Turbellarians taxon details
Gnesioceros sargassicola (Mertens, 1833) Hyman, 1939
158296 (urn:lsid:marinespecies.org:taxname:158296)
accepted
Species
Gnesioceros mertens (Diesing, 1850) · unaccepted
Gnesioceros mertensi (Diesing, 1850) Diesing, 1862 · unaccepted > junior subjective synonym
Pelagoplana sargassicola (Mertens, 1833) Bock, 1913 · unaccepted > superseded combination
Planaria sargassicola Mertens, 1833 · unaccepted > superseded combination
Planocera sargassicola (Mertens, 1833) Örsted, 1844 · unaccepted > superseded combination
Stylochoplana sargassicola (Mertens, 1833) Graff, 1892 · unaccepted > superseded combination
Stylochus mertensi Diesing, 1850 · unaccepted > superseded combination
Stylochus pelagicus Moseley, 1877 · unaccepted
Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836 · unaccepted > superseded combination
marine, brackish, fresh, terrestrial
(of Planaria sargassicola Mertens, 1833) Mertens, H. (1833). Untersuchungen über den innern Bau verschiedener in der See lebender Planarien. <em>Mémoires de l'Académie impériale des sciences de St.- Pétersbourg. 6e série, Sciences mathématiques, physiques et naturelles.</em> (6) 2: 3-17. [details] 
Distribution Virginian, southside of Cape Cod to Cape Hatteras
Distribution Virginian, southside of Cape Cod to Cape Hatteras [details]
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Gnesioceros sargassicola (Mertens, 1833) Hyman, 1939. Accessed at: https://www.marinespecies.org/turbellarians/aphia.php?p=taxdetails&id=158296 on 2026-07-13
Date
action
by
original description
(of Planaria sargassicola Mertens, 1833) Mertens, H. (1833). Untersuchungen über den innern Bau verschiedener in der See lebender Planarien. <em>Mémoires de l'Académie impériale des sciences de St.- Pétersbourg. 6e série, Sciences mathématiques, physiques et naturelles.</em> (6) 2: 3-17. [details]
original description (of Stylochus mertensi Diesing, 1850) Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. <em>[book].</em> xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater [details]
original description (of Stylochus pelagicus Moseley, 1877) Moseley, H. N. (1877). On Stylochus pelagicus, an new Species of Pelagic Planarian, with notes on other Pelagic Species, on the Larval Forms of Thysanozoon, and of a Gymnosomatous Pteropod. <em>Quarterly Journal of Microscopical Science.</em> 17: 23-32, Plate III., available online at https://doi.org/10.1242/jcs.s2-17.65.23 [details]
original description (of Gnesioceros mertens (Diesing, 1850)) Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. <em>[book].</em> xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater [details]
context source (Bermuda) Hyman, L. H. (1939). Acoel and polyclad Turbellaria from Bermuda and the Sargassum. <em>Bulletin of the Bingham Oceonographic Collection.</em> 7 (1): 1-26 + 9 pl. [details] Available for editors
basis of record Pollock, L.W. (1998). A practical guide to the marine animals of northeastern North America. Rutgers University Press. New Brunswick, New Jersey & London. 367 pp., available online at http://books.google.com/books?id=i1AmT31cuR4C [details]
additional source Hooge, M. D. and L. J. Newman. 2009. Turbellarians (Acoelomorpha and Free-Living Platyhelminthes) of the Gulf of Mexico, Pp. 413–418 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College St [details]
additional source Ramos-Sánchez, M. (2024). The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species. <em>European Journal of Taxonomy.</em> 962: 1–67., available online at https://doi.org/10.5852/ejt.2024.962.2683 [details] Available for editors
additional source Cuadrado, D.; Hernández-Gonzalez, A.; Noreña, C.; Simões, N. (2024). Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species. <em>ZooKeys.</em> 1221: 103-144., available online at https://doi.org/10.3897/zookeys.1221.128260 [details] Available for editors
additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
new combination reference Hyman, L. H. (1939). Some polyclads of the New England coast, especially of the Woods Hole region. <em>Biol Bull (Woods Hole).</em> 127-152., available online at https://doi.org/10.2307/1537854 [details] Available for editors
basis of record (of Gnesioceros mertens (Diesing, 1850)) Tyler, S.; Schilling, S.; Hooge, M.; Bush, L. F. (comp.). (2006-2016). Turbellarian taxonomic database. Version 1.7., available online at http://turbellaria.umaine.edu [details]
source of synonymy (of Gnesioceros mertensi (Diesing, 1850) Diesing, 1862) Lang, A. (1884). Die Polycladen (Seeplanarien) des Golfes von Neapel und der angrenzenden Meeresabschnitte. Eine Monographie. Fauna Flora Golfes Neapel. W. Engelmann, Leipzig. <em>Fauna Flora des Golfes von Neapel und der angrenzenden Meeresabschnitte.</em> Verlag von Wilhellm Engelmann. Leipzig. I–XI, 1–688. Separate atlas with 39 plates., available online at https://doi.org/10.5962/bhl.title.10545 [details]
new combination reference (of Pelagoplana sargassicola (Mertens, 1833) Bock, 1913) Bock, S. (1913). Studien ueber Polycladen. <em>Zoologiska Bidrag från Uppsala.</em> 2: 31-344. Tafeln III-X. [details]
new combination reference (of Stylochoplana sargassicola (Mertens, 1833) Graff, 1892) Graff, L. von. (1892). Pelagische Polycladen. <em>Zeitschrift für wissenschaftliche Zoologie.</em> 55: 189-219, pls. 7-10. [details]
new combination reference (of Planocera sargassicola (Mertens, 1833) Örsted, 1844) Örsted, A.S. (1844). Entwurf einer systematischen Einteilung und speciellen Beschreibung der Plattwuermer auf microscopische Untersuchungen gegründet. <em>J.C. Scharling, Copenhagen.</em> 96 p., 3 taf. [details]
new combination reference (of Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836) Ehrenberg, C. G. (1836). Die Akalephen des Rothen Meeres und der Organismus der Medusen der Ostsee erläutert und auf Systematik angewendet. <em>Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin.</em> 111 pp. [details]
original description (of Stylochus mertensi Diesing, 1850) Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. <em>[book].</em> xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater [details]
original description (of Stylochus pelagicus Moseley, 1877) Moseley, H. N. (1877). On Stylochus pelagicus, an new Species of Pelagic Planarian, with notes on other Pelagic Species, on the Larval Forms of Thysanozoon, and of a Gymnosomatous Pteropod. <em>Quarterly Journal of Microscopical Science.</em> 17: 23-32, Plate III., available online at https://doi.org/10.1242/jcs.s2-17.65.23 [details]
original description (of Gnesioceros mertens (Diesing, 1850)) Diesing, C.M. [[Karl Moritz, usually as Latin C. M = Carolo Mauritio]. (1850). Systema Helminthum. Vol. I. <em>[book].</em> xiii[xvi] + 679 pp.W. Vindobonae, Braumüller, Wien., available online at https://archive.org/details/systemahelminth00diesgoog/page/n5/mode/2up?view=theater [details]
context source (Bermuda) Hyman, L. H. (1939). Acoel and polyclad Turbellaria from Bermuda and the Sargassum. <em>Bulletin of the Bingham Oceonographic Collection.</em> 7 (1): 1-26 + 9 pl. [details] Available for editors
basis of record Pollock, L.W. (1998). A practical guide to the marine animals of northeastern North America. Rutgers University Press. New Brunswick, New Jersey & London. 367 pp., available online at http://books.google.com/books?id=i1AmT31cuR4C [details]
additional source Hooge, M. D. and L. J. Newman. 2009. Turbellarians (Acoelomorpha and Free-Living Platyhelminthes) of the Gulf of Mexico, Pp. 413–418 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College St [details]
additional source Ramos-Sánchez, M. (2024). The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species. <em>European Journal of Taxonomy.</em> 962: 1–67., available online at https://doi.org/10.5852/ejt.2024.962.2683 [details] Available for editors
additional source Cuadrado, D.; Hernández-Gonzalez, A.; Noreña, C.; Simões, N. (2024). Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species. <em>ZooKeys.</em> 1221: 103-144., available online at https://doi.org/10.3897/zookeys.1221.128260 [details] Available for editors
additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
new combination reference Hyman, L. H. (1939). Some polyclads of the New England coast, especially of the Woods Hole region. <em>Biol Bull (Woods Hole).</em> 127-152., available online at https://doi.org/10.2307/1537854 [details] Available for editors
basis of record (of Gnesioceros mertens (Diesing, 1850)) Tyler, S.; Schilling, S.; Hooge, M.; Bush, L. F. (comp.). (2006-2016). Turbellarian taxonomic database. Version 1.7., available online at http://turbellaria.umaine.edu [details]
source of synonymy (of Gnesioceros mertensi (Diesing, 1850) Diesing, 1862) Lang, A. (1884). Die Polycladen (Seeplanarien) des Golfes von Neapel und der angrenzenden Meeresabschnitte. Eine Monographie. Fauna Flora Golfes Neapel. W. Engelmann, Leipzig. <em>Fauna Flora des Golfes von Neapel und der angrenzenden Meeresabschnitte.</em> Verlag von Wilhellm Engelmann. Leipzig. I–XI, 1–688. Separate atlas with 39 plates., available online at https://doi.org/10.5962/bhl.title.10545 [details]
new combination reference (of Pelagoplana sargassicola (Mertens, 1833) Bock, 1913) Bock, S. (1913). Studien ueber Polycladen. <em>Zoologiska Bidrag från Uppsala.</em> 2: 31-344. Tafeln III-X. [details]
new combination reference (of Stylochoplana sargassicola (Mertens, 1833) Graff, 1892) Graff, L. von. (1892). Pelagische Polycladen. <em>Zeitschrift für wissenschaftliche Zoologie.</em> 55: 189-219, pls. 7-10. [details]
new combination reference (of Planocera sargassicola (Mertens, 1833) Örsted, 1844) Örsted, A.S. (1844). Entwurf einer systematischen Einteilung und speciellen Beschreibung der Plattwuermer auf microscopische Untersuchungen gegründet. <em>J.C. Scharling, Copenhagen.</em> 96 p., 3 taf. [details]
new combination reference (of Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836) Ehrenberg, C. G. (1836). Die Akalephen des Rothen Meeres und der Organismus der Medusen der Ostsee erläutert und auf Systematik angewendet. <em>Abhandlungen der Königlichen Akademie der Wissenschaften in Berlin.</em> 111 pp. [details]
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Distribution Virginian, southside of Cape Cod to Cape Hatteras [details]
To Biodiversity Heritage Library (14 publications) (from synonym Planocera sargassicola (Mertens, 1833) Örsted, 1844)
To Biodiversity Heritage Library (19 publications) (from synonym Stylochoplana sargassicola (Mertens, 1833) Graff, 1892)
To Biodiversity Heritage Library (2 publications) (from synonym Stylochus mertensi Diesing, 1850)
To Biodiversity Heritage Library (2 publications) (from synonym Pelagoplana sargassicola (Mertens, 1833) Bock, 1913)
To Biodiversity Heritage Library (31 publications) (from synonym Stylochus pelagicus Moseley, 1877)
To Biodiversity Heritage Library (31 publications) (from synonym Stylochus pelagicus Moseley, 1877)
To Biodiversity Heritage Library (7 publications)
To Biodiversity Heritage Library (8 publications) (from synonym Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836)
To European Nucleotide Archive, ENA (Gnesioceros sargassicola)
To GenBank (1 nucleotides; 0 proteins)
To the Turbellarian Taxonomic Database
(from synonym Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836)
To the Turbellarian Taxonomic Database
(from synonym Gnesioceros mertens (Diesing, 1850))
To the Turbellarian Taxonomic Database
To the Turbellarian Taxonomic Database
(from synonym Planaria sargassicola Mertens, 1833)
To the Turbellarian Taxonomic Database
(from synonym Gnesioceros mertensi (Diesing, 1850) Diesing, 1862)
To the Turbellarian Taxonomic Database
(from synonym Pelagoplana sargassicola (Mertens, 1833) Bock, 1913)
To the Turbellarian Taxonomic Database
(from synonym Stylochus pelagicus Moseley, 1877)
To the Turbellarian Taxonomic Database
(from synonym Stylochus mertensi Diesing, 1850)
To the Turbellarian Taxonomic Database
(from synonym Stylochoplana sargassicola (Mertens, 1833) Graff, 1892)
To the Turbellarian Taxonomic Database
(from synonym Planocera sargassicola (Mertens, 1833) Örsted, 1844)
To USNM Invertebrate Zoology Platyhelminthes Collection (1 record)
To Yale Peabody Museum of Natural History (YPM IZ 020145)
To ITIS
To Biodiversity Heritage Library (19 publications) (from synonym Stylochoplana sargassicola (Mertens, 1833) Graff, 1892)
To Biodiversity Heritage Library (2 publications) (from synonym Stylochus mertensi Diesing, 1850)
To Biodiversity Heritage Library (2 publications) (from synonym Pelagoplana sargassicola (Mertens, 1833) Bock, 1913)
To Biodiversity Heritage Library (31 publications) (from synonym Stylochus pelagicus Moseley, 1877)
To Biodiversity Heritage Library (31 publications) (from synonym Stylochus pelagicus Moseley, 1877)
To Biodiversity Heritage Library (7 publications)
To Biodiversity Heritage Library (8 publications) (from synonym Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836)
To European Nucleotide Archive, ENA (Gnesioceros sargassicola)
To GenBank (1 nucleotides; 0 proteins)
To the Turbellarian Taxonomic Database
(from synonym Stylochus sargassicola (Mertens, 1833) Ehrenberg, 1836)To the Turbellarian Taxonomic Database
(from synonym Gnesioceros mertens (Diesing, 1850))To the Turbellarian Taxonomic Database
To the Turbellarian Taxonomic Database
(from synonym Planaria sargassicola Mertens, 1833)To the Turbellarian Taxonomic Database
(from synonym Gnesioceros mertensi (Diesing, 1850) Diesing, 1862)To the Turbellarian Taxonomic Database
(from synonym Pelagoplana sargassicola (Mertens, 1833) Bock, 1913)To the Turbellarian Taxonomic Database
(from synonym Stylochus pelagicus Moseley, 1877)To the Turbellarian Taxonomic Database
(from synonym Stylochus mertensi Diesing, 1850)To the Turbellarian Taxonomic Database
(from synonym Stylochoplana sargassicola (Mertens, 1833) Graff, 1892)To the Turbellarian Taxonomic Database
(from synonym Planocera sargassicola (Mertens, 1833) Örsted, 1844)To USNM Invertebrate Zoology Platyhelminthes Collection (1 record)
To Yale Peabody Museum of Natural History (YPM IZ 020145)
To ITIS
Unreviewed
Hosted externally