Bodenlebende wirbellose Meerestiere (Makrozoobenthos)

German Red List

Rachor, E.; Bönsch, R.; Boos, K.; Gosselck, F.; Grotjahn, M.; Günther, C.-P.; Gusky, M.; Gutow, L.; Heiber, W.; Jantschik, P.; Krieg, H.-J.; Krone, R.; Nehmer, P.; Reichert, K.; Reiss, H.; Schröder, A.; Witt, J. & Zettler, M.L. (2013): Rote Liste und Artenliste der bodenlebenden wirbellosen Meerestiere. – In: Becker, N., Haupt, H., Hofbauer, N., Ludwig, G. & Nehring, S. (Bearb.): Rote Liste gefährdeter Tiere, Pflanzen und Pilze Deutschlands. Band 2: Meeresorganismen. – Bonn (Bundesamt für Naturschutz). – Naturschutz und Biologische Vielfalt 70 (2): 81–176.

Comment: The German national Red List threat categories do not correspond with the international IUCN categories.

Checklist

Scientific name German name Threat Category
A
Abietinaria abietina (L., 1758) Data Deficient
Abludomelita obtusata (Montagu, 1813) Not Threatened
Abra alba (W. Wood, 1802) Weisse Tellmuschel; Kleine Pfeffermuschel Not Threatened
Abra nitida (O.F. Müller, 1776) Glänzende Tellmuschel Threat of Unknown Extent
Abra prismatica (Montagu, 1808) Lange Pfeffermuschel Data Deficient
Abra tenuis (Montagu, 1803) Data Deficient
Acanthocardia echinata (L., 1758) Dornige Herzmuschel Threat of Unknown Extent
Acanthodoris pilosa (Abildgaard in Müller, 1789) Weichwarzige Sternschnecke Not Threatened
Acaulis primarius Stimpson, 1854 Data Deficient
Achelia echinata Hodge, 1864 Not Threatened
Achelia hispida Hodge, 1864 Extremely Rare
Acidostoma obesum (Bate & Westwood, 1861) Not Threatened
Aclis minor (Brown, 1827) Kleine Spitzschnecke Not Threatened
Acrocnida brachiata (Montagu, 1804) Langarmiger Schlangenstern Not Threatened
Acteon tornatilis (L., 1758) Gemeine Drechselschnecke Near Threatened
Actinia equina (L, 1758) Pferdeaktinie, Purpurrose Data Deficient
Actinothoe anguicoma (Price in Johnston, 1847) Data Deficient
Actinothoe sphyrodeta (Gosse, 1858) Data Deficient
Adalaria proxima (Alder & Hancock, 1854) Rote Sternschnecke Not Threatened
Adamsia palliata (O.F.Müller, 1776) Mantelaktinie Data Deficient
Aeginina longicornis (Kroyer, 1843) Data Deficient
Aeolidia papillosa (L., 1761) Breitwarzige Fadenschnecke Near Threatened
Aeolidiella glauca (Alder & Hancock, 1845) Braungepunktete Fadenschnecke Not Threatened
Aeolosoma hemprichi Ehrenberg, 1831 Data Deficient
Aequipecten opercularis (L., 1758) Gedeckte Kammmuschel Extremely Rare
Aetea truncata (Landsborough, 1852) Extremely Rare
Aglaophamus agilis (Langerhans,1880) Not Threatened
Aglaophamus pulcher (Rainer, 1990) Extremely Rare
Akera bullata O.F. Müller, 1776 Gemeine Kugelschnecke Not Threatened
Aktedrilus monospermathecus Knöllner, 1935 Data Deficient
Alcyonidioides mytili (Dalyell, 1848) Data Deficient
Alcyonidium diaphanum (Hudson, 1778) Not Threatened
Alcyonidium gelatinosum (L., 1761) Gallert-Moostierchen Threatened
Alcyonidium hirsutum (Fleming, 1828) Data Deficient
Alcyonidium mamillatum Alder, 1857 Extremely Rare
Alcyonidium parasiticum (Fleming, 1828) Threat of Unknown Extent
Alcyonidium polyoum (Hassall, 1841) Data Deficient
Alcyonium digitatum L., 1758 Tote Manneshand Threatened
Alcyonium glomeratum (Hassall, 1843) Highly Threatened
Alderia modesta (Lovén, 1844) Salzwiesen-Nacktschnecke Highly Threatened
Alentia gelatinosa (M. Sars, 1835) Extinct or Lost
Alitta succinea (Frey & Leuckart, 1847)  Data Deficient
Alitta virens (M. Sars, 1835) Grüner Seeringelwurm Data Deficient
Alkmaria romijni Horst, 1919 Threatened
Allomelita pellucida (Sars, 1882) Extremely Rare
Alvania lactea (Michaud, 1832) Milchweiße Kleinschnecke Data Deficient
Amauropsis islandica (Gmelin, 1791) Isländische Bohrschnecke Highly Threatened
Ampelisca brevicornis (Costa, 1853) Not Threatened
Ampelisca diadema (Costa, 1853) Data Deficient
Ampelisca gibba G.O. Sars, 1883 Extremely Rare
Ampelisca macrocephala Liljeborg, 1852 Not Threatened
Ampelisca spinipes Boeck, 1861 Not Threatened
Ampelisca tenuicornis Liljeborg, 1855 Not Threatened
Ampelisca typica (Bate, 1856) Threatened
Ampharete acutifrons (Grube, 1860) Not Threatened
Ampharete baltica Eliason, 1955 Not Threatened
Ampharete falcata Eliason, 1955 Not Threatened
Ampharete finmarchica (M. Sars, 1864) Not Threatened
Amphiblestrum auritum (Hincks, 1877) Data Deficient
Amphiblestrum flemingii (Busk, 1854) Data Deficient
Amphiblestrum solidum (Packard, 1863) Data Deficient
Amphichaeta leydigi Tauber, 1879 Data Deficient
Amphichaeta sannio Kallstenius, 1892 Threat of Unknown Extent
Amphicteis gunneri (M. Sars, 1835) Not Threatened
Amphicteis midas (Gosse, 1855) Not Threatened
Amphictene auricoma (O.F. Müller, 1776) Gebogener Köcherwurm Not Threatened
Amphilectus fucorum (Esper, 1794) Extremely Rare
Amphilectus lobatus (Montagu, 1818) Data Deficient
Amphilochoides boecki Sars, 1892 Data Deficient
Amphilochus manudens Bate, 1862 Extremely Rare
Amphilochus neapolitanus Della Valle, 1893 Near Threatened
Amphipholis squamata (Delle Chiaje, 1828) Schuppiger Schlangenstern Near Threatened
Amphitrite cirrata (O.F. Müller, 1771 in 1776) Threat of Unknown Extent
Amphitritides gracilis (Grube, 1860) Extinct or Lost
Amphiura chiajei Forbes, 1843 Grober Schlangenstern Extremely Rare
Amphiura filiformis (O.F. Müller, 1776) Fadenarm-Schlangenstern, Zierlicher Schlangenstern Not Threatened
Ampithoe ramondi Audouin, 1826 Data Deficient
Ampithoe rubricata (Montagu, 1818) Not Threatened
Ancula gibbosa (Risso, 1818) Weiße Griffelschnecke Not Threatened
Anguinella palmata van Beneden, 1845 Data Deficient
Anobothrus gracilis (Malmgren, 1865) Not Threatened
Anomia ephippium L., 1758 Sattelmuschel Extremely Rare
Anonyx lilljeborgii Boeck, 1870 Not Threatened
Anonyx sarsi Steele & Brunel, 1968 Extremely Rare
Anoplodactylus angulatus (Dohrn, 1881) Extremely Rare
Anoplodactylus petiolatus (Krøyer, 1844) Not Threatened
Anoplodactylus pygmaeus (Hodge, 1864) Not Threatened
Antalis dentalis (L., 1758) Elefantenzahn Data Deficient
Aonides oxycephala (M. Sars, 1862) Data Deficient
Aonides paucibranchiata Southern, 1914 Not Threatened
Aora gracilis (Bate, 1857) Not Threatened
Aora typica Krøyer, 1845 Data Deficient
Aphelochaeta filiformis (Keferstein, 1862) Data Deficient
Aphelochaeta marioni (Saint Joseph, 1894) Not Threatened
Apherusa bispinosa (Bate, 1857) Threat of Unknown Extent
Apherusa clevei G.O. Sars, 1904 Extremely Rare
Apherusa henneguyi Chevreux & Fage, 1925 Data Deficient
Apherusa jurinei (Milne-Edwards, 1830) Extremely Rare
Apherusa ovalipes Norman & Scott, 1906 Not Threatened
Aphrodita aculeata L., 1761 Seemaus, Filzwurm Data Deficient
Apistobranchus tullbergi (Théel, 1879) Not Threatened
Aplidium nordmanni (Milne-Edwards, 1841) Not Evaluated
Aplidium turbinatum (Savigny, 1816) Extremely Rare
Aplysia punctata (Cuvier, 1803) Seehase Extremely Rare
Apocorophium lacustre (Vanhöffen, 1911) Not Threatened
Apohyale prevosti (Milne-Edwards, 1830) Extremely Rare
Aporrhais pespelecani (L., 1758) Pelikansfuß Threat of Unknown Extent
Arcopagia crassa (Pennant, 1777) Dickschalige Tellmuschel Not Threatened
Arctica islandica (L., 1767) Islandmuschel Threatened
Arenicola marina (L., 1758) Sandpier, Köderwurm Not Threatened
Argissa hamatipes (Norman, 1869) Not Threatened
Aricidea catherinae Laubier, 1967 Data Deficient
Aricidea cerrutii Laubier, 1966 Data Deficient
Aricidea minuta Southward, 1956 Not Threatened
Aricidea roberti Hartley, 1984 Not Threatened
Aricidea simonae Laubier & Ramos, 1974 Not Threatened
Aricidea suecica Eliason, 1920 Not Threatened
Artacama proboscidea Malmgren, 1866 Not Threatened
Ascidia conchilega O.F. Müller, 1776 Data Deficient
Ascidia virginea O.F. Müller, 1776 Extinct or Lost
Ascidiella aspersa (O.F. Müller, 1776) Not Threatened
Ascidiella scabra (O.F. Müller, 1776) Extremely Rare
Asperarca nodulosa (O.F. Müller, 1776) Knotige Archenmuschel Extremely Rare
Aspidelectra melolontha (Landsborough, 1852) Data Deficient
Assiminea grayana Flemming, 1828 Kegelige Marschschnecke Threat of Unknown Extent
Astacilla longicornis (Sowerby, 1806) Extremely Rare
Astarte borealis (Schumacher, 1817) Nördliche Astarte Threat of Unknown Extent
Astarte elliptica (Brown, 1827) Elliptische Astarte Threat of Unknown Extent
Astarte falsteri Høpner Petersen, 2001 Falster-Astarte Data Deficient
Astarte montagui (Dillwyn, 1817) Kugel-Astarte Threatened
Asterias rubens L., 1758 Gemeiner Seestern Not Threatened
Astropecten aranciacus (L., 1758) Roter Kammstern Extinct or Lost
Astropecten irregularis (Pennant, 1777) Nordischer Kammstern Threat of Unknown Extent
Athanas nitescens (Leach, 1813) Data Deficient
Atherospio guillei (Laubier & Ramos, 1974) Extremely Rare
Atyaephyra desmarestii (Millet, 1831) "Süßwassergarnele" Not Evaluated
Atylus guttatus (Costa, 1851) Data Deficient
Atylus swammerdami (Milne-Edwards, 1830) Not Threatened
Atylus vedlomensis (Bate & Westwood, 1862) Data Deficient
Autonoe longipes (Liljeborg, 1852) Not Threatened
Axionice maculata (Dalyell, 1853) Data Deficient
Azorinus chamasolen (da Costa, 1778) Not Threatened
B
Balanus balanus (L., 1758) Data Deficient
Balanus crenatus Bruguiére, 1789 Gekerbte Seepocke Not Threatened
Balanus improvisus Darwin, 1854 Not Evaluated
Barnea candida (L., 1758) Weiße Bohrmuschel Not Threatened
Barnea parva (Pennant, 1777) Not Threatened
Bathyporeia elegans Watkin, 1938 Not Threatened
Bathyporeia gracilis Sars, 1891 Data Deficient
Bathyporeia guilliamsoniana (Bate, 1857) Not Threatened
Bathyporeia nana Toulmond, 1966 Data Deficient
Bathyporeia pelagica (Bate, 1856) Not Threatened
Bathyporeia pilosa Lindström, 1855 Not Threatened
Bathyporeia sarsi Watkin, 1938 Not Threatened
Bathyporeia tenuipes Meinert, 1877 Not Threatened
Bela nebula (Montagu, 1803) Perlmutt-Nadelschnecke Not Threatened
Bicellariella ciliata (L., 1758) Extremely Rare
Biemna variantia (Bowerbank, 1858) Extremely Rare
Bimeria vestita Wright, 1859 Data Deficient
Bispira crassicornis (Sars, 1851) Not Threatened
Bittium reticulatum (da Costa, 1778) Kleine Gitterschnecke Threat of Unknown Extent
Boccardiella ligerica (Ferronière, 1898) Not Threatened
Bodotria arenosa Goodsir, 1843 Threatened
Bodotria pulchella (Sars, 1878) Not Threatened
Bodotria scorpioides (Montagu, 1804) Not Threatened
Boreotrophon truncatus (Ström, 1768) Abgestutzte Purpurschnecke Highly Threatened
Botrylloides leachii (Savigny, 1816) Extremely Rare
Botryllus schlosseri (Pallas, 1766) Not Threatened
Bougainvillia britannica (Forbes, 1841) Data Deficient
Bougainvillia muscoides (Sars, 1846) Extremely Rare
Bougainvillia muscus (Allman, 1863) Data Deficient
Bougainvillia principis (Steenstrup, 1850) Data Deficient
Bougainvillia pyramidata (Forbes & Goodsir, 1853) Data Deficient
Bowerbankia gracilis Leidy, 1855 Not Threatened
Bowerbankia imbricata (Adams, 1798) Not Threatened
Bowerbankia pustulosa (Ellis & Solander, 1786) Extremely Rare
Brada villosa (Rathke, 1843) Not Threatened
Branchiomma bombyx (Dalyell, 1853) Extremely Rare
Branchiostoma lanceolatum (Pallas, 1774) Lanzettfischchen, Amphioxus Threat of Unknown Extent
Brania pusilla (Dujardin, 1851) Extremely Rare
Brissopsis lyrifera (Forbes, 1841) Leier-Herzigel Threat of Unknown Extent
Buccinum undatum L., 1758 Wellhornschnecke Highly Threatened
Bugula angustiloba (Lamarck, 1816) Extremely Rare
Bugula plumosa (Pallas, 1766) Not Threatened
Bugula stolonifera Ryland, 1960 Extremely Rare
Bugula turbinata Alder, 1857 Extremely Rare
Bulbella abscondita Braem, 1951 Data Deficient
Byblis gaimardii (Krøyer, 1846) Data Deficient
Bylgides sarsi (Kinberg in Malmgren, 1866) Not Threatened
C
Caberea ellisii (Fleming, 1814) Extinct or Lost
Cadlina laevis (L., 1767) Glatte Prachtsternschnecke Not Threatened
Callianassa subterranea (Montagu, 1808) Maulwurfskrebs Not Threatened
Calliopaea bellula d'Orbigny, 1837 Schwarzmelierte Schlundsackschnecke Not Threatened
Calliopius laeviusculus (Krøyer, 1838) Not Threatened
Calliostoma zizyphinum (L., 1758) Bunte Kreiselschnecke Threat of Unknown Extent
Callipallene brevirostris (Johnston, 1837) Extremely Rare
Callochiton septemvalvis (Montagu, 1803) Rostrote Käferschnecke Extinct or Lost
Callopora dumerilii (Audouin, 1826) Extremely Rare
Callopora lineata (L., 1767) Not Threatened
Callopora rylandi Bobin & Prenant, 1965 Data Deficient
Calycella gracilis Hartlaub, 1897 Data Deficient
Calycella syringa (L., 1767) Not Threatened
Campanularia flexiosa (Hincks, 1861) Data Deficient
Campanularia hincksii Alder, 1856 Data Deficient
Campanularia volubilis (L., 1758) Extremely Rare
Campylaspis costata (G.O. Sars, 1865) Data Deficient
Cancer bellianus Johnson, 1861  Extremely Rare
Cancer pagurus L., 1758 Taschenkrebs Not Threatened
Capitella capitata (Fabricius, 1780) Not Threatened
Capitellides giardi Mesnil, 1897 Not Threatened
Capitomastus minimus (Langerhans, 1881) Not Threatened
Caprella equilibra Say, 1818 Data Deficient
Caprella linearis (L., 1767) Gespenstkrebschen Near Threatened
Caprella mutica Schurin, 1935 Not Evaluated
Caprella penantis Leach, 1814 Extremely Rare
Caprella septentrionalis Krøyer, 1838 Not Threatened
Caprella tuberculata Guérin, 1836 Extremely Rare
Capulus ungaricus (L., 1758) Ungarnkappe Data Deficient
Carcinus maenas (L., 1758) Strandkrabbe Not Threatened
Caridion gordoni (Bate, 1858) Extremely Rare
Caulleriella bioculata (Keferstein, 1862) Extremely Rare
Caulleriella killariensis (Southern, 1914) Data Deficient
Cellepora pumicosa (Pallas, 1766) Extremely Rare
Celleporella hyalina (L., 1767) Extremely Rare
Cerastoderma edule (L., 1758) Essbare Herzmuschel Not Threatened
Cerastoderma glaucum (Bruguière, 1789) Lagunen-Herzmuschel Not Threatened
Ceratocephale loveni Malmgren, 1867 Data Deficient
Cerianthus lloydii Gosse, 1859 Near Threatened
Cernosvitoviella immota (Knöllner, 1935) Data Deficient
Chaetoderma nitidulum Lovén, 1844 Data Deficient
Chaetogaster diaphanus (Gruithuisen, 1828) Data Deficient
Chaetogaster limnaei von Baer, 1827 Data Deficient
Chaetopterus variopedatus Cuvier, 1827 Data Deficient
Chaetozone caputesocis (Saint Joseph, 1894) Extremely Rare
Chaetozone christiei Malmgren, 1867 Not Threatened
Chaetozone setosa Malmgren, 1867 Not Threatened
Chalinula limbata (Montagu, 1818) Data Deficient
Chalinula loosanoffi (Hartman, 1958) Extremely Rare
Chamelea gallina (L., 1758) Venusmuschel Threat of Unknown Extent
Cheirocratus assimilis (Lilljeborg, 1852) Not Threatened
Cheirocratus intermedius G.O. Sars, 1894 Not Threatened
Cheirocratus sundevallii (Rathke, 1843) Not Threatened
Chelicorophium curvispinum (G.O. Sars, 1895) Not Evaluated
Chelura terebrans Philippi, 1839 Data Deficient
Chone duneri Malmgren, 1867 Threat of Unknown Extent
Chone infundibuliformis Krøyer, 1856 Threat of Unknown Extent
Chorizopora brongniartii (Audouin, 1826) Extremely Rare
Chrysallida interstincta (J. Adams, 1797) Stumpfe Pyramidenschnecke Not Threatened
Chrysallida multicostata (Jeffreys, 1884) Extinct or Lost
Chrysallida pellucida (Dillwyn, 1817) Durchscheinende Pyramidenschnecke Not Threatened
Chthamalus stellatus (Poli, 1795) Stern-Seepocke Data Deficient
Ciona intestinalis (L., 1767) Schlauch-Seescheide Not Threatened
Circeis spirillum (L., 1758) Extremely Rare
Cirolana cranchi Leach, 1818 Data Deficient
Cirratulus cirratus (O.F. Müller, 1776) Extremely Rare
Clausinella fasciata (da Costa, 1778) Gebänderte Venusmuschel Extremely Rare
Clava multicornis (Forsskål, 1775) Data Deficient
Clavelina lepadiformis (O.F. Müller, 1776) Data Deficient
Cliona lobata Hancock, 1849 Extremely Rare
Clione celata Grant, 1826 Bohrschwamm Highly Threatened
Clitellio arenarius (O.F. Müller, 1776) Threat of Unknown Extent
Clymenura leiopygos (Grube, 1860) Data Deficient
Clytia hemisphaerica (L., 1767) Data Deficient
Cochlodesma praetenue (Pulteney, 1799) Fragile Löffelmuschel Not Threatened
Cognettia glandulosa (Michaelsen, 1888) Data Deficient
Cognettia sphagnetorum (Veydovsky, 1877) Data Deficient
Colus gracilis (da Costa, 1778) Schlanke Spindelschnecke Data Deficient
Colus jeffreysianus (P. Fischer, 1868) Geschwollene Spindelschnecke Data Deficient
Conopeum reticulum (L., 1767) Not Threatened
Conopeum seurati (Canu, 1928) Data Deficient
Corbula gibba (Olivi, 1792) Korbmuschel Not Threatened
Cordylophora caspia (Pallas, 1771) Not Evaluated
Corophium arenarium Crawford, 1937 Threatened
Corophium multisetosum Stock, 1952 Threat of Unknown Extent
Corophium volutator (Pallas, 1766) Schlickkrebs, Wattkrebs Not Threatened
Corymorpha nutans M. Sars, 1835 Not Threatened
Corymorpha sarsii Steenstrup, 1855 Data Deficient
Coryne eximia Allmann, 1859 Data Deficient
Coryne muscoides (L., 1761) Extremely Rare
Coryne pusilla Gaertner, 1774 Extremely Rare
Coryne vanbenedeni Hincks, 1868 Data Deficient
Coryphella gracilis (Alder & Hancock, 1844) Grazile Fadenschnecke Not Threatened
Corystes cassivelaunus (Pennant, 1777) Maskenkrabbe Not Threatened
Cossura longocirrata Webser & Benedict, 1887 Data Deficient
Crangon allmanni Kinahan, 1857 Not Threatened
Crangon crangon (L., 1758) Granat, Nordseekrabbe Not Threatened
Crassicorophium bonellii (Milne-Edwards, 1830) Not Threatened
Crassicorophium crassicorne (Bruzelius, 1859) Not Threatened
Crassostrea gigas (Thunberg, 1793) Pazifische Auster Not Evaluated
Craterolophus convolvulus (Johnston, 1835) Extremely Rare
Crenella decussata (Montagu, 1808) Gegitterte Crenella Not Threatened
Crepidula fornicata (L., 1758) Pantoffelschnecke Not Evaluated
Cressa dubia (Bate, 1857) Extremely Rare
Cribrilina punctata (Hassall, 1841) Not Threatened
Criodrilus lacuum Hoffmeister, 1854 Data Deficient
Crisia aculeata Hassall, 1841 Extremely Rare
Crisia denticulata (Lamarck, 1816) Extremely Rare
Crisia eburnea (L., 1758) Elfenbeinmoos Not Threatened
Crisidia cornuta (L., 1758) Extremely Rare
Crisiella producta (Smitt, 1865) Data Deficient
Cristatella mucedo Cuvier, 1798 Data Deficient
Crossaster papposus (L., 1767) Seesonne, Sonnenstern Highly Threatened
Cryptosula pallasiana (Moll, 1803) Extremely Rare
Ctenodrilus serratus (Schmidt, 1857) Data Deficient
Cucumaria frondosa (Gunnerus, 1767) Data Deficient
Cumella pygmaea G.O. Sars, 1865 Threat of Unknown Extent
Cumopsis goodsir (van Beneden, 1851) Threatened
Cumopsis longipes Dohrn, 1869 Extremely Rare
Cuspidella grandis Hincks, 1868 Data Deficient
Cuthona amoena (Alder & Hancock, 1845) Blau-Weiß-Rote Cuthona Extremely Rare
Cuthona caerulea (Montagu, 1804) Orange-Grün-Blaue Cuthona Data Deficient
Cuthona concinna (Alder & Hancock, 1843) Silber-blaue Cuthona Data Deficient
Cuthona foliata (Forbes & Goodsir, 1839) Gestreifte Cuthona Extremely Rare
Cuthona gymnota (Couthouy, 1838) Nackte Cuthona Data Deficient
Cuthona nana (Alder & Hancock, 1842) Zwerg-Cuthona Data Deficient
Cuthona pustulata (Alder & Hancock, 1854) Data Deficient
Cuthona rubescens Picton & Brown, 1978 Data Deficient
Cyathura carinata (Krøyer, 1847) Data Deficient
Cylichna alba (Brown, 1827) Weiße Becherschnecke Data Deficient
Cylichna cylindracea (Pennant, 1777) Gemeine Becherschnecke Not Threatened
Cylichnina umbilicata (Montagu, 1803) Data Deficient
D
Deflexilodes subnudus (Norman, 1889) Data Deficient
Dendrodoa grossularia (van Beneden, 1846) Tangbeere Near Threatened
Dendronotus frondosus (Ascanius, 1774) Zottige Bäumchenschnecke Near Threatened
Dero digitata (Müller, 1773) Data Deficient
Deshayesorchestia deshayesii (Audouin, 1826) Threat of Unknown Extent
Devonia perrieri (Malard, 1904) Extremely Rare
Dexamine spinosa (Montagu, 1813) Not Threatened
Dexamine thea Boeck, 1861 Extremely Rare
Diadumene cincta Stephenson, 1925 Not Evaluated
Diadumene lineata (Verrill, 1869) Threat of Unknown Extent
Diaphana minuta T. Brown, 1827 Enggenabelte Zwergfässchenschnecke Not Threatened
Diastylis boecki Zimmer, 1930 Extremely Rare
Diastylis bradyi Norman, 1879 Not Threatened
Diastylis cornuta (Boeck, 1864) Data Deficient
Diastylis laevis Norman, 1869 Not Threatened
Diastylis lucifera (Krøyer, 1841) Data Deficient
Diastylis rathkei (Krøyer, 1841) Not Threatened
Diastylis rugosa Sars, 1865 Data Deficient
Diastylis spinulosa Heller, 1875  Extinct or Lost
Diastylis tumida (Liljeborg, 1855) Extremely Rare
Diastyloides biplicatus (G.O. Sars, 1865) Data Deficient
Dicoryne conferta (Alder, 1856) Data Deficient
Didemnum maculosum (Milne-Edwards, 1841) Extremely Rare
Diogenes pugilator (Roux, 1829) Data Deficient
Diphasia attenuata (Hincks, 1866) Extremely Rare
Diphasia rosacea (L., 1758) Extremely Rare
Diplocirrus glaucus (Malmgren, 1867) Not Threatened
Diplosoma listerianum (Milne-Edwards, 1841) Data Deficient
Diplosoma migrans (Menker & Ax, 1970) Extremely Rare
Dipolydora caulleryi (Mesnil, 1897) Data Deficient
Dipolydora coeca (Ørsted, 1843) Not Threatened
Dipolydora flava Claparède, 1870 Data Deficient
Dipolydora giardi (Mesnil, 1896) Data Deficient
Dipolydora quadrilobata (Jacobi, 1883) Not Threatened
Disporella hispida (Fleming, 1828) Extremely Rare
Dodecaceria concharum Ørsted, 1843 Data Deficient
Donax trunculus L., 1758 Extinct or Lost
Donax vittatus (da Costa, 1778) Sägezähnchen Threat of Unknown Extent
Doris pseudoargus Rapp, 1827 Meerzitrone Extremely Rare
Dosinia exoleta (L., 1758) Artemismuschel Threat of Unknown Extent
Dosinia lupinus (L., 1758) Glatte Artemis Data Deficient
Doto coronata (Gmelin, 1791) Doto Threatened
Doto fragilis (Forbes, 1838) Fragile oder zarte Doto Extremely Rare
Doto tuberculata Lemche, 1976 Extinct or Lost
Drilonereis filum (Claparède, 1868) Extremely Rare
Dulichia falcata (Bate, 1857) Not Threatened
Dynamena pumila (L., 1758) Data Deficient
Dyopedos monacantha (Metzger, 1875) Not Threatened
Dyopedos porrectus (Bate, 1857) Data Deficient
Dysidea fragilis (Montagu, 1818) Extremely Rare
Dysidea pallescens (Schmidt, 1862) Extremely Rare
E
Ebala nitidissima (Montagu, 1803) Glänzende Zwergturmschnecke Data Deficient
Ebalia cranchii Leach, 1817 Not Threatened
Ebalia granulosa Milne-Edwards, 1837 Data Deficient
Ebalia tuberosa (Pennant, 1777) Data Deficient
Ebalia tumefacta (Montagu, 1808) Threatened
Echinocardium cordatum (Pennant, 1777) Kleiner Herzseeigel Not Threatened
Echinocardium flavescens (O.F. Müller, 1776) Nordischer Herzigel Threat of Unknown Extent
Echinocardium pennatifidum Norman, 1868 Großer Herzseeigel Threat of Unknown Extent
Echinocyamus pusillus (O.F. Müller, 1776) Kleiner Schildigel, Zwergseeigel Threat of Unknown Extent
Echinogammarus marinus (Leach, 1815) Data Deficient
Echinogammarus pirloti (Sexton & Spooner, 1940) Data Deficient
Echinogammarus stoerensis (Reid, 1938) Data Deficient
Echinus esculentus L., 1758 Essbarer Seeigel Threat of Unknown Extent
Echiurus echiurus (Pallas, 1767) Quappwurm, Igelwurm Highly Threatened
Ecrobia ventrosa (Montagu, 1803) Bauchige Wattschnecke Threat of Unknown Extent
Ectopleura dumortierii (Van Beneden, 1844) Data Deficient
Ectopleura larynx (Ellis & Solander, 1786) Röhrenpolyp Data Deficient
Edwardsia danica Carlgren, 1921 Data Deficient
Einhornia crustulenta (Pallas, 1766) Not Threatened
Ekmania barthii (Troschel, 1846) Data Deficient
Elasmopus rapax Costa, 1853 Extremely Rare
Electra monostachys (Busk, 1854) Extremely Rare
Electra pilosa (L., 1767) Zottige Seerinde Not Threatened
Elminius modestus Darwin, 1854 Not Evaluated
Elysia viridis (Montagu, 1804) Grüne Samtschnecke Extremely Rare
Enchytraeus albidus Henle, 1837 Data Deficient
Enipo elisabethae McIntosh, 1900 Data Deficient
Enipo kinbergi Malmgren, 1866 Extremely Rare
Ennucula tenuis (Montagu, 1808) Dünnschalige Nussmuschel Not Threatened
Ensis directus (Conrad, 1843) Amerikanische Scheidenmuschel Not Evaluated
Ensis ensis (L., 1758) Schwertförmige Messerscheide Highly Threatened
Ensis magnus Schumacher,1817 Gerade Scheidenmuschel Threatened
Ensis siliqua (L., 1758) Schotenmuschel Threat of Unknown Extent
Ephydatia fluviatilis (L., 1759) Not Evaluated
Ephydatia muelleri (Lieberkühn, 1856) Not Evaluated
Epigamia alexandri (Malmgren, 1867) Data Deficient
Epitonium clathratulum (Kanmacher, 1798) Weiße Wendeltreppe Not Threatened
Epitonium clathrus (L., 1758) Unechte Wendeltreppe Data Deficient
Epitonium dallianum (Verrill & Smith, 1880) Extinct or Lost
Ercolania coerulea Trinchese, 1892  Extinct or Lost
Ericthonius difformis Milne-Edwards, 1830 Data Deficient
Ericthonius punctatus (Bate, 1857) Not Threatened
Erinaceusyllis erinaceus (Claparède, 1863) Data Deficient
Eriocheir sinensis H. Milne-Edwards, 1853 Wollhandkrabbe Not Evaluated
Eriopisa elongata (Bruzelius, 1859) Not Threatened
Escharella immersa (Fleming, 1828) Not Threatened
Escharella variolosa (Johnston, 1838) Extremely Rare
Escharoides coccinea (Abildgaard, 1806) Extinct or Lost
Eteone barbata Malmgren, 1865 Not Threatened
Eteone flava (Fabricius, 1780) Not Threatened
Eteone foliosa Quatrefages, 1866 Not Threatened
Eteone lactea Claparède, 1868 Data Deficient
Eteone longa (Fabricius, 1780) Not Threatened
Eteone pusilla Ørsted, 1843 Data Deficient
Eteone spetsbergensis Malmgren, 1865 Data Deficient
Eualus cranchii (Leach, 1817) Extremely Rare
Eualus gaimardii (H. Milne-Edwards, 1837) Data Deficient
Eualus occultus (Lebour, 1936) Extremely Rare
Eualus pusiolus (Krøyer, 1841) Data Deficient
Eubranchus exiguus (Alder & Hancock, 1848) Ballon-Fadenschnecke Data Deficient
Eubranchus farrani (Alder & Hancock, 1844) Orangegepunktete Ballon-Fadenschnecke Data Deficient
Eubranchus pallidus (Alder & Hancock, 1842) Blasige Ballon-Fadenschnecke Data Deficient
Eubranchus tricolor Forbes, 1838 Dreifarbige Ballon-Fadenschnecke Data Deficient
Eucheilota maculata Hartlaub, 1894 Data Deficient
Euchone papillosa (M. Sars, 1851) Highly Threatened
Eucratea loricata (L., 1758) Near Threatened
Eudendrium album Nutting, 1898 Data Deficient
Eudendrium capillare Alder, 1856 Data Deficient
Eudendrium rameum (Pallas, 1766) Data Deficient
Eudendrium ramosum (L., 1758) Data Deficient
Eudorella emarginata (Krøyer, 1846) Not Threatened
Eudorella truncatula (Bate, 1856) Not Threatened
Eudorellopsis deformis (Krøyer, 1846) Not Threatened
Eugyra arenosa (Alder & Hancock, 1848) Extinct or Lost
Eugyra glutinans (Moeller, 1842) Extinct or Lost
Eugyra pedunculata Traustedt, 1886  Extinct or Lost
Eulalia bilineata (Johnston, 1840) Threat of Unknown Extent
Eulalia expusilla Pleijel, 1987 Extremely Rare
Eulalia viridis (L., 1767) Data Deficient
Eulimella acicula (Philippi, 1836) Nadel-Pyramidenschnecke Extinct or Lost
Eumida arctica (Annenkova, 1946) Data Deficient
Eumida bahusiensis Bergström, 1914 Not Threatened
Eumida minuta (Ditlevsen, 1917) Data Deficient
Eumida punctifera (Grube, 1860) Not Threatened
Eumida sanguinea (Ørsted, 1843) Not Threatened
Eunereis elittoralis (Eliason, 1962) Data Deficient
Eunereis longissima (Johnston, 1840) Not Threatened
Eunoe nodosa (M. Sars, 1861) Data Deficient
Eupolymnia nebulosa (Montagu, 1818) Threat of Unknown Extent
Eupolymnia nesidensis (Delle Chiaje, 1828) Extinct or Lost
Eurydice affinis Hansen, 1905 Data Deficient
Eurydice pulchra Leach, 1815 Schöne Euridice Not Threatened
Euspira catena (da Costa, 1778) Halsband-Nabelschnecke Not Threatened
Euspira montagui (Forbes, 1838) Ungefleckte Nabelschnecke Not Threatened
Euspira pallida (Broderip & Sowerby, 1829) Helle Nördliche Mondschnecke Data Deficient
Euspira pulchella (Risso, 1826) Glänzende Nabelschnecke Not Threatened
Eusyllis blomstrandi Malmgren, 1867 Data Deficient
Exogone hebes (Webster & Benedict, 1884) Data Deficient
Exogone naidina Ørsted, 1845 Data Deficient
F
Fabricia sabella (Ehrenberg, 1836) Data Deficient
Fabricia stellaris (O.F. Müller, 1774) Data Deficient
Fabriciola baltica Friedrich, 1939 Threat of Unknown Extent
Facelina auriculata (O.F. Müller, 1776) Schlanke Fadenschnecke Highly Threatened
Facelina bostoniensis (Couthouy, 1838) Drummonds Fadenschnecke Not Threatened
Farrella repens (Farre, 1837) Data Deficient
Favorinus branchialis (Rathke, 1806) Favorinus-Fadenschnecke Data Deficient
Fenestrulina malusii (Audouin, 1826) Data Deficient
Ficopomatus enigmaticus (Fauvel, 1923) Not Evaluated
Filellum serpens (Hassall, 1848) Data Deficient
Fiona pinnata (Eschscholtz, 1831) Extinct or Lost
Flabelligera affinis M. Sars, 1829 Data Deficient
Flabellina pedata (Montagu, 1815) Rotviolette Fadenschnecke Extremely Rare
Flabellina pellucida (Alder & Hancock, 1843) Milchige Fadenschnecke Data Deficient
Flabellina verrucosa (M. Sars, 1829) Rotrückige Fadenschnecke Threatened
Flustra foliacea (L., 1758) Blättermoostierchen Not Threatened
Flustrellidra hispida (Fabricius, 1780) Extremely Rare
Fredericella sultana (Blumenbach, 1779) Data Deficient
Fridericia bulbosa (Rosa, 1887) Data Deficient
G
Galathea dispersa Bate, 1859 Data Deficient
Galathea intermedia Liljeborg, 1851 Near Threatened
Galathea nexa Embleton, 1834 Extinct or Lost
Galathea squamifera Leach, 1814 Extremely Rare
Galathea strigosa (L., 1761) Extremely Rare
Galathowenia oculata (Zachs, 1923) Not Threatened
Gammarella fucicola (Leach, 1814) Extremely Rare
Gammarellus angulosus (Rathke, 1843) Extremely Rare
Gammarellus homari (Fabricius, 1779) Not Threatened
Gammaropsis maculata (Johnston, 1828) Data Deficient
Gammaropsis melanops G.O. Sars, 1883 Not Threatened
Gammaropsis nitida (Stimpson, 1853) Not Threatened
Gammaropsis sophiae (Boeck, 1861) Data Deficient
Gammarus crinicornis Stock, 1966 Data Deficient
Gammarus duebeni Liljeborg, 1852 Threat of Unknown Extent
Gammarus finmarchicus Dahl, 1938 Data Deficient
Gammarus inaequicauda Stock, 1966 Threat of Unknown Extent
Gammarus locusta (L., 1758) Near Threatened
Gammarus oceanicus Segerstråle, 1947 Not Threatened
Gammarus pulex (L., 1758) Not Evaluated
Gammarus roeselii Gervais, 1835 Not Evaluated
Gammarus salinus Spooner, 1947 Not Threatened
Gammarus tigrinus Sexton, 1939 Not Evaluated
Gammarus zaddachi Sexton, 1912 Not Threatened
Gari fervensis (Gmelin, 1791) Sandmuschel Not Threatened
Garveia franciscana (Torrey, 1902) Not Evaluated
Garveia nutans Wright, 1859 Data Deficient
Gattyana amondseni (Malmgren, 1867) Not Threatened
Gattyana cirrhosa (Pallas, 1766) Schuppenwurm Not Threatened
Geitodoris planata (Alder & Hancock, 1846) Granulierte Warzenschnecke Data Deficient
Gibbula cineraria (L, 1758) Graue Kreiselschnecke Extremely Rare
Gibbula tumida (Montagu, 1803) Spitze Kreiselschnecke Data Deficient
Gitana sarsi Boeck, 1871 Extremely Rare
Glycera alba (O.F. Müller, 1776) Data Deficient
Glycera capitata Ørsted, 1843 Data Deficient
Glycera celtica O'Connor, 1987 Data Deficient
Glycera convoluta Keferstein, 1862 Data Deficient
Glycera gigantea Quatrefages, 1865 Data Deficient
Glycera lapidum Quatrefages, 1865 Data Deficient
Glycera oxycephala Ehlers, 1887 Data Deficient
Glycera rouxi Audouin & Milne-Edwards, 1833 Data Deficient
Glycera tesselata Grube, 1840 Data Deficient
Glycera unicornis Savigny in Lamarck, 1818 Data Deficient
Glycinde nordmanni (Malmgren, 1866) Not Threatened
Glyphohesione klatti Friedrich, 1950 Threat of Unknown Extent
Gnathia dentata (G. O. Sars, 1872) Extinct or Lost
Gnathia maxillaris (Montagu, 1804) Extinct or Lost
Gnathia vorax (Lucas, 1849) Data Deficient
Goneplax rhomboides (L., 1758) Extremely Rare
Goniada maculata Ørsted, 1843 Not Threatened
Goniada norvegica Ørsted, 1845 Data Deficient
Goniadella bobretzkii (Annenkova, 1929) Not Threatened
Goniodoris nodosa (Montagu, 1808) Weiß-Transparente Goniodoris Data Deficient
Gonothyraea loveni (Allman, 1859) Data Deficient
Goodallia triangularis (Montagu, 1803) Sanddorn-Astarte Threatened
Gouldia minima (Montagu, 1803) Dreieckige Venusmuschel Extremely Rare
Grania postclitellochaeta (Knöllner, 1935) Threat of Unknown Extent
Guancha blanca Miklucho-Maclay, 1868 Data Deficient
Gyptis propinqua Marion & Bobretzky, 1875 Extremely Rare
Gyptis rosea Marion, 1875 Data Deficient
H
Halcampa duodecimcirrata (Sars, 1851) Threatened with Extinction
Halecium halecinum (L., 1758) Extremely Rare
Halecium labrosum Alder, 1859 Data Deficient
Halecium tenellum Hincks, 1861 Extremely Rare
Halichondria bowerbanki Burton, 1930 Extremely Rare
Halichondria panicea (Pallas, 1766) Brotkrumenschwamm Threat of Unknown Extent
Haliclona cinerea (Grant, 1826) Data Deficient
Haliclona oculata (Pallas, 1766) Geweihschwamm Data Deficient
Haliclona rosea (Bowerbank, 1866) Extremely Rare
Haliclona urceolus (Rathke & Vahl, 1806) Extremely Rare
Haliclystus auricula (Rathke, 1806) Extremely Rare
Halisarca dujardini Johnston, 1842 Gallertschwamm Data Deficient
Halitholus yoldiaarcticae (Birula, 1897) Threatened
Halopteris catharina (Johnston, 1833) Data Deficient
Haminoea exigua Schaefer, 1992 Data Deficient
Hardametopa nasuta (Boeck, 1871) Not Threatened
Harmothoe antilopes McIntosh, 1876 Not Threatened
Harmothoe extenuata (Grube, 1840) Extremely Rare
Harmothoe imbricata (L., 1767) Data Deficient
Harmothoe impar (Johnston, 1839) Not Threatened
Harmothoe longisetis (Grube, 1863) Not Threatened
Harpinia antennaria Meinert, 1890 Not Threatened
Harpinia crenulata (Boeck, 1871) Data Deficient
Harpinia laevis G.O. Sars, 1891 Data Deficient
Harpinia pectinata G.O. Sars, 1891 Data Deficient
Hartlaubella gelatinosa (Pallas, 1766) Data Deficient
Haustorius arenarius (Slabber, 1769) Data Deficient
Hediste diversicolor (O.F. Müller, 1776) Seeringelwurm Not Threatened
Hemigrapsus sanguineus (de Haan, 1835) Not Evaluated
Hemigrapsus takanoi Asakura & Watanabe, 2005 Asiatische Strandkrabbe Not Evaluated
Hemilamprops roseus (Norman, 1863) Data Deficient
Hemilepton nitidum (Turton, 1822) Rundliche Koffermuschel Data Deficient
Henlea ventriculosa (d'Udekem, 1854) Data Deficient
Henricia oculata (Pennant, 1777) Blutstern Data Deficient
Hesionura elongata (Southern, 1914) Data Deficient
Heteranomia squamula (L., 1758) Kleine Sattelmuschel Extinct or Lost
Heterochaeta costata Claparède, 1863 Not Threatened
Heteromastus filiformis (Claparède, 1864) "Gummiwurm" Not Threatened
Hiatella arctica (L., 1767) Nördlicher Felsenbohrer Not Threatened
Hiatella rugosa (L., 1767) Gemeiner Felsenbohrer Extremely Rare
Hippolyte longirostris (Czerniavsky, 1868) Not Threatened
Hippolyte varians Leach, 1814 Data Deficient
Hippomedon denticulatus (Bate, 1857) Not Threatened
Homarus gammarus (L., 1758) (Europäischer) Hummer Highly Threatened
Hyala vitrea (Montagu, 1803) Durchscheinendes Spiralhorn Data Deficient
Hyalinella punctata (Hancock, 1850) Data Deficient
Hyas araneus (L., 1758) Not Threatened
Hyas coarctatus Leach, 1816 Nordische Meerspinne Data Deficient
Hydra oligactis Pallas, 1766 Brauner Polyp Not Evaluated
Hydra vulgaris Pallas, 1766 Not Evaluated
Hydractinia echinata (Fleming, 1828) Not Threatened
Hydractinia fucicola (Sars, 1857) Data Deficient
Hydrallmania falcata (L., 1758) Korallenmoos Extremely Rare
Hydrobia acuta (Draparnaud, 1805) Übersehene Wattschnecke Data Deficient
Hydroides norvegicus Gunnerus, 1768 Extremely Rare
Hypania invalida (Grube, 1860) Extremely Rare
Hyperia galba (Montagu, 1815) Not Threatened
Hyperoche medusarum (Krøyer, 1838) Extremely Rare
I
Idotea balthica (Pallas, 1772) Ostsee-Meerassel, Dreispitzige Meerassel Not Threatened
Idotea chelipes (Pallas, 1766) Krallenfüßige Meerassel Data Deficient
Idotea emarginata (Fabricius, 1793) Data Deficient
Idotea granulosa Rathke, 1843 Körnige Meerassel Data Deficient
Idotea linearis (L., 1767) Stabförmige Meerassel Not Threatened
Idotea metallica Bosc, 1802 Not Evaluated
Idotea neglecta G.O. Sars, 1897 Data Deficient
Idotea pelagica Leach, 1815 Data Deficient
Inachus phalangium (Fabricius, 1775) Data Deficient
Iphimedia minuta G.O. Sars, 1882 Data Deficient
Iphimedia obesa Rathke, 1843 Threatened
Iphinoe trispinosa (Goodsir, 1843) Not Threatened
Ischyrocerus anguipes Krøyer, 1838 Data Deficient
J
Jaera albifrons Leach, 1814 Not Threatened
Janira maculosa Leach, 1814 Extremely Rare
Janolus cristatus (delle Chiaje, 1841) Gestreifte Dickkolbenschnecke Extremely Rare
Janua pagenstecheri (Quatrefages, 1865) Extremely Rare
Jasmineira elegans Saint Joseph, 1894 Extremely Rare
Jassa falcata (Montagu, 1808) Not Threatened
Jassa herdmani (Walker, 1893) Extremely Rare
Jassa marmorata Holmes, 1905 Not Threatened
Jassa pusilla (Sars, 1894) Extremely Rare
Jorunna tomentosa (Cuvier, 1804) Schwamm-Jorunna Data Deficient
Jugaria granulata (L., 1767) Threat of Unknown Extent
K
Kefersteinia cirrata (Keferstein, 1862) Data Deficient
Kirchenpaueria pinnata (L., 1758) Extremely Rare
Kurtiella bidentata (Montagu, 1803) Kleine Linsenmuschel Not Threatened
L
Labidoplax buskii (McIntosh, 1866) Büschelige Seegurke Extremely Rare
Lacuna pallidula (da Costa, 1778) Flache Grübchenschnecke Data Deficient
Lacuna parva (da Costa, 1778) Kleine Grübchenschnecke Not Threatened
Lacuna vincta (Montagu, 1803) Gebänderte Grübchenschnecke Not Threatened
Laeospira corallinae (Silva & Knight-Jones, 1962) Extremely Rare
Laetmonice filicornis Kinberg, 1856 Data Deficient
Laevicardium crassum (Gmelin, 1791) Not Threatened
Lafoea dumosa (Fleming, 1820) Extremely Rare
Lafoea pygmaea Hincks, 1868 Data Deficient
Lafoeina tenuis Sars, 1874 Data Deficient
Lagis koreni Malmgren, 1866 Gerader Köcherwurm Not Threatened
Lamellaria perspicua (L., 1758) Zarte Blättchenschnecke Extremely Rare
Lamprops fasciatus G.O. Sars, 1863 Extremely Rare
Lanice conchilega (Pallas, 1766) Bäumchenröhrenwurm Not Threatened
Laomedea angulata Hincks, 1861 Data Deficient
Laomedea calceolifera (Hincks, 1871) Extremely Rare
Laomedea flexuosa Alder, 1857 Data Deficient
Laomedea neglecta Alder, 1856 Data Deficient
Laonice cirrata (M. Sars, 1851) Data Deficient
Laonome kroeyeri Malmgren, 1866 Data Deficient
Lekanesphaera hookeri (Leach, 1814) Threat of Unknown Extent
Lekanesphaera rugicauda (Leach, 1814) Threatened
Lembos websteri Bate, 1857 Not Threatened
Lepidepecreum longicornis (Bate & Westwood, 1862) Not Threatened
Lepidochitona cinerea (L., 1767) Rändel-Käferschnecke Threatened
Lepidonotus squamatus (L., 1758) Not Threatened
Leptasterias arctica (Murdoch, 1885) Extinct or Lost
Leptasterias muelleri (M. Sars, 1846) Müllers Seestern Extinct or Lost
Leptocheirus hirsutimanus (Bate, 1862) Extremely Rare
Leptocheirus pectinatus (Norman, 1869) Extremely Rare
Leptocheirus pilosus Zaddach, 1844 Not Threatened
Leptochiton asellus (Gmelin, 1791) Assel-Käferschnecke Threatened
Leptochiton cancellatus (G.B. Sowerby II, 1840) Kleine Käferschnecke Data Deficient
Lepton squamosum (Montagu, 1803) Durchsichtige Koffermuschel Not Threatened
Leptopentacta elongata (Düben & Koren, 1846) Threat of Unknown Extent
Leptosynapta bergensis (Östergren, 1905) Data Deficient
Leptosynapta inhaerens (O.F. Müller, 1776) Wurmseegurke Data Deficient
Leptosynapta minuta (Becher, 1906) Extremely Rare
Leucandra fistulosa (Johnston, 1842) Threatened
Leuckartiara octona (Fleming, 1823) Extremely Rare
Leucon nasica (Krøyer, 1841) Data Deficient
Leuconia johnstoni Carter, 1871 Extremely Rare
Leuconia nivea (Grant, 1826) Extremely Rare
Leucosolenia botryoides (Ellis & Solander, 1786) Extremely Rare
Leucosolenia complicata (Montagu, 1818) Extremely Rare
Leucosolenia fragilis (Haeckel, 1870) Data Deficient
Leucosolenia variabilis (Haeckel, 1870) Extremely Rare
Leucothoe incisa Robertson, 1892 Not Threatened
Leucothoe lilljeborgi Boeck, 1861 Data Deficient
Leucothoe procera Bate, 1857 Data Deficient
Leucothoe spinicarpa (Abildgaard, 1789) Extremely Rare
Levinsenia gracilis (Tauber, 1879) Not Threatened
Ligia oceanica (L., 1767) Klippenassel Not Threatened
Limacia clavigera (O.F. Müller, 1776) Limacia Not Threatened
Limapontia capitata (O.F. Müller, 1774) Breitköpfige Lanzettschnecke Threat of Unknown Extent
Limapontia depressa Alder & Hancock, 1862 Flache Lanzettschnecke Threatened
Limapontia senestra (Quatrefages, 1844) Finger-Lanzettschnecke Data Deficient
Limnodrilus claparedeanus Ratzel, 1868 Not Threatened
Limnodrilus hoffmeisteri Claparède, 1862 Not Threatened
Limnodrilus profundicola (Verrill, 1873) Data Deficient
Limnodrilus udekemianus Claparède, 1862 Not Threatened
Limnoria lignorum (Rathke, 1799) Bohrassel Data Deficient
Liocarcinus depurator (L., 1758) (Schwimmkrabbe) Not Threatened
Liocarcinus holsatus (Fabricius, 1798) Gemeine Schwimmkrabbe Not Threatened
Liocarcinus marmoreus (Leach, 1814) Marmorfarbige Schwimmkrabbe Threatened
Liocarcinus navigator (Herbst, 1794) Glattstirnige Schwimmkrabbe Extremely Rare
Liocarcinus pusillus (Leach, 1815) Kleine Schwimmkrabbe Threatened
Liocarcinus zariquieyi Gordon, 1968 Extremely Rare
Lipobranchus jeffreysii (McIntosh, 1869) Not Evaluated
Littorina compressa Jeffreys, 1865 Extinct or Lost
Littorina fabalis (Turton, 1825) Flache Strandschnecke Data Deficient
Littorina littorea (L., 1758) Gemeine Strandschnecke Not Threatened
Littorina obtusata (L., 1758) Stumpfe Strandschnecke Not Threatened
Littorina saxatilis (Olivi, 1792) Raue Strandschnecke Not Threatened
Lophopus crystallinus (Pallas, 1768) Data Deficient
Lovenella clausa (Lovén, 1836) Data Deficient
Lucinella divaricata (L., 1758) Weißliche Mondmuschel Not Threatened
Lucinoma borealis (L., 1758) Nördliche Mondmuschel Not Threatened
Lumbricillus arenarius (Michaelsen, 1889) Data Deficient
Lumbricillus lineatus (O.F. Müller, 1774) Data Deficient
Lumbriclymene cylindricaudata M. Sars in G.O. Sars, 1872 Data Deficient
Lumbriculus variegatus (O.F. Müller, 1774) Data Deficient
Lumbrineris aniara (Fauchald, 1974) Data Deficient
Lumbrineris fragilis (O.F. Müller, 1776) Not Threatened
Lumbrineris gracilis Ehlers, 1868 Not Threatened
Lumbrineris latreilli Audouin & Milne-Edwards, 1834 Extremely Rare
Lumbrineris magnidentata Winsnes, 1981 Data Deficient
Lumbrineris tetraura (Schmarda, 1861) Data Deficient
Lutraria lutraria (L., 1758) Ottermuschel Near Threatened
Lutraria magna (da Costa, 1778) Längliche Ottermuschel Extremely Rare
Lysilla loveni Malmgren, 1866 Extremely Rare
M
Macoma balthica (L., 1758) Baltische Tellmuschel Not Threatened
Macoma calcarea (Gmelin, 1791) Kalk-Plattmuschel Threatened with Extinction
Macropodia linaresi Forest & Zariquiey-Alvarez, 1964 Data Deficient
Macropodia parva van Noort & Adema, 1985 Data Deficient
Macropodia rostrata (L., 1761) Gespenstkrabbe Not Threatened
Mactra stultorum (L., 1758) Gemeine Trogmuschel Threat of Unknown Extent
Magelona alleni Wilson, 1958 Not Threatened
Magelona filiformis Wilson, 1959 Not Threatened
Magelona johnstoni Fiege, Licher & Mackie, 2000 Not Threatened
Magelona minuta Eliason, 1962 Data Deficient
Magelona mirabilis (Johnston, 1865) Data Deficient
Magelona wilsoni Glémarec, 1966 Data Deficient
Maja squinado (Herbst, 1788) Data Deficient
Malacoceros fuliginosus (Claparède, 1870) Extremely Rare
Malacoceros tetracerus (Schmarda, 1861) Data Deficient
Maldane sarsi Malmgren, 1865 Data Deficient
Malmgreniella andreapolis (McIntosh, 1874) Data Deficient
Malmgreniella arenicolae (Saint Joseph, 1888) Data Deficient
Malmgreniella castanea (McIntosh, 1876) Data Deficient
Malmgreniella glabra (Malmgren, 1866) Not Threatened
Malmgreniella ljungmani (Malmgren, 1867) Not Threatened
Malmgreniella lunulata (Delle Chiaje, 1830) Not Threatened
Malmgreniella marphysae (McIntosh, 1876) Data Deficient
Manayunkia aestuarina (Bourne, 1883) Threat of Unknown Extent
Manzonia crassa (Kahnmacher, 1798) Data Deficient
Marenzelleria neglecta Sikorski & Bick, 2004 Not Evaluated
Marenzelleria viridis (Verrill, 1873) Not Evaluated
Marenzelleria wireni Augener, 1913 Not Evaluated
Marionina spicula (Leuckart, 1847) Not Threatened
Marshallora adversa (Montagu, 1803) Verkehrtschnecke, Linksnadel Data Deficient
Medicorophium affine (Bruzelius, 1859) Data Deficient
Mediomastus fragilis Rasmussen, 1973 Data Deficient
Megaluropus agilis Hoeck, 1889 Near Threatened
Megamphopus cornutus Norman, 1869 Not Threatened
Melanella alba (da Costa, 1778) Weiße Pfriemschnecke Data Deficient
Melanella conoidea (Kurtz & Stimpson, 1851) Data Deficient
Melarhaphe neritoides (L., 1758) Zwerg-Strandschnecke Extinct or Lost
Melicertum octocostatum (Sars, 1835) Data Deficient
Melinna cristata (M. Sars, 1851) Data Deficient
Melita dentata (Krøyer, 1842) Data Deficient
Melita hergensis Reid, 1939 Data Deficient
Melita palmata (Montagu, 1804) Near Threatened
Melphidippella macra (Norman, 1869) Data Deficient
Membranipora membranacea (L., 1767) Seerinde Near Threatened
Membraniporella nitida (Johnston, 1838) Data Deficient
Metopa alderi (Bate, 1857) Near Threatened
Metopa borealis Sars, 1882 Near Threatened
Metopa pusilla Sars, 1892 Not Threatened
Metridium dianthus (Ellis, 1768) Data Deficient
Metridium senile (L., 1761) Seenelke Threat of Unknown Extent
Microdeutopus anomalus (Rathke, 1843) Extremely Rare
Microdeutopus gryllotalpa Costa, 1853 Not Threatened
Microhedyle glandulifera (Kowalewsky, 1901) Milchigweiße Sandlücken-Nacktschnecke Extinct or Lost
Microjassa cumbrensis (Stebbing & Robertson, 1891) Extremely Rare
Microphthalmus aberrans (Webster & Benedict, 1887) Not Threatened
Microphthalmus fragilis Bobretzky, 1870 Data Deficient
Microphthalmus listensis Westheide, 1967 Data Deficient
Microphthalmus sczelkowii Metschnikow, 1865 Extremely Rare
Microphthalmus similis Bobretzky, 1870 Data Deficient
Microporella ciliata (Pallas, 1766) Extremely Rare
Microprotopus longimanus Chevreux, 1887 Not Threatened
Microprotopus maculatus Norman, 1867 Not Threatened
Microspio mecznikowianus (Claparède, 1869) Data Deficient
Mimachlamys varia (L., 1758) Bunte Kammmuschel Not Threatened
Modiolarca subpicta (Cantraine, 1835) Marmorierte Bohnenmuschel Threat of Unknown Extent
Modiolula phaseolina (Philippi, 1844) Extinct or Lost
Modiolus modiolus (L., 1758) Pferdemuschel, Große Miesmuschel Highly Threatened
Molgula citrina Alder & Hancock, 1848 Not Threatened
Molgula complanata Alder & Hancock, 1870 Extremely Rare
Molgula manhattensis (De Kay, 1843) Data Deficient
Molgula oculata Forbes, 1848 Data Deficient
Molgula provisionalis van Name, 1945 Data Deficient
Molgula tubifera (Oersted, 1844) Extremely Rare
Monocorophium ascherusicum (Costa, 1857) Data Deficient
Monocorophium insidiosum (Crawford, 1937) Not Threatened
Monocorophium sextonae (Crawford, 1937) Not Evaluated
Monoculodes carinatus (Bate, 1857) Data Deficient
Monophorus perversus (L., 1758) Verkehrtschnecke Threat of Unknown Extent
Monoporeia affinis Lindström, 1855 Threatened
Monopseudocuma gilsoni (Gilson, 1906) Data Deficient
Monopylephorus irroratus (Verrill, 1873) Near Threatened
Monopylephorus rubroniveus Levinsen, 1884 Threat of Unknown Extent
Montacuta substriata (Montagu, 1808) Konkave Linsenmuschel Not Threatened
Musculus discors (L., 1767) Grüne Bohnenmuschel Threat of Unknown Extent
Musculus niger J.E. Gray, 1824 Schwarze Bohnenmuschel Threat of Unknown Extent
Mya arenaria L., 1758 Sandklaffmuschel Not Threatened
Mya truncata L., 1758 Abgestutzte Klaffmuschel Highly Threatened
Mycale macilenta (Bowerbank, 1866) Extremely Rare
Myosotella myosotis (Draparnaud, 1801) Mäuseöhrchen Threatened with Extinction
Myrianida brachycephala (Marenzeller, 1874) Extremely Rare
Myrianida edwardsi (Saint Joseph, 1887) Data Deficient
Myrianida inermis (Saint Joseph, 1887)  Extremely Rare
Myrianida prolifera (O.F. Müller, 1788) Not Threatened
Myrianida quindecimdentata (Langerhans, 1884) Data Deficient
Myriochele heeri Malmgren, 1867 Extremely Rare
Mysia undata (Pennant, 1777) Mysia Not Threatened
Mysta picta (Quatrefages, 1865) Extremely Rare
Mystides southerni (Banse, 1954) Data Deficient
Mytilopsis leucophaeata (Conrad, 1831) Brackwasser-Dreiecksmuschel Not Evaluated
Mytilus edulis L., 1758 Miesmuschel Not Threatened
Mytilus trossulus Gould, 1850 Pazifische Miesmuschel Data Deficient
Myxilla incrustans (Johnston, 1842) Extremely Rare
N
Nais barbata O.F. Müller, 1773 Data Deficient
Nais elinguis O.F. Müller, 1773 Not Threatened
Nais variabilis Piguet, 1906 Data Deficient
Nannonyx goesi (Boeck, 1871) Data Deficient
Nassarius incrassatus (Ström, 1768) Dicklippige Netzreusenschnecke Threat of Unknown Extent
Nassarius reticulatus (L., 1758) Gemeine Netzreusenschnecke Threat of Unknown Extent
Natatolana borealis (Lilljeborg, 1851) Data Deficient
Neanthes fucata (Savigny in Lamarck, 1818) Not Threatened
Necora puber (L., 1767) Behaarte Schwimmkrabbe Not Threatened
Nemertesia ramosa (Lamarck, 1816) Data Deficient
Nemopsis bachei (L. Agassiz, 1849) Not Evaluated
Neoamphitrite figulus (Dalyell, 1853) Not Threatened
Neoamphitrite groenlandica (Malmgren, 1866) Extremely Rare
Neoleanira tetragona (Ørsted, 1845) Extremely Rare
Nephrops norvegicus (L., 1758) Kaisergranat, Norwegischer Hummer Threat of Unknown Extent
Nephtys assimilis Ørsted, 1843 Not Threatened
Nephtys caeca (Fabricius, 1780) Not Threatened
Nephtys ciliata (O.F. Müller, 1776) Not Threatened
Nephtys cirrosa (Ehlers, 1868) Not Threatened
Nephtys hombergii Savigny in Lamarck, 1818 Not Threatened
Nephtys incisa Malmgren, 1865 Not Threatened
Nephtys kersivalensis McIntosh, 1908 Data Deficient
Nephtys longosetosa Ørsted, 1842 Not Threatened
Nephtys paradoxa Malm, 1874 Extremely Rare
Nephtys pente Rainer, 1984 Data Deficient
Neptunea antiqua (L., 1758) Spindelschnecke Threat of Unknown Extent
Nereimyra punctata (O.F. Müller, 1788) Threat of Unknown Extent
Nereis pelagica L., 1758 Not Threatened
Nereis zonata Malmgren, 1867 Data Deficient
Nerilla antennata O. Schmidt, 1848 Threat of Unknown Extent
Nicolea venustula (Montagu, 1818) Threat of Unknown Extent
Nicolea zostericola Ørsted, 1844 Not Threatened
Nicomache lumbricalis (Fabricius, 1780) Not Threatened
Nicomache minor Arwidsson, 1906 Data Deficient
Nicomache personata Johnson, 1901 Data Deficient
Nothria conchylega (M. Sars, 1835) Data Deficient
Notomastus latericeus M. Sars, 1851 Not Threatened
Notophyllum foliosum (Sars, 1835) Data Deficient
Nototropis falcatus (Metzger, 1871) Not Threatened
Nucella lapillus (L., 1758) Nördliche Purpurschnecke Highly Threatened
Nucula nitidosa Winckworth, 1930 Glänzende Nussmuschel Not Threatened
Nucula nucleus (L., 1758) Große Nussmusschel Threatened with Extinction
Nuculana minuta (O.F. Müller, 1776) Kleine Schnabelmuschel Not Threatened
Nuculana pernula O.F. Müller, 1779 Große Schnabelmuschel Not Threatened
Nymphon brevirostre Hodge, 1863 Zierliche Asselspinne Not Threatened
Nymphon gracile Leach, 1814 Not Threatened
Nymphon grossipes (Fabricius, 1780) Data Deficient
O
Obelia bidentata Clarke, 1875 Data Deficient
Obelia dichotoma (L., 1758)  Data Deficient
Obelia geniculata (L., 1758) Data Deficient
Obelia longissima (Pallas, 1766) Data Deficient
Octopus vulgaris Cuvier, 1797 Gemeiner Krake Extremely Rare
Odostomia eulimoides Hanley, 1844 Blasse Pyramidenschnecke Extremely Rare
Odostomia scalaris MacGillivray, 1843 Gestufte Pyramidenschnecke Not Threatened
Odostomia unidentata (Montagu, 1803) Einzahn-Pyramidenschnecke Extremely Rare
Omalogyra atomus (Philippi, 1841) Flache Zwergtellerschnecke Data Deficient
Onchidoris aspera (Alder & Hancock, 1842) Raue Sternschnecke Extinct or Lost
Onchidoris bilamellata (Linnaeus, 1767) Braungefleckte Sternschnecke Not Threatened
Onchidoris depressa (Alder & Hancock, 1842) Not Threatened
Onchidoris fusca (O.F. Müller, 1776) Extinct or Lost
Onchidoris muricata (O.F. Müller, 1776) Blassgraue Sternschnecke Not Threatened
Onchidoris pusilla (Alder & Hancock, 1845) Not Threatened
Oncousoecia dilatans (Johnston, 1847) Data Deficient
Ondina divisa (J. Adams, 1797) Geteilte Pyramidenschnecke, Undine Not Threatened
Onoba aculeus (Gould, 1841) Spitze Kleinschnecke Extremely Rare
Onoba semicostata (Montagu, 1803) Halbgerippte Kleinschnecke Not Threatened
Opercularella lacerata (Johnston, 1847) Data Deficient
Opercularella pumila Clark, 1875 Data Deficient
Ophelia limacina (Rathke, 1843) Not Threatened
Ophelia rathkei McIntosh, 1908 Near Threatened
Ophelina acuminata Ørsted, 1843 Not Threatened
Ophelina minima Hartmann-Schröder, 1974 Data Deficient
Ophelina modesta Støp-Bowitz, 1958 Data Deficient
Ophidonais serpentina (O.F. Müller, 1773) Data Deficient
Ophiocten affinis (Lütken, 1858) Data Deficient
Ophiodromus flexuosus (Delle Chiaje, 1827) Not Threatened
Ophiopholis aculeata (L., 1767) Höhlen-Schlangenstern Data Deficient
Ophiothrix fragilis (Abildgaard in O.F. Müller, 1789) Zerbrechlicher Schlangenstern Near Threatened
Ophiura albida Forbes, 1839 Heller, Kleiner Schlangenstern Not Threatened
Ophiura ophiura (L., 1758) Schuppiger, Großer Schlangenstern Not Threatened
Ophiura sarsii Lütken, 1855 Data Deficient
Ophryotrocha gracilis Huth, 1933 Data Deficient
Ophryotrocha puerilis siberti (McIntosh, 1885) Data Deficient
Orbinia armandi (McIntosh, 1910) Data Deficient
Orbinia cuvierii (Audouin & Milne-Edwards, 1833) Extinct or Lost
Orbinia latreilli (Audouin & Milne-Edwards, 1833) Extremely Rare
Orbinia sertulata (Savigny, 1820) Data Deficient
Orchestia cavimana Heller, 1865 Data Deficient
Orchestia gammarellus (Pallas, 1766) Küstenhüpfer Near Threatened
Orchomene humilis (Costa, 1853) Data Deficient
Orchomenella minuta (Krøyer, 1846) Data Deficient
Orchomenella nana (Krøyer, 1846) Not Threatened
Orchomenella pinguis (Boeck, 1961) Extinct or Lost
Oscarella lobularis (Schmidt, 1862) Extremely Rare
Ostrea edulis L., 1758 Europäische, Gemeine Auster Threatened with Extinction
Othomaera othonis (Milne-Edwards, 1830) Data Deficient
Owenia fusiformis Delle Chiaje, 1841 Not Threatened
P
Pachycordyle navis (Millard, 1959) Data Deficient
Pagurus bernhardus (L., 1758) Einsiedlerkrebs Not Threatened
Pagurus pubescens Krøyer, 1838 Highly Threatened
Palaemon adspersus Rathke, 1837 Near Threatened
Palaemon elegans Rathke, 1837 Not Threatened
Palaemon longirostris H. Milne-Edwards, 1837 Data Deficient
Palaemon macrodactylus Rathbun, 1902 Not Evaluated
Palaemonetes varians (Leach, 1814) Near Threatened
Palio dubia (M. Sars, 1829) Gefleckte Hörnchenschnecke Data Deficient
Palio nothus (Johnston, 1838) Extremely Rare
Palliolum tigerinum (O.F. Müller, 1776) Extinct or Lost
Paludicella articulata (Ehrenberg, 1831) Data Deficient
Pandalina brevirostris (Rathke, 1843) Threat of Unknown Extent
Pandalus borealis Krøyer, 1838 Tiefseegarnele Not Threatened
Pandalus montagui Leach, 1814 Not Threatened
Paracentrotus lividus (Lamarck, 1816) Stein-Seeigel Threat of Unknown Extent
Paradoneis eliasoni Mackie, 1991 Not Threatened
Paradoneis lyra (Southern, 1914) Not Threatened
Paraiptasia radiata (Stimpson, 1856) Data Deficient
Parajassa pelagica (Leach, 1814) Extremely Rare
Paramphilochoides odontonyx (Boeck, 1871) Not Threatened
Paramphinome jeffreysii (McIntosh, 1868) Not Threatened
Paranais frici Hrabe, 1941 Threat of Unknown Extent
Paranais litoralis (O.F. Müller, 1784) Threat of Unknown Extent
Paraonis fulgens (Levinsen, 1884) Not Threatened
Parapleustes assimilis (Sars, 1882) Not Threatened
Parapleustes bicuspis (Krøyer, 1838) Extremely Rare
Pariambus typicus (Krøyer, 1844) Not Threatened
Parvicardium exiguum (Gmelin, 1791) Dreieckige Herzmuschel Threatened with Extinction
Parvicardium hauniense (Høpner Petersen & Russell, 1971) Kopenhagener Herzmuschel Extremely Rare
Parvicardium pinnulatum (Conrad, 1831) Ovale Herzmuschel Data Deficient
Parvicardium scabrum (Philippi, 1844) Weißliche Herzmuschel Data Deficient
Parvipalpus capillaceus (Chevreux, 1888)  Data Deficient
Patella pellucida L., 1758 Durchscheinende Napfschnecke Not Threatened
Patella vulgata L., 1758 Gemeine Napfschnecke Data Deficient
Peachia cylindrica (Reid, 1848) Data Deficient
Pecten maximus L., 1758 Große Pilgermuschel Data Deficient
Pectinaria belgica (Pallas, 1766) Not Threatened
Pelagobia longicirrata Gravier, 1911 Data Deficient
Peloscolex ferox (Eisen, 1879) Data Deficient
Peringia ulvae (Pennant, 1777) Glatte Wattschnecke Not Threatened
Perioculodes longimanus (Bate & Westwood, 1868) Not Threatened
Pestarella tyrrhena (Petagna, 1792) Data Deficient
Petricolaria pholadiformis (Lamarck, 1818) Amerikanische Bohrmuschel Not Evaluated
Phaxas pellucidus (Pennant, 1777) Durchscheinende Scheidenmuschel Not Threatened
Pherusa flabellata (M. Sars in G.O. Sars, 1872) Not Threatened
Pherusa plumosa (O.F. Müller, 1776) Data Deficient
Phialella quadrata (Forbes, 1848) Data Deficient
Philine aperta (L., 1767) Offene Seemandel Not Threatened
Philine catena (Montagu, 1803) Data Deficient
Philine punctata (J. Adams, 1800) Kleine Seemandel Not Threatened
Philine scabra (O.F. Müller, 1776) Raue Seemandel Extremely Rare
Philocheras bispinosus (Hailstone, 1835) Data Deficient
Philocheras trispinosus (Hailstone in Hailstone & Westwood, 1835) Data Deficient
Pholas dactylus L., 1758 Dattelmuschel Extremely Rare
Pholoe assimilis Ørstedt, 1845 Data Deficient
Pholoe baltica Ørstedt, 1843 Not Threatened
Pholoe inornata Johnston, 1839 Extremely Rare
Photis longicaudata (Bate & Westwood, 1862) Near Threatened
Photis reinhardi Krøyer,1842 Not Threatened
Phoxichilidium femoratum (Rathke, 1799) Extremely Rare
Phoxocephalus holbolli (Krøyer, 1842) Data Deficient
Phtisica marina Slabber, 1769 Not Threatened
Phyllodoce citrina Malmgren, 1865 Threat of Unknown Extent
Phyllodoce groenlandica Ørsted, 1842 Not Threatened
Phyllodoce laminosa Savigny in Lamarck, 1818 Data Deficient
Phyllodoce lineata (Claparède, 1870) Data Deficient
Phyllodoce longipes Kinberg, 1866 Data Deficient
Phyllodoce maculata (L., 1767) Not Threatened
Phyllodoce mucosa Ørsted, 1843 Not Threatened
Phyllodoce rosea (McIntosh, 1877) Not Threatened
Pilumnus hirtellus (L., 1761) Threatened
Pinnotheres pisum (L., 1767) Muschelwächter Data Deficient
Pirimela denticulata (Montagu, 1808) Extinct or Lost
Pisidia longicornis (L., 1767) Not Threatened
Pisione remota (Southern, 1914) Not Threatened
Plagioecia patina (Lamarck, 1816) Threat of Unknown Extent
Plagioecia sarniensis (Norman, 1864) Data Deficient
Platorchestia platensis (Krøyer, 1845) Data Deficient
Platynereis dumerilii (Audouin & Milne-Edwards, 1833) Threat of Unknown Extent
Pleraplysilla minchini Topsent, 1905 Extremely Rare
Pleurocrypta longibranchiata (Bate & Westwood, 1868) Data Deficient
Pleurogonium rubicundum (G.O. Sars, 1864) Extremely Rare
Plumatella emarginata Allman, 1844 Data Deficient
Plumatella fruticosa Allman, 1844 Data Deficient
Plumatella fungosa (Pallas, 1768) Data Deficient
Plumatella repens (L., 1758) Data Deficient
Plumularia setacea (L., 1758) Data Deficient
Podarkeopsis helgolandica (Hilbig & Dittmer, 1979) Not Threatened
Pododesmus patelliformis (L., 1761) Große Sattelmuschel Not Threatened
Poecilochaetus serpens Allen, 1904 Not Threatened
Polycera quadrilineata (O.F. Müller, 1776) Gestreifte Hörnchenschnecke Not Threatened
Polycirrus aurantiacus Grube, 1860 Extremely Rare
Polycirrus medusa Grube, 1850 Data Deficient
Polyclinum aurantium Milne-Edwards 1841 Extremely Rare
Polydora ciliata (Johnston, 1838) Not Threatened
Polydora cornuta Bosc, 1802 Not Threatened
Polygordius appendiculatus Fraipont, 1887 Near Threatened
Polygordius lacteus Schneider, 1868 Near Threatened
Polymastia boletiformis (Lamarck, 1815) Extremely Rare
Polymastia penicillus (Montagu, 1818) Extremely Rare
Polyphysia crassa (Ørsted, 1843) Threatened
Pontaster tenuispinus (Düben & Koren, 1846) Data Deficient
Pontocrates altamarinus (Bate & Westwood, 1862) Not Threatened
Pontocrates arenarius (Bate, 1858) Not Threatened
Pontogammarus robustoides (G.O. Sars, 1894) Not Evaluated
Pontophilus spinosus (Leach, 1815) Extremely Rare
Pontoporeia femorata Krøyer, 1842 Near Threatened
Porcellana platycheles (Pennant, 1777) Data Deficient
Portumnus latipes (Pennant, 1777) Schwimmkrabbe Not Threatened
Potamothrix bavaricus (Oschman, 1913) Threat of Unknown Extent
Potamothrix hammoniensis (Michaelsen, 1901) Data Deficient
Potamothrix heuscheri (Bretscher, 1900) Threat of Unknown Extent
Potamothrix moldaviensis Vejdovsky & Mrazek, 1902 Not Threatened
Potamothrix vejdovskyi (Hrabe, 1941) Threat of Unknown Extent
Praxillella praetermissa (Malmgren, 1865) Data Deficient
Praxillura longissima Arwidsson, 1906 Data Deficient
Prionospio banyulensis Laubier, 1966 Data Deficient
Prionospio cirrifera Wirén, 1883 Extremely Rare
Prionospio malmgreni Claparède, 1869 Data Deficient
Prionospio multibranchiata E. Berkeley, 1927 Data Deficient
Prionospio steenstrupi Malmgren, 1867 Not Threatened
Proceraea cornuta (Agassiz, 1862) Not Threatened
Proceraea prismatica (O.F. Müller, 1776) Not Threatened
Processa canaliculata Leach, 1815 Near Threatened
Processa modica Williamson, 1979 Data Deficient
Processa nouveli holthuisi Al-Adhub & Williamson, 1975 Not Threatened
Processa parva Holthuis, 1951 Data Deficient
Proclymene muelleri (Sars, 1856) Not Evaluated
Propappus volki Michaelsen, 1916 Data Deficient
Propebela assimilis (G.O. Sars, 1878) Extinct or Lost
Propebela turricula (Montagu, 1803) Treppengiebelchen Not Threatened
Prosphaerosyllis tetralix (Eliason, 1920) Data Deficient
Protodorvillea kefersteini (McIntosh, 1869) Not Threatened
Protodriloides chaetifer (Remane, 1926) Data Deficient
Protodrilus purpureus (Schneider, 1868) Extinct or Lost
Protohydra leuckarti Greeff, 1870 Data Deficient
Protomedeia fasciata Krøyer, 1842 Extremely Rare
Protosuberites epiphytum (Lamarck, 1815) Extremely Rare
Psammechinus miliaris (P.L.S. Müller, 1771) Strandseeigel Not Threatened
Psammodrilus balanoglossoides Swedmark, 1952 Extremely Rare
Psammoryctides albicola (Michaelsen, 1901) Data Deficient
Psammoryctides barbatus (Grube, 1891) Data Deficient
Pseudione borealis Caspers, 1939 Data Deficient
Pseudione callianassae Kossmann, 1881 Data Deficient
Pseudocuma longicorne (Bate, 1858) Data Deficient
Pseudocuma simile G.O. Sars, 1900 Not Threatened
Pseudomystides limbata (Saint Joseph, 1888) Extremely Rare
Pseudopolydora antennata (Claparède, 1869) Data Deficient
Pseudopolydora pulchra (Carazzi, 1895) Not Threatened
Pseudopotamilla reniformis (O.F. Müller, 1771) Data Deficient
Pseudoprotella phasma (Montagu, 1804) Data Deficient
Pterolysippe vanelli (Fauvel, 1936) sensu Eliason, 1955 Data Deficient
Puncturella noachina (L., 1771) Nordische Lochschnecke Not Threatened
Pusillina inconspicua (Alder, 1844) Gefleckte Zwergschnecke Not Threatened
Pycnogonum litorale (Strom, 1762) Knotige Asselspinne Data Deficient
Pygospio elegans Claparède, 1863 Not Threatened
R
Raphitoma aequalis Jeffreys, 1867 Extinct or Lost
Raphitoma leufroyi (Michaud, 1827) Data Deficient
Raphitoma linearis (Montagu, 1803) Zierliche Nadelschnecke Extremely Rare
Rathkea octopunctata (M. Sars, 1835) Data Deficient
Retusa obtusa (Montagu, 1803) Zugespitzte Tönnchenschnecke Not Threatened
Retusa truncatula (Bruguière, 1792) Abgestutzte Tönnchenschnecke Not Threatened
Rhabdomolgus ruber Keferstein, 1862 Data Deficient
Rhithropanopeus harrisii (Gould, 1841) Not Evaluated
Rhizocaulus verticillatus (L., 1758) Threat of Unknown Extent
Rhizodrilus pilosus (Goodrich, 1892) Data Deficient
Rhizorhagium roseum M. Sars, 1874 Data Deficient
Rhodine gracilior Tauber, 1879 Data Deficient
Rhodine loveni Malmgren, 1865 Data Deficient
Rissoa membranacea (J. Adams, 1800) Pergament-Rissoe Near Threatened
Rissoa parva (da Costa, 1778) Komma-Zwergschnecke Near Threatened
Rissoa variabilis (von Mühlfeldt, 1824) Extinct or Lost
Rissoa violacea Desmarest, 1814 Violette Rissoe Data Deficient
Roxania utriculus (Brocchi, 1814) Not Threatened
S
Sabella spallanzani (Gmelin, 1791) Schlickröhrenwurm Extinct or Lost
Sabellaria alveolata (L., 1767) Extremely Rare
Sabellaria spinulosa Leuckart, 1849 Sandkoralle, Pümpwurm Highly Threatened
Saduria entomon (L., 1758) Riesenassel Threat of Unknown Extent
Sagartia elegans (Dalyell, 1848) Data Deficient
Sagartia troglodytes (Price in Johnston, 1847) Data Deficient
Sagartiogeton laceratus (Dalyell, 1848) Extremely Rare
Sagartiogeton undatus (O.F. Müller, 1778) Schlammrose, Schlangenhaar-Seerose Threatened
Sagartiogeton viduatus (O.F. Müller, 1776) Data Deficient
Sarsia lovenii (M. Sars, 1846) Data Deficient
Sarsia tubulosa (M. Sars, 1835) Near Threatened
Saxicavella jeffreysi Winckworth, 1930 Fragiler Felsenbohrer Not Threatened
Scalibregma inflatum Rathke, 1843 Threat of Unknown Extent
Schizomavella linearis (Hassall, 1841) Data Deficient
Schizoporella errata (Waters, 1878) Extremely Rare
Schizoporella unicornis (Johnston in Wood, 1844) Extremely Rare
Scolanthus callimorphus Gosse, 1853 Data Deficient
Scolelepis bonnieri (Mesnil, 1896) Not Threatened
Scolelepis foliosa (Audouin & Milne-Edwards, 1833) Not Threatened
Scolelepis korsuni Sikorski, 1994 Data Deficient
Scolelepis squamata (O.F. Müller, 1806) Not Threatened
Scolelepis tridentata (Southern, 1914) Data Deficient
Scoloplos armiger (O.F. Müller, 1776) Not Threatened
Scopelocheirus hopei (Costa, 1851) Not Threatened
Scrobicularia plana (da Costa, 1778) Pfeffermuschel Threatened with Extinction
Scruparia chelata (L., 1758) Extremely Rare
Scrupocellaria reptans (L., 1758) Extremely Rare
Scrupocellaria scrupea Busk, 1852 Extinct or Lost
Scrupocellaria scruposa (L., 1758) Extremely Rare
Securiflustra securifrons (Pallas, 1766) Extremely Rare
Semibalanus balanoides (L., 1758) Gemeine Seepocke Not Threatened
Sepia officinalis L., 1758 Gemeiner Tintenfisch Not Evaluated
Sepiola atlantica d'Orbigny, 1839 Atlantische Sepiole Data Deficient
Sertularella mediterranea Hartlaub, 1901 Data Deficient
Sertularella polyzonias (L., 1758) Extremely Rare
Sertularella rugosa (L., 1758) Extremely Rare
Sertularia cupressina L., 1758 Zypressenmoos, Seemoos Threat of Unknown Extent
Sertularia tenera G.O. Sars, 1874 Data Deficient
Sigalion mathildae Audouin & Milne-Edwards, 1830 Threatened
Sigalion squamosus Delle Chiaje, 1830 Data Deficient
Siphonoecetes kroyeranus Bate, 1856 Not Threatened
Siphonoecetes striatus Myers & McGrath, 1979 Data Deficient
Skeneopsis planorbis (O. Fabricius, 1780) Gemeine Zwergtellerschnecke Highly Threatened
Smittina landsborovii (Johnston, 1847) Extremely Rare
Solen marginatus Pulteney, 1799 Extinct or Lost
Spatangus purpureus O.F. Müller, 1776 Violetter Herzseeigel Threatened with Extinction
Sphaerodoropsis baltica (Reimers, 1933) Data Deficient
Sphaerodoropsis minuta (Webster & Benedict, 1887) Not Threatened
Sphaerodorum gracilis (Rathke, 1843) Not Threatened
Sphaerosyllis hystrix Claparède, 1863 Extremely Rare
Spio armata (Thulin, 1957) Data Deficient
Spio decoratus Bobretzky, 1870 Data Deficient
Spio filicornis (O.F. Müller, 1776) Not Threatened
Spio goniocephala Thulin, 1957 Not Threatened
Spio martinensis Mesnil, 1896 Not Threatened
Spiophanes bombyx (Claparède, 1870) Not Threatened
Spiophanes kroyeri Grube, 1860 Not Threatened
Spirobranchus lamarcki (Quatrefages, 1866) Extremely Rare
Spirobranchus triqueter (L., 1758) Dreikantwurm Not Threatened
Spirontocaris spinus (Sowerby, 1805) Extinct or Lost
Spirorbis spirorbis (L., 1758) Posthörnchenwurm Threat of Unknown Extent
Spirorbis tridentatus Levinsen, 1883 Threat of Unknown Extent
Spisula elliptica (Brown, 1827) Elliptische Trogmuschel Highly Threatened
Spisula solida (L., 1758) Dickschalige Trogmuschel Threat of Unknown Extent
Spisula subtruncata (da Costa, 1778) Gedrungene Trogmuschel Threat of Unknown Extent
Spondylus sinensis Schreibers, 1793 Extinct or Lost
Spongilla lacustris (L., 1759) (Süßwasserschwamm) Not Evaluated
Stauridiosarsia spongicola (Anger, 1972) Data Deficient
Stenothoe marina (Bate, 1856) Not Threatened
Stenothoe monoculoides (Montagu, 1815) Extremely Rare
Stenula rubrovittata Sars, 1883 Data Deficient
Sthenelais boa (Johnston, 1833) Threat of Unknown Extent
Sthenelais limicola (Ehlers, 1864) Not Threatened
Streblospio shrubsolii (Buchanan, 1890) Near Threatened
Streptosyllis arenae Webster & Benedict, 1884 Data Deficient
Streptosyllis websteri Southern, 1914 Data Deficient
Striarca lactea (L., 1758) Not Threatened
Strongylocentrotus droebachiensis (O.F. Müller, 1776) Rundstacheliger Seeigel Extremely Rare
Styela canopus (Savigny, 1816) Extremely Rare
Styela clava Herdman, 1881 Not Evaluated
Styela coriacea (Alder & Hancock, 1848) Threat of Unknown Extent
Stylaria lacustris (L., 1767) Data Deficient
Stylodrilus heringianus Claparède, 1862 Data Deficient
Suberites ficus (Johnston, 1842) Korkschwamm Extremely Rare
Sycon ciliatum (Fabricius, 1780) Data Deficient
Syllides articulocirratus Gillandt, 1979 Extremely Rare
Syllides benedicti Banse, 1971 Data Deficient
Syllides longocirratus (Ørsted, 1845) Data Deficient
Syllidia armata Quatrefages, 1866 Data Deficient
Syllis armillaris (O.F. Müller, 1776) Data Deficient
Syllis gracilis Grube, 1840 Extremely Rare
Syllis hyalina Grube, 1863  Extremely Rare
Syllis prolifera Krohn, 1852 Extinct or Lost
Synchelidium haplocheles (Grube, 1864) Near Threatened
Synchelidium maculatum Stebbing, 1906 Data Deficient
Synchelidium tenuimanum Norman, 1895 Data Deficient
Synoicum pulmonaria (Ellis & Solander, 1786) Extinct or Lost
T
Talitrus saltator (Montagu, 1808) Strandfloh, Sandhüpfer Highly Threatened
Talochlamys pusio (L., 1758) Extinct or Lost
Tanganella muelleri Kraepelin, 1887 Data Deficient
Tapes rhomboides (Pennant, 1777) Not Threatened
Tectura virginea (O.F. Müller, 1776) Weiße Schildkrötenschnecke Near Threatened
Tegella unicornis (Fleming, 1828) Not Threatened
Tellimya ferruginosa (Montagu, 1808) Längliche Linsenmuschel Not Threatened
Tellina donacina L., 1758 Gestreckte Tellmuschel Not Threatened
Tellina fabula Gmelin, 1791 Gerippte Tellmuschel Not Threatened
Tellina pygmaea Lovén, 1846 Zwerg-Tellmuschel Data Deficient
Tellina tenuis da Costa, 1778 Platte Tellmuschel Near Threatened
Tenellia adspersa (Nordmann, 1845) Lagunen-Nacktschnecke Threat of Unknown Extent
Terebellides stroemi M. Sars, 1835 Not Threatened
Teredo navalis L., 1758 Pfahlwurm Not Evaluated
Tergipes tergipes (Forskål, 1775) Tergipes Data Deficient
Testudinalia testudinalis (O.F. Müller, 1776) Echte Schildkrötenschnecke Not Threatened
Thalassodrilus prostatus (Knöllner, 1935) Near Threatened
Tharyx multibranchiis (Grube, 1863) Extremely Rare
Thecocodium quadratum (Werner, 1965) Data Deficient
Thelepus cincinnatus (Fabricius, 1780) Data Deficient
Themisto gaudichaudii Guérin-Méneville, 1825 Data Deficient
Thia scutellata (Fabricius, 1793) Data Deficient
Thracia convexa (W. Wood, 1815) Aufgeblasene Spatelmuschel Extremely Rare
Thracia papyracea (Poli, 1791) Stumpfe Spatelmuschel Not Threatened
Thracia pubescens (Pulteney, 1799) Lange Spatelmuschel Extremely Rare
Thracia villosiuscula (MacGillivray, 1827) Granulierte Spatelmuschel Not Threatened
Thyasira flexuosa (Montagu, 1803) Gewöhnliche Faltenmuschel Not Threatened
Thyasira striata (Sturany, 1896) Extinct or Lost
Thyone fusus (O.F. Müller, 1776) Spitze Seegurke Data Deficient
Thyonidium drummondii (Thompson, 1840) Spindel-Seegurke Data Deficient
Timoclea ovata (Pennant, 1777) Ovale Teppichmuschel Threat of Unknown Extent
Tmetonyx cicada (Fabricius, 1780) Data Deficient
Tmetonyx similis (Sars, 1891) Data Deficient
Tomopteris helgolandica (Greeff, 1879) Not Evaluated
Tomopteris septentrionalis Steenstrup, 1849 Not Evaluated
Tornus subcarinatus (Montagu, 1803) Gekielte Tornus Data Deficient
Travisia forbesii Johnston, 1840 Threat of Unknown Extent
Trichobranchus glacialis Malmgren, 1866 Data Deficient
Trichobranchus roseus (Malm, 1874) Not Threatened
Trichydra pudica Wright, 1858 Data Deficient
Triticella flava Dalyell, 1848 Not Threatened
Tritonia hombergii Cuvier, 1803 Große Tritonia Not Threatened
Tritonia plebeia Johnston, 1828 Europäische Nacktschnecke Not Threatened
Trivia monacha (da Costa, 1778) Gefleckte Scheinkauri Threat of Unknown Extent
Trochochaeta multisetosa (Ørsted, 1844) Data Deficient
Trypetesa lampas (Hancock, 1849) Data Deficient
Tryphosella horingi (Boeck, 1871) Extremely Rare
Tryphosella sarsi Bonnier, 1893 Extremely Rare
Tryphosites longipes (Bate & Westwood, 1861) Not Threatened
Tubifex nerthus Michaelsen, 1908 Near Threatened
Tubifex tubifex (O.F. Müller, 1774) Data Deficient
Tubificoides amplivasatus (Erséus, 1975) Data Deficient
Tubificoides benedii (d'Udekem, 1855) Not Threatened
Tubificoides heterochaetus (Michaelsen, 1926) Near Threatened
Tubificoides pseudogaster (Dahl, 1960) Threat of Unknown Extent
Tubularia indivisa L., 1758 Data Deficient
Tubulipora liliacea (Pallas, 1766) Extremely Rare
Turbonilla acuta (Donovan, 1804) Spitze Pyramidenschnecke Not Threatened
Turbonilla lactea (L., 1758) Milchweiße Pyramidenschnecke Extremely Rare
Turritella communis Risso, 1826 Gemeine Turmschnecke Threat of Unknown Extent
Turritella turbona Monterosato, 1877  Extinct or Lost
U
Uncinais uncinata (Ørsted, 1842) Data Deficient
Unciola crenatipalma (Bate, 1862) Data Deficient
Unciola planipes Norman, 1867 Near Threatened
Upogebia deltaura (Leach, 1815) Threat of Unknown Extent
Upogebia pusilla (Petagna, 1792) Threat of Unknown Extent
Upogebia stellata (Montagu, 1808) Highly Threatened
Urnatella gracilis Leidy, 1851 Data Deficient
Urothoe elegans (Bate, 1857) Data Deficient
Urothoe marina (Bate, 1857) Data Deficient
Urothoe poseidonis Reibisch, 1905 Not Threatened
Urticina eques (Gosse, 1858) Threatened
Urticina felina (L., 1761) Dickhörnige Seerose Threat of Unknown Extent
V
Vaunthompsonia cristata Bate, 1858 Not Threatened
Vejdovskyella intermedia (Bretscher, 1896) Data Deficient
Velutina velutina (O.F. Müller, 1776) Samtschnecke Data Deficient
Venerupis senegalensis (Gmelin, 1791) Teppichmuschel Threat of Unknown Extent
Venus casina L., 1758 Not Threatened
Verruca stroemia (O.F. Müller, 1776) Not Threatened
Victorella pavida Saville Kent, 1870 Data Deficient
Virgularia mirabilis (Müller, 1776) Extremely Rare
Vitreolina philippi (de Rayneval & Ponzi, 1854) Extremely Rare
W
Walkeria uva (L., 1758) Not Threatened
Websterinereis glauca (Claparède, 1870) Not Threatened
Westwoodilla caecula (Bate, 1857) Data Deficient
Z
Zeppelina monostyla (Zeppelin, 1883) Data Deficient
Zirfaea crispata (L., 1758) Rauhe Bohrmuschel Data Deficient