahlia pulchella
Weberella verrucosa
Wecomedon similis
Wecomedon wecomus
Westwoodilla caecula
Xenacanthomysis pseudomacropsis
Xenobalanus globicipitis
Xestoleberis depressa
Xestoleberis dispar
Amphimedon trindanea
Neopetrosia vanilla
Xylophaga washingtona
Yaquinaia microrhynchus
Yoldia amygdalea
Yoldia beringiana
Yoldia martyria
Megayoldia montereyensis
Yoldia myalis
Yoldia scissurata
Yoldia thraciaeformis
Yoldiella capsa
Yoldiella dicella
Yoldiella orcia
Yoldiella sanesia
Zeuxo normani
Zirfaea pilsbryii
Sagenaster evermanni
Zoroaster ophiurus
Hamacantha hyaloderma
Zygonemertes virescens
Zygonemertes sp.
Zygophylax spp.
Zygothuria lactea