WoRMS taxon details
Thalassema thalassema (Pallas, 1774)
110375 (urn:lsid:marinespecies.org:taxname:110375)
accepted
Species
Lumbricus thalassema Pallas, 1774 · unaccepted (superseded original combination)
Ochetostomum gaertneri Diesing, 1851 · unaccepted (unnecessary replacement species...)
unnecessary replacement species name for Lumbricus thalassema Pallas, 1774
Ochetostomum mutatorium (Montagu, 1813) · unaccepted (superseded subsequent combination)
Thalassema mutatorium (Montagu, 1813) · unaccepted (junior subjective synonym)
Thalassema neptuni Pallas, 1774 · unaccepted (manuscript name from Gaertner,...)
manuscript name from Gaertner, published as a junior synonym by Pallas
Thalassema rupium Lamarck, 1801 · unaccepted (published as a junior synonym of...)
published as a junior synonym of Lumbricus thalassema Pallas, 1774, though remains some doubts. See Notes below.
Thalassema thalassemum · unaccepted (misspelling introduced by...)
misspelling introduced by Stephens & Edmonds
Thalassina mutatoria Montagu, 1813 · unaccepted (superseded original combination)
marine, brackish, fresh, terrestrial
recent only
(of Lumbricus thalassema Pallas, 1774) Pallas, P. S. (1774). Spicilegia zoologica, quibus novae imprimis et obscurae animalium species iconibus, descriptionibus atque commentariis illustrantur cura P.S. Pallas. <em>[Book series, 14 volumes].</em> Fasciculus Decimus. Zoophyta quaedam minuta. Pp. 1-41, 4 plates. A. Lange, Berlin., available online at https://biodiversitylibrary.org/page/27823183
page(s): 8 [details]
page(s): 8 [details]
WoRMS (2026). Thalassema thalassema (Pallas, 1774). Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=110375 on 2026-03-19
Date
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Nomenclature
original description
(of Lumbricus thalassema Pallas, 1774) Pallas, P. S. (1774). Spicilegia zoologica, quibus novae imprimis et obscurae animalium species iconibus, descriptionibus atque commentariis illustrantur cura P.S. Pallas. <em>[Book series, 14 volumes].</em> Fasciculus Decimus. Zoophyta quaedam minuta. Pp. 1-41, 4 plates. A. Lange, Berlin., available online at https://biodiversitylibrary.org/page/27823183
page(s): 8 [details]
original description (of Ochetostomum gaertneri Diesing, 1851) Diesing, C. M. (1851). Systema Helminthum. Vol. II. Wilhelmum Braumüller, Vindobonae. vi + 588 pp., available online at https://www.biodiversitylibrary.org/page/32506556
page(s): 73 [details]
original description (of Thalassina mutatoria Montagu, 1813) Montagu, G. (1813). Descriptions of several new or rare animals, principally marine, discovered on the south coast of Devonshire. <em>Transactions of the Linnean Society of London.</em> 11(1): 1–26, pls. 1–5., available online at http://biodiversitylibrary.org/page/756542 [details]
original description (of Thalassema neptuni Pallas, 1774) Pallas, P. S. (1774). Spicilegia zoologica, quibus novae imprimis et obscurae animalium species iconibus, descriptionibus atque commentariis illustrantur cura P.S. Pallas. <em>[Book series, 14 volumes].</em> Fasciculus Decimus. Zoophyta quaedam minuta. Pp. 1-41, 4 plates. A. Lange, Berlin., available online at https://biodiversitylibrary.org/page/27823183
page(s): 8. [details]
original description (of Thalassema rupium Lamarck, 1801) Lamarck, J. B. (1801). Système des animaux sans vertèbres, ou tableau général des classes, des ordres et des genres de ces animaux. <em>Published by the author and Deterville, Paris.</em> : viii + 432 pp., available online at http://biodiversitylibrary.org/page/14117719
page(s): 329 [details]
page(s): 8 [details]
original description (of Ochetostomum gaertneri Diesing, 1851) Diesing, C. M. (1851). Systema Helminthum. Vol. II. Wilhelmum Braumüller, Vindobonae. vi + 588 pp., available online at https://www.biodiversitylibrary.org/page/32506556
page(s): 73 [details]
original description (of Thalassina mutatoria Montagu, 1813) Montagu, G. (1813). Descriptions of several new or rare animals, principally marine, discovered on the south coast of Devonshire. <em>Transactions of the Linnean Society of London.</em> 11(1): 1–26, pls. 1–5., available online at http://biodiversitylibrary.org/page/756542 [details]
original description (of Thalassema neptuni Pallas, 1774) Pallas, P. S. (1774). Spicilegia zoologica, quibus novae imprimis et obscurae animalium species iconibus, descriptionibus atque commentariis illustrantur cura P.S. Pallas. <em>[Book series, 14 volumes].</em> Fasciculus Decimus. Zoophyta quaedam minuta. Pp. 1-41, 4 plates. A. Lange, Berlin., available online at https://biodiversitylibrary.org/page/27823183
page(s): 8. [details]
original description (of Thalassema rupium Lamarck, 1801) Lamarck, J. B. (1801). Système des animaux sans vertèbres, ou tableau général des classes, des ordres et des genres de ces animaux. <em>Published by the author and Deterville, Paris.</em> : viii + 432 pp., available online at http://biodiversitylibrary.org/page/14117719
page(s): 329 [details]
Other
additional source
Hayward, P.J. & J.S. Ryland (Eds.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. <em>Clarendon Press: Oxford, UK.</em> 627 pp. (look up in IMIS), available online at https://doi.org/10.1093/oso/9780198573562.001.0001 [details] Available for editors 
[request]
additional source van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
additional source van der Land, J. (2001). Echiura, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 178 (look up in IMIS) [details]
additional source Murina, Vantsetti. List of Echiura. [details]
additional source Rietsch, M. (1886). Étude sur les Géphyriens armés ou Échiuriens. <em>Recueil Zoologique Suisse.</em> 3: 314–515, plates XVII–XXII., available online at https://www.biodiversitylibrary.org/page/14349833 [details]
additional source Biseswar, Ramlall. (2019). The echiuran fauna of southern Africa (Class: Echiura, Phylum: Annelida). <em>African Zoology.</em> 54(2): 73–90., available online at https://doi.org/10.1080/15627020.2019.1600429 [details] Available for editors [request]
[request]additional source van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
additional source van der Land, J. (2001). Echiura, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 178 (look up in IMIS) [details]
additional source Murina, Vantsetti. List of Echiura. [details]
additional source Rietsch, M. (1886). Étude sur les Géphyriens armés ou Échiuriens. <em>Recueil Zoologique Suisse.</em> 3: 314–515, plates XVII–XXII., available online at https://www.biodiversitylibrary.org/page/14349833 [details]
additional source Biseswar, Ramlall. (2019). The echiuran fauna of southern Africa (Class: Echiura, Phylum: Annelida). <em>African Zoology.</em> 54(2): 73–90., available online at https://doi.org/10.1080/15627020.2019.1600429 [details] Available for editors
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Spelling The specific name "thalassema" is neuter noun (see Nishikawa 1998), so it cannot not be changed. It cannot change suffix when first used as a species-group name (Lumbricus thalassema) and then recombined (Thalassema thalassema). Thus 'thalassemum' as if a variable adjective in Stephens & Edmonds (1976) is incorrect. [details]Unreviewed
Habitat coastal [details]
Marine Life Information Network - UK
To Barcode of Life (from synonym Thalassema thalassemum)
To Biodiversity Heritage Library (1 publication)
To European Nucleotide Archive, ENA (Thalassema thalassema)
To GenBank (2 nucleotides; 0 proteins) (from synonym Lumbricus thalassema Pallas, 1774)
To GenBank (2 nucleotides; 0 proteins) (from synonym Thalassema thalassemum)
To GenBank (2 nucleotides; 0 proteins)
To PESI
To ITIS
To Barcode of Life (from synonym Thalassema thalassemum)
To Biodiversity Heritage Library (1 publication)
To European Nucleotide Archive, ENA (Thalassema thalassema)
To GenBank (2 nucleotides; 0 proteins) (from synonym Lumbricus thalassema Pallas, 1774)
To GenBank (2 nucleotides; 0 proteins) (from synonym Thalassema thalassemum)
To GenBank (2 nucleotides; 0 proteins)
To PESI
To ITIS
