Invert-E-Base PortalWeb-KeyMarine Invertebrates of the San Juan Islands

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Home >> Checklist: Marine Invertebrates of the San Juan Islands >> Previous version of Key >> Identification Key (new version): Marine Invertebrates of the San Juan Islands Filter/Display Options Family/Genus Filter: Sort by: Display Common Names Display images: Marine Invertebrates of the San Juan Islands Paulay, Gustav (editor) Species Count: 765 Diaperoforma californica Acanthochitonidae Cryptochiton stelleri Acmaeidae Acmaea mitra Notoacmea persona Actiniidae Epiactis prolifera Urticina felina Actinostolidae Stomphia didemon Aegidae Rocinela angustata Rocinela belliceps Rocinela tridens Aegiridae Aegires albopunctatus Aeolidiidae Aeolidia loui Agalmatidae Nanomia bijuga Nanomia cara Aglajidae Melanochlamys diomedea Alcyoniidae Thrombophyton trachydermum Alpheidae Betaeus harrimani Ameiridae Ameira Ameira longipes Ammotheidae Achelia chelata Ampeliscidae Ampelisca lobata Ampharetidae Amage scutata Ampharete acutifrons Amphicteis mucronata Anobothrus gracilis Phyllocomus hiltoni Amphiporidae Amphiporus formidabilis Amphiuridae Amphiodia occidentalis Amphiodia trychna Amphiodia urtica Amphipholis pugetana Amphipholis squamata Amphoriscidae Leucilla nuttingi Ampithoidae Ampithoe dalli Ampithoe lacertosa Ampithoe simulans Cymadusa uncinata Peramphithoe tea Ancorinidae Stelletta clarella Anisogammaridae Anisogammarus pugettensis Eogammarus confervicolus Anomiidae Pododesmus macrochisma Aoridae Aoroides columbiae Aoroides intermedius Aoroides spinosus Archaeobalanidae Solidobalanus engbergi Arenicolidae Abarenicola pacifica Abarenicola vagabunda Aristiidae Aristias veleronis Arminidae Armina californica Ascidiidae Ascidia columbiana Ascidia paratropa Assimineidae Assiminea californica Astartidae Astarte compacta Astarte elliptica Astarte esquimalti Asteriidae Leptasterias hexactis Pycnopodia helianthoides Balanidae Balanus balanus Balanus crenatus Balanus glandula Balanus rostratus Barentsiidae Barentsia benedeni Barentsia hildegardae Beroidae Beroe abyssicola Bopyridae Argeia pugettensis Bopyroides hippolytes Ione cornuta Pseudione galacanthae Pseudione giardi Bougainvilliidae Bougainvillia multitentaculata Bougainvillia principis Garveia annulata Rhizorhagium roseum Buccinidae Colus jordani Lirabuccinum dirum Bugulidae Bugula pacifica Bugulina californica Bugulina pugeti Crisularia pacifica Dendrobeania lichenoides Dendrobeania murrayana Bullidae Bulla gouldiana Caligidae Lepeophtheirus bifidus Lepeophtheirus hospitalis Lepeophtheirus parvicruris Lepeophtheirus parviventris Callianassidae Neotrypaea californiensis Neotrypaea gigas Calliopiidae Calliopius pacificus Oligochinus lighti Paracalliopiella pratti Calliostomatidae Calliostoma annulatum Calliostoma ligatum Calliostoma variegatum Calyptraeidae Calyptraea fastigiata Crepidula adunca Crepidula plana Crepipatella dorsata Crepipatella lingulata Campanulariidae Campanularia volubilis Clytia gregaria Rhizocaulus verticillatus Cancellothyrididae Terebratulina unguicula Cancridae Cancer productus Glebocarcinus oregonensis Metacarcinus gracilis Metacarcinus magister Candidae Pomocellaria californica Capitellidae Heteromastus filobranchus Caprellidae Caprella irregularis Caprella mutica Metacaprella kennerlyi Capulidae Trichotropis cancellata Cardiidae Ciliatocardium ciliatum Clinocardium nuttallii Keenocardium blandum Keenocardium californiense Nemocardium centifilosum Carditidae Cyclocardia crassidens Cyclocardia incisa Cyclocardia ventricosa Miodontiscus prolongatus Cellariidae Cellaria diffusa Cerianthidae Pachycerianthus fimbriatus Cerithiidae Neostylidium eschrichtii Chaetopteridae Mesochaetopterus taylori Phyllochaetopterus prolifica Chalinidae Sigmadocia porosa Cheiragonidae Telmessus cheiragonus Chiridotidae Chiridota albatrossii Chondracanthidae Acanthochondria rectangularis Chondracanthus irregularis Chromodorididae Cadlina luteomarginata Chrysopetalidae Paleanotus bellis Cirolanidae Cirolana harfordi Cirratulidae Cirratulus spectabilis Clavelinidae Distaplia occidentalis Distaplia smithi Clionaidae Cliona californiana Clionidae Clione limacina Clistosaccidae Sylon hippolytes Columbellidae Amphissa columbiana Amphissa versicolor Conidae Propebela fidicula Propebela miona Corambidae Corambe steinbergae Corellidae Chelyosoma productum Corella inflata Corophiidae Cheiriphotis megacheles Corycaeidae Corycaeus anglicus Corynidae Sarsia princeps Stauridiosarsia cliffordi Crangonidae Crangon alaskensis Mesocrangon munitella Metacrangon munita Metacrangon spinosissima Neocrangon communis Paracrangon echinata Rhynocrangon alata Crangonyctidae Crangonyx richmondensis Cratenemertidae Nipponnemertes bimaculata Cribrilinidae Cribrilaria californiensis Crisiidae Crisia maxima Crisia pugeti Filicrisia franciscana Cryptoniscidae Liriopsis pygmaea Cucumariidae Cucumaria miniata Cucumaria pallida Cucumaria piperata Cucumaria pseudocurata Pseudocnus curatus Pseudocnus lubricus Pseudothyone levini Thyonidium kurilensis Cuspidariidae Cardiomya pectinata Cyaneidae Cyanea capillata Cylindrostomidae Vorticeros praedatorium Cymothoidae Elthusa californica Cyphocarididae Cyphocaris challengeri Cystiscidae Granulina margaritula Dendronotidae Dendronotus diversicolor Dendronotus iris Dendronotus kamchaticus Dendronotus subramosus Dendronotus venustus Dendrophylliidae Balanophyllia elegans Dentaliidae Dentalium pretiosum Desmacellidae Biemna rhadia Dexaminidae Atylus tridens Polycheria osborni Diastylidae Diastylopsis dawsoni Dictyonellidae Stylissa stipitata Dicyemidae Dicyema apollyoni Didemnidae Trididemnum alexi Diogenidae Paguristes turgidus Diosaccidae Amphiascopsis cinctus Diosaccus spinatus Dipleurosomatidae Dipleurosoma typicum Dironidae Dirona albolineata Dirona pellucida Discodorididae Diaulula odonoghuei Diaulula sandiegensis Geitodoris heathi Dorididae Doris montereyensis Dorvilleidae Parougia caeca Dotoidae Doto amyra Doto columbiana Doto kya Echinasteridae Henricia asthenactis Henricia leviuscula Henricia pumila Echiuridae Arhynchite pugettensis Ectinosomatidae Ectinosoma melaniceps Eirenidae Eutonina indicans Ellobiidae Myosotella myosotis Emplectonematidae Emplectonema buergeri Emplectonema gracile Paranemertes peregrina Paranemertes sanjuanensis Enteroctopodidae Muusoctopus leioderma Epialtidae Pugettia gracilis Pugettia producta Epizoanthidae Epizoanthus scotinus Eudendriidae Eudendrium californicum Eulimidae Enteroxenos parastichopoli Melanella micans Polygireulima rutila Eunicidae Eunice valens Leodice valens Euphausiidae Euphausia pacifica Thysanoessa raschii Euplokamididae Euplokamis dunlapae Eusiridae Paramoera bousfieldi Paramoera mohri Facelinidae Hermissenda crassicornis Fissurellidae Cranopsis cucullata Diodora aspera Puncturella cooperi Puncturella galeata Puncturella multistriata Flabelligeridae Pherusa neopapillata Flabellinidae Flabellina verrucosa Orienthella trilineata Frondiporidae Filifascigera fasciculata Galatheidae Munida quadrispina Gastropteridae Gastropteron pacificum Glyceridae Glycera americana Hemipodia simplex Hemipodus borealis Glycymerididae Glycymeris septentrionalis Glycymeris subobsoleta Golfingiidae Golfingia vulgaris Thysanocardia nigra Goniadidae Glycinde picta Goniasteridae Mediaster aequalis Goniodorididae Ancula gibbosa Gorgonocephalidae Gorgonocephalus eucnemis Halcampidae Halcampa decemtentaculata Haleciidae Halecium wilsoni Halichondriidae Halichondria bowerbanki Halichondria panicea Haliotididae Haliotis kamtschatkana Halisarcidae Halisarca sacra Haloclavidae Peachia quinquecapitata Haminoeidae Haminoea japonica Haminoea vesicula Haplotrematidae Ancotrema voyanum Harpacticidae Harpacticus septentrionalis Harpacticus uniremis Haustoriidae Eohaustorius washingtonianus Hemithirididae Hemithiris psittacea Hesionidae Oxydromus pugettensis Podarke pugettensis Podarkeopsis glabrus Heteroporidae Heteropora alaskensis Hexabothriidae Protocotyle grisea Hiatellidae Hiatella arctica Panopea generosa Hippolytidae Eualus pusiolus Eualus subtilis Eualus suckleyi Heptacarpus brevirostris Heptacarpus kincaidi Heptacarpus pugettensis Heptacarpus sitchensis Heptacarpus stimpsoni Heptacarpus stylus Heptacarpus tridens Lebbeus groenlandicus Spirontocaris lamellicornis Spirontocaris prionota Hyalellidae Allorchestes bellabella Hyalidae Apohyale pugettensis Parallorchestes americana Parallorchestes cowani Hydractiniidae Hydractinia milleri Schuchertinia milleri Hyperiidae Hyperia medusarum Hyperoche medusarum Idoteidae Idotea urotoma Pentidotea resecata Pentidotea wosnesenskii Isaeidae Protomedeia grandimana Ischnochitonidae Cyanoplax berryana Cyanoplax caverna Cyanoplax dentiens Dendrochiton flectens Lepidochitona dentiens Lepidozona interstincta Lepidozona mertensii Lepidozona retiporosa Lepidozona willetti Tonicella insignis Tonicella lineata Tonicella undocaerulea Tripoplax trifida Ischyroceridae Ericthonius brasiliensis Ericthonius rubricornis Ischyrocerus anguipes Jassa staudei Isodiametridae Otocelis luteola Janiridae Ianiropsis kincaidi Janiralata occidentalis Janolidae Janolus fuscus Lafoeidae Grammaria borealis Lafoea dumosa Lamellariidae Marsenina stearnsii Lasaeidae Kellia suborbicularis Lepetidae Cryptobranchia concentrica Leptochitonidae Leptochiton rugatus Lernaeopodidae Clavella adunca Clavella parva Lichenoporidae Disporella separata Lichenopora hispida Ligiidae Ligia pallasii Limacidae Deroceras reticulatum Lineidae Cerebratulus longiceps Cerebratulus marginatus Cerebratulus montgomeryi Micrura verrilli Micrura wilsoni Lithodidae Acantholithodes hispidus Cryptolithodes sitchensis Cryptolithodes typicus Hapalogaster mertensii Lopholithodes mandtii Oedignathus inermis Phyllolithodes papillosus Placetron wosnessenskii Rhinolithodes wosnessenskii Littorinidae Lacuna marmorata Lacuna variegata Lacuna vincta Littorina saxatilis Littorina scutulata Littorina sitkana Loliginidae Doryteuthis opalescens Lottiidae Collisella digitalis Collisella pelta Discurria insessa Lottia digitalis Lottia instabilis Lottia pelta Lottia scutum Scurria mesoleuca Loxosomatidae Loxosoma davenporti Lucernariidae Haliclystus sanjuanensis Lucinidae Lucinoma annulata Parvilucina tenuisculpta Luidiidae Luidia foliolata Lumbrineridae Eranno bicirrata Lumbrineris inflata Lumbrineris japonica Lyonsiidae Entodesma navicula Lyonsia californica Mytilimeria nuttalli Lysianassidae Lepidepecreum gurjanovae Macronassa macromera Orchomene pinguis Orchomenella minuta Mactridae Tresus capax Tresus nuttallii Maeridae Ceradocus spinicauda Ceradocus spinicaudus Maldanidae Axiothella rubrocincta Clymenura gracilis Maldanella harai Praxillella pacifica Meiomeniidae Meiomenia swedmarki Melicertidae Melicertum octocostatum Melitidae Desdimelita californica Desdimelita desdichada Desdimelita microdentata Maera danae Maera fusca Maera jerrica Maera similis Megamoera dentata Megamoera subtener Melita appendiculata Melita oregonensis Metridiidae Metridium senile Microcionidae Antho lambei Clathria pennata Miraciidae Amonardia normani Amonardia perturbata Sarsamphiascus undosus Mitrocomidae Mitrocomella polydiademata Montacutidae Kurtiella tumida Mopaliidae Katharina tunicata Mopalia cirrata Mopalia ferreirai Mopalia hindsii Mopalia kennerleyi Mopalia lignosa Mopalia muscosa Mopalia sinuata Mopalia spectabilis Mopalia swanii Mopalia vespertina Muricidae Boreotrophon clathratus Boreotrophon multicostatus Boreotrophon orpheus Ceratostoma foliatum Nucella canaliculata Nucella emarginata Nucella lamellosa Scabrotrophon lasius Trophonopsis clathratus Trophonopsis orpheus Myidae Mya arenaria Mya truncata Mysidae Archaeomysis grebnitzkii Inusitatomysis insolita Mytilidae Crenella decussata Modiolus modiolus Musculus discors Musculus niger Mytilus californianus Mytilus edulis Mytilus galloprovincialis Solamen columbianum Myxillidae Myxilla incrustans Nannastacidae Cumella vulgaris Nassariidae Nassarius fossatus Nassarius mendicus Naticidae Cryptonatica affinis Cryptonatica aleutica Euspira pallida Nephtyidae Nephtys caecoides Nephtys ciliata Nephtys ferruginea Nereididae Alitta williami Cheilonereis cyclurus Nereis eakini Nereis vexillosa Platynereis bicanaliculata Notarchidae Phyllaplysia taylori Notodelphyidae Notodelphys affinis Nuculanidae Nuculana cellulita Nuculana minuta Nuculidae Acila castrensis Ennucula tenuis Nymphonidae Nymphon pixellae Oceanidae Rhizogeton nudus Octopodidae Octopus rubescens Oedicerotidae Americhelidium rectipalmum Oikopleuridae Oikopleura dioica Oikopleura labradoriensis Olindiidae Eperetmus typus Gonionemus vertens Onchidiidae Onchidella borealis Onchidorididae Acanthodoris atrogriseata Acanthodoris hudsoni Acanthodoris nanaimoensis Diaphorodoris lirulatocauda Onchidoris bilamellata Onchidoris muricata Onuphidae Diopatra ornata Mooreonuphis stigmatis Onuphis elegans Opheliidae Armandia brevis Ophelina acuminata Ophiactidae Ophiopholis kennerlyi Orbiniidae Naineris dendritica Scoloplos acmeceps Scoloplos armiger Oregoniidae Chionoecetes bairdi Hyas lyratus Oregonia gracilis Oweniidae Owenia fusiformis Pachastrellidae Poecillastra rickettsi Paguridae Discorsopagurus schmitti Elassochirus gilli Elassochirus tenuimanus Labidochirus splendescens Pagurus aleuticus Pagurus beringanus Pagurus capillatus Pagurus dalli Pagurus granosimanus Pagurus hirsutiusculus Pagurus kennerlyi Pagurus ochotensis Pandalidae Pandalopsis dispar Pandalopsis lucidirimicola Pandalus borealis Pandalus danae Pandalus eous Pandalus goniurus Pandalus hypsinotus Pandalus platyceros Pandalus stenolepis Pandaridae Demoleus heptapus Pandeidae Catablema nodulosa Leuckartiara longicalcar Neoturris breviconis Stomotoca atra Pandoridae Pandora bilirata Pandora filosa Pandora wardiana Panopeidae Lophopanopeus bellus Lophopanopeus diegensis Paraonidae Acmira catherinae Pariambidae Deutella californica Pectinidae Chlamys hastata Chlamys islandica Chlamys rubida Crassadoma gigantea Peltogastridae Peltogaster boschmai Pennatulidae Ptilosarcus gurneyi Perophoridae Perophora annectens Petrosiidae Xestospongia hispida Phascolosomatidae Phascolosoma agassizii Pholadidae Penitella penita Pholoidae Pholoe minuta Phoronidae Phoronis ijimai Phoronopsis harmeri Phoxichilidiidae Anoplodactylus viridintestinalis Phoxichilidium femoratum Phoxocephalidae Cephalophoxoides homilis Eobrolgus chumashi Eobrolgus spinosus Heterophoxus affinis Heterophoxus oculatus Rhepoxynius pallidus Phyllodocidae Eumida longicornuta Notophyllum imbricatum Notophyllum tectum Pterocirrus montereyensis Phyllophoridae Havelockia benti Pentamera pediparva Pentamera pseudocalcigera Pentamera rigida Pilargidae Pilargis maculata Pinnotheridae Fabia subquadrata Pinnixa faba Pinnixa littoralis Pinnixa scamit Pinnixa schmitti Pinnotheres pugettensis Scleroplax granulata Scleroplax tubicola Piscicolidae Heptacyclus virgatus Pisidae Chorilia longipes Scyra acutifrons Plagioeciidae Plagioecia tortuosa Pleurobrachiidae Pleurobrachia bachei Pleustidae Gnathopleustes serratus Thorlaksonius grandirostris Trachypleustes trevori Plumulariidae Plumularia lagenifera Plumularia setacea Podoceridae Podocerus cristatus Pollicipedidae Pollicipes polymerus Polyceridae Limacia cockerelli Triopha catalinae Triopha maculata Triopha modesta Polyclinidae Alcyonidium pedunculatum Alcyonidium polyoum Aplidium californicum Aplidium solidum Polynoidae Arctonoe fragilis Arctonoe pulchra Arctonoe vittata Eunoe FHL1 Gaudichaudius iphionelloides Halosydna brevisetosa Harmothoe extenuata Harmothoe imbricata Hermadion truncata Lepidasthenia alba Lepidasthenia longicirrata Lepidonotus spiculus Polyorchidae Polyorchis penicillatus Pontogeneiidae Pontogeneia rostrata Poraniidae Dermasterias imbricata Porcellanidae Pachycheles rudis Petrolisthes eriomerus Porcellionidae Porcellio scaber Priapulidae Priapulus caudatus Proboscidactylidae Proboscidactyla flavicirrata Protellidae Tritella laevis Psammobiidae Nuttallia obscurata Pseudoceritidae Pseudoceros canadensis Psolidae Psolidium bidiscum Psolus chitonoides Pterasteridae Pteraster tesselatus Ptychoderidae Glossobalanus berkeleyi Pulsellidae Pulsellum salishorum Pycnogonidae Pycnogonum stearnsi Pyramidellidae Odostomia engbergi Pyuridae Boltenia villosa Halocynthia igaboja Pyura haustor Pyura mirabilis Ranellidae Fusitriton oregonensis Rhopalonematidae Aglantha digitale Rissoidae Alvania compacta Romancheinidae Arctonula arctica Rostangidae Rostanga pulchra Sabellariidae Neosabellaria cementarium Sabellidae Bispira crassicornis Chone aurantiaca Chone magna Megalomma splendida Myxicola infundibulum Pseudopotamilla socialis Schizobranchia insignis Scalibregmatidae Hyboscolex pacificus Scalibregma californicum Scalibregma inflatum Scalpellidae Hamatoscalpellum columbianum Sclerodactylidae Eupentacta pseudoquinquesemita Eupentacta quinquesemita Scrupocellariidae Caberea ellisii Tricellaria ternata Semelidae Semele rubropicta Sepiolidae Rossia pacifica Serpulidae Circeis spirillum Crucigera zygophora Pseudochitinopoma occidentalis Serpula columbiana Sertulariidae Abietinaria abietina Abietinaria greenei Hydrallmania distans Sertularella polyzonias Sertularia argentea Sertularia mirabilis Symplectoscyphus tricuspidatus Sigalionidae Sthenelais berkeleyi Solasteridae Crossaster papposus Solaster dawsoni Solaster endeca Solenidae Solen sicarius Solmundaeginidae Solmundaegina nematophora Sphaeromatidae Exosphaeroma amplicauda Gnorimosphaeroma oregonensis Spionidae Paraprionospio pinnata Prionospio lighti Spiophanes berkeleyorum Sternaspidae Sternaspis affinis Sternaspis scutata Stichopodidae Apostichopus californicus Stiligeridae Olea hansineensis Placida dendritica Strongylocentrotidae Mesocentrotus franciscanus Strongylocentrotus droebachiensis Strongylocentrotus pallidus Styelidae Cnemidocarpa finmarkiensis Styela gibbsii Stylasteridae Stylantheca papillosa Stylaster venustus Stylochidae Kaburakia excelsa Suberitidae Homaxinella amphispicula Suberites domuncula Syllidae Epigamia magna Myrianida flava Proceraea hanssoni Proceraea nigropunctata Proceraea okadai Syllis elongata Syllis stewarti Synaptidae Leptosynapta clarki Leptosynapta transgressor Synopiidae Bruzelia tuberculata Talitridae Traskorchestia georgiana Traskorchestia traskiana Tellinidae Ameritella modesta Macoma brota Macoma carlottensis Macoma elimata Macoma golikovi Macoma indentata Macoma inquinata Macoma nasuta Macoma secta Rexithaerus indentata Terebellidae Eupolymnia heterobranchia Neoamphitrite robusta Pista brevibranchiata Pista wui Thelepus hamatus Thelepus japonicus Terebrataliidae Terebratalia transversa Teredinidae Bankia setacea Tergipedidae Cuthona concinna Cuthona divae Trinchesia albocrusta Tethydidae Melibe leonina Tetillidae Craniella villosa Thalestridae Dactylopusia vulgaris Rhynchothalestris helgolandica Thoridae Lebbeus grandimanus Thraciidae Thracia trapezoides Tortanidae Tortanus discaudatus Trichobranchidae Terebellides horikoshii Terebellides stroemii Trichydridae Trichydra pudica Tritoniidae Tochuina gigantea Tritonia festiva Trochidae Lirularia lirulata Margarites pupillus Tubulanidae Tubulanus sexlineatus Tubulariidae Ectopleura larynx Hybocodon prolifer Tubularia indivisa Tubuliporidae Tubulipora pacifica Turbinidae Homalopoma luridum Turridae Antiplanes catalinae Typhloplanidae Celleporella hyalina Celleporina robertsoniae Celleporina ventricosa Integripelta bilabiata Lagenicella punctulata Leieschara coarctata Phidolopora pacifica Porella porifera Rhynchozoon tumulosum Ulmaridae Aurelia labiata Phacellophora camtschatica Umagillidae Anoplodium hymanae Syndisyrinx franciscanus Upogebiidae Upogebia pugettensis Valenciniidae Baseodiscus princeps Varunidae Hemigrapsus oregonensis Velutinidae Limneria prolongata Veneridae Callithaca tenerrima Compsomyax subdiaphana Gemma gemma Humilaria kennerleyi Leukoma staminea Nutricola lordi Nutricola tantilla Saxidomus gigantea Venerupis philippinarum Vermetidae Petaloconchus compactus Vesiculariidae Amathia gracilis Bowerbankia gracilis Yoldiidae Yoldia myalis Yoldia scissurata Yoldia seminuda Zonitidae Oxychilus cellarius
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