WoRMS taxon details
Brachionus leydigii Cohn, 1862
134981 (urn:lsid:marinespecies.org:taxname:134981)
accepted
Species
Brachionus leydigii f. quadratus Rousselet, 1889 · unaccepted > junior subjective synonym
Brachionus leydigii var. baicalensis Gaigalas, 1958 · unaccepted > junior subjective synonym
Brachionus leydigii var. tridentatus Zernov, 1901 · unaccepted > junior subjective synonym
Brachionus leydigii var. tridentatus f. tripartitus Leissling, 1924 · unaccepted (no nomenclatural status)
Brachionus quadratus Rousselet, 1889 · unaccepted > superseded combination
Brachionus quadratus var. granulatus Bloedorn, 1912 · unaccepted > junior subjective synonym
Brachionus quadratus var. rotundatus Nachtwey, 1921 · unaccepted (no nomenclatural_status)
Brachionus quadratus var. tridentatus Zernov, 1901 · unaccepted > superseded combination
Brachionus quadratus var. tridentatus f. tripartitus Leissling, 1924 · unaccepted (no nomenclatural status)
Brachionus reticulatus Kertész, 1894 · unaccepted > junior subjective synonym
- Subspecies Brachionus leydigii rotundus Rousselet, 1907
brackish, fresh
Distribution A single specimen record of this predominantly western hemispheric species (represented by var. tridentatus Zernov) from...
Taxonomy Brachionus quadratus Rousselet after Arévalo (1918);
not B. leydigii Cohn after Sharma & Sharma (2015) [=B....
Distribution A single specimen record of this predominantly western hemispheric species (represented by var. tridentatus Zernov) from Lake Erie (Joe Connolly, in litt.; and Connolly et al. 2018) represents the first substantiated report of B. leydigii in the Americas. The species has before already been listed by the Great Lakes Aquatic Nonindigenous Species Information System (GLANSIS) as “having a high probability of introduction to the Great Lakes” and as “having a moderate probability of establishment if introduced to the Great Lakes” (GLANSIS, 2015: https://nas.er.usgs.gov/queries/greatlakes/FactSheet.aspx?SpeciesID=54&Potential=Y&Type=2&HUCNumber=; accessed 6. July 2017), following a report of the detection of a single specimen of B. leydigii in the ballast water of a transoceanic vessel in Hamilton Harbor, Lake Ontario. Earlier reports of this species from North America (e.g. Kofoid (1908), Ahlstrom (1934) and (1940)), in the absence of associated sketches could not be confirmed). [details]
Taxonomy Brachionus quadratus Rousselet after Arévalo (1918);
not B. leydigii Cohn after Sharma & Sharma (2015) [=B....
Taxonomy Brachionus quadratus Rousselet after Arévalo (1918);
not B. leydigii Cohn after Sharma & Sharma (2015) [=B. quadridentatus f. rhenanus Lauterborn] [details]
not B. leydigii Cohn after Sharma & Sharma (2015) [=B. quadridentatus f. rhenanus Lauterborn] [details]
Jersabek, C. D.; Segers H.; Leitner M. (2026). Rotifer World Catalog (RWC). Brachionus leydigii Cohn, 1862. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=134981 on 2026-09-26
Date
action
by
2004-12-21 15:54:05Z
created
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Cohn, F. (1862). Bemerkungen über Räderthiere. III. Zeitschrift für wissenschaftliche Zoologie, 12, 197-217, pl.20-22
page(s): p.215, pl.22, figs.1-3 [details] Available for editors
[request]
original description (of Brachionus quadratus var. granulatus Bloedorn, 1912) Bloedorn, J. (1912). Über die Rädertierfauna der Provinz Posen. Jahresberichte des Königlichen Friedrich-Wilhelms-Gymnasiums in Berlin, Beilage zum Programm Nr. 239, 1-38
page(s): p.33 [details] Available for editors [request]
original description (of Brachionus leydigii var. baicalensis Gaigalas, 1958) Gaigalas, K. S. (1958). K posnaniu fauni kolovratok ozera Baikal. Izvestiia biologo-geografisheskogo Nauchno-Issledovatel'skogo Instituta pri Gosudarstvennom Irkutskom Universitete, 17, 103-143
page(s): p.111, fig.2 [details] Available for editors [request]
original description (of Brachionus reticulatus Kertész, 1894) Kertész, K. (1894). Budapest és környékének Rotatoria-faunája. Budapest. Rózsa Kálmán és Neje Könyvnyomdája, 55, 1 pl., available online at https://doi.org/10.5962/bhl.title.46810
page(s): p.51, pl.1, fig.6 [details] Available for editors [request]
original description (of Brachionus quadratus var. tridentatus f. tripartitus Leissling, 1924) Leissling, R. (1924). Zur Kenntnis einiger in Deutschland bisher wenig oder nicht bekannter Rädertierarten. Schriften für Süßwasser- und Meereskunde, 3, 66-73, 1 pl.
page(s): p.70, fig.4 [details] Available for editors [request]
original description (of Brachionus quadratus var. rotundatus Nachtwey, 1921) Nachtwey, R. (1921). Ein neues Rädertier: Brachionus quadratus Rousselet var. rotundatus. Zoologischer Anzeiger, 52, 125-127
page(s): p.125, figs.1-5 [details] Available for editors [request]
original description (of Brachionus leydigii f. quadratus Rousselet, 1889) Rousselet, C. F. (1889). Note on Brachionus quadratus, a new rotifer. Journal of the Quekett Microscopical Club, (ser. 2) 4, 32-33, pl.4
page(s): p.32, pl.4, figs.3-5 [details] Available for editors [request]
original description (of Brachionus quadratus Rousselet, 1889) Rousselet, C. F. (1889). Note on Brachionus quadratus, a new rotifer. Journal of the Quekett Microscopical Club, (ser. 2) 4, 32-33, pl.4
page(s): p.32, pl.4, figs.3-5 [details] Available for editors [request]
original description (of Brachionus quadratus var. tridentatus Zernov, 1901) Zernov, S. A. (1901). Zametki o zhivotnom planktone rek Shoshmy i Vjatki Malmyzhskogo ujezda Vjatskoj gub. Izvestija Imperatorskogo Obshchestva Lyubitelei Jestestvoznanija, Antropologii i Etnografii pri Moskovskom Universitjete, 98 (2), 25-36, pl.4
page(s): p.31, pl.4, figs.19,20 [details] Available for editors [request]
basis of record O'Reilly, M. (2001). Rotifera, <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. 149-151 (look up in IMIS) [details]
page(s): p.215, pl.22, figs.1-3 [details] Available for editors
[request]original description (of Brachionus quadratus var. granulatus Bloedorn, 1912) Bloedorn, J. (1912). Über die Rädertierfauna der Provinz Posen. Jahresberichte des Königlichen Friedrich-Wilhelms-Gymnasiums in Berlin, Beilage zum Programm Nr. 239, 1-38
page(s): p.33 [details] Available for editors
[request]original description (of Brachionus leydigii var. baicalensis Gaigalas, 1958) Gaigalas, K. S. (1958). K posnaniu fauni kolovratok ozera Baikal. Izvestiia biologo-geografisheskogo Nauchno-Issledovatel'skogo Instituta pri Gosudarstvennom Irkutskom Universitete, 17, 103-143
page(s): p.111, fig.2 [details] Available for editors
[request]original description (of Brachionus reticulatus Kertész, 1894) Kertész, K. (1894). Budapest és környékének Rotatoria-faunája. Budapest. Rózsa Kálmán és Neje Könyvnyomdája, 55, 1 pl., available online at https://doi.org/10.5962/bhl.title.46810
page(s): p.51, pl.1, fig.6 [details] Available for editors
[request]original description (of Brachionus quadratus var. tridentatus f. tripartitus Leissling, 1924) Leissling, R. (1924). Zur Kenntnis einiger in Deutschland bisher wenig oder nicht bekannter Rädertierarten. Schriften für Süßwasser- und Meereskunde, 3, 66-73, 1 pl.
page(s): p.70, fig.4 [details] Available for editors
[request]original description (of Brachionus quadratus var. rotundatus Nachtwey, 1921) Nachtwey, R. (1921). Ein neues Rädertier: Brachionus quadratus Rousselet var. rotundatus. Zoologischer Anzeiger, 52, 125-127
page(s): p.125, figs.1-5 [details] Available for editors
[request]original description (of Brachionus leydigii f. quadratus Rousselet, 1889) Rousselet, C. F. (1889). Note on Brachionus quadratus, a new rotifer. Journal of the Quekett Microscopical Club, (ser. 2) 4, 32-33, pl.4
page(s): p.32, pl.4, figs.3-5 [details] Available for editors
[request]original description (of Brachionus quadratus Rousselet, 1889) Rousselet, C. F. (1889). Note on Brachionus quadratus, a new rotifer. Journal of the Quekett Microscopical Club, (ser. 2) 4, 32-33, pl.4
page(s): p.32, pl.4, figs.3-5 [details] Available for editors
[request]original description (of Brachionus quadratus var. tridentatus Zernov, 1901) Zernov, S. A. (1901). Zametki o zhivotnom planktone rek Shoshmy i Vjatki Malmyzhskogo ujezda Vjatskoj gub. Izvestija Imperatorskogo Obshchestva Lyubitelei Jestestvoznanija, Antropologii i Etnografii pri Moskovskom Universitjete, 98 (2), 25-36, pl.4
page(s): p.31, pl.4, figs.19,20 [details] Available for editors
[request]basis of record O'Reilly, M. (2001). Rotifera, <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. 149-151 (look up in IMIS) [details]
Other
context source (Schelde)
Maris, T.; Oosterlee, L.; Meire, P. (2015). Onderzoek naar de gevolgen van het Sigmaplan, baggeractiviteiten en havenuitbreiding in de Zeeschelde op het milieu. Geïntegreerd eindverslag van het onderzoek verricht in 2013. <em>ECOBE 015-R173. Universiteit Antwerpen: Antwerpen.</em> (look up in IMIS) [details]
additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
additional source Koste, W. (1978). Rotatoria. Die Rädertiere Mitteleuropas. Ein Bestimmungswerk, begründet von Max Voigt. Überordnung Monogononta. Berlin, Stuttgart. Gebrüder Borntraeger, 2, 673, 234 pls. [details] Available for editors [request]
additional source Segers, H. (2007). Annotated checklist of the rotifers (Phylum Rotifera), with notes on nomenclature, taxonomy and distribution. Zootaxa, 1564, 1-104, available online at http://www.mapress.com/zootaxa/2007f/zt01564p104.pdf [details] Available for editors [request]
additional source Integrated Taxonomic Information System (ITIS). , available online at http://www.itis.gov [details]
additional source Koste, W. (1978). Rotatoria. Die Rädertiere Mitteleuropas. Ein Bestimmungswerk, begründet von Max Voigt. Überordnung Monogononta. Berlin, Stuttgart. Gebrüder Borntraeger, 2, 673, 234 pls. [details] Available for editors
[request]additional source Segers, H. (2007). Annotated checklist of the rotifers (Phylum Rotifera), with notes on nomenclature, taxonomy and distribution. Zootaxa, 1564, 1-104, available online at http://www.mapress.com/zootaxa/2007f/zt01564p104.pdf [details] Available for editors
[request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
Nontype (of Brachionus leydigii f. quadratus Rousselet, 1889) NHMUK 1917.1.1.1030 [details]
Nontype (of Brachionus leydigii f. quadratus Rousselet, 1889) NHMUK 1917.1.1.1048 [details]
Nontype (of Brachionus quadratus var. rotundatus Nachtwey, 1921) ANSP 1115, geounit Schleswig-Holstein [details]
Nontype (of Brachionus quadratus Rousselet, 1889) NHMUK 1917.1.1.1030 [details]
Nontype (of Brachionus quadratus Rousselet, 1889) NHMUK 1917.1.1.1048 [details]
Nontype ANSP 0495, geounit Germany [details]
Nontype ANSP 0532, geounit Sweden [details]
Nontype ANSP 0601 [details]
Nontype ANSP 1115, geounit Schleswig-Holstein [details]
Nontype NHMUK 1935.4.27.273 [details]
From editor or global species database
Distribution A single specimen record of this predominantly western hemispheric species (represented by var. tridentatus Zernov) from Lake Erie (Joe Connolly, in litt.; and Connolly et al. 2018) represents the first substantiated report of B. leydigii in the Americas. The species has before already been listed by the Great Lakes Aquatic Nonindigenous Species Information System (GLANSIS) as “having a high probability of introduction to the Great Lakes” and as “having a moderate probability of establishment if introduced to the Great Lakes” (GLANSIS, 2015: https://nas.er.usgs.gov/queries/greatlakes/FactSheet.aspx?SpeciesID=54&Potential=Y&Type=2&HUCNumber=; accessed 6. July 2017), following a report of the detection of a single specimen of B. leydigii in the ballast water of a transoceanic vessel in Hamilton Harbor, Lake Ontario. Earlier reports of this species from North America (e.g. Kofoid (1908), Ahlstrom (1934) and (1940)), in the absence of associated sketches could not be confirmed). [details]Ecology Brackish water records also include inland saline habitats (Fontaneto et al., 2006). [details]
Grammatical gender Gender agreement: no; name type: genitive noun [details]
Habitat Open water [details]
Taxonomy Brachionus quadratus Rousselet after Arévalo (1918);
not B. leydigii Cohn after Sharma & Sharma (2015) [=B. quadridentatus f. rhenanus Lauterborn] [details]
To Biodiversity Heritage Library (5 publications)
To GenBank (8 nucleotides; 7 proteins)
To PESI
To Yale Peabody Museum of Natural History (YPM IZ 100894)
To ITIS
To GenBank (8 nucleotides; 7 proteins)
To PESI
To Yale Peabody Museum of Natural History (YPM IZ 100894)
To ITIS
From editor or global species database
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(2 specimens)
Unreviewed
Hosted externally
