Traits taxon details
Cognettia Nielsen & Christensen, 1959
414970 (urn:lsid:marinespecies.org:taxname:414970)
accepted
Genus
Chamaedrilus Friend, 1913 · unaccepted (Cognettia given precedence over...)
Cognettia given precedence over Chamaedrilus and Euenchytraeus when they are considered synonyms (ICZN 2018).
- Species Cognettia asloae (Martinsson, Klinth & Erséus, 2018)
- Species Cognettia baekrokdamensis (Dózsa-Farkas, Felföldi, Nagy & Hong, 2018)
- Species Cognettia bisetosa Christensen & Dózsa-Farkas, 1999
- Species Cognettia chalupskyi (Martinsson, Rota & Erséus, 2015)
- Species Cognettia chlorophila (Friend, 1913)
- Species Cognettia cognettii (Issel, 1905)
- Species Cognettia floridae Healy, 1996
- Species Cognettia glandulosa (Michaelsen, 1888)
- Species Cognettia hayachinensis Nakamura, 2001
- Species Cognettia hibernica Healy, 1975
- Species Cognettia koreana Felföldi, Dózsa-Farkas, Nagy & Hong, 2020
- Species Cognettia lapponica Nurminen, 1965
- Species Cognettia ozensis (Torii, 2015)
- Species Cognettia paxi (Moszyński, 1938)
- Species Cognettia pseudosphagnetorum (Martinsson, Erséus & Rota, 2015)
- Species Cognettia quadrosetosa Christensen & Dózsa-Farkas, 1999
- Species Cognettia sphagnetorum (Veydovsky, 1878)
- Species Cognettia valeriae Dumnicka, 2010
- Species Cognettia varisetosa (Martinsson, Rota & Erséus, 2015)
- Species Cognettia zicsii Dózsa-Farkas, 1989
marine, fresh, terrestrial
recent only
Nielsen, C. O.; Christensen, B. (1959). The Enchytraeidae: critical revision and taxonomy of European species (Studies on Enchytraeidae VII). <em>Natura Jutlandica.</em> 8-9: 1-160.
page(s): 41 [details] Available for editors
page(s): 41 [details] Available for editors
Martin, P.; Reynolds, J.; van Haaren, T. (2025). World List of Marine Oligochaeta. Cognettia Nielsen & Christensen, 1959. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=414970 on 2025-06-04
Marine Species Traits editorial board (2025). Marine Species Traits. Cognettia Nielsen & Christensen, 1959. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=414970 on 2025-06-04
Date
action
by
original description
Nielsen, C. O.; Christensen, B. (1959). The Enchytraeidae: critical revision and taxonomy of European species (Studies on Enchytraeidae VII). <em>Natura Jutlandica.</em> 8-9: 1-160.
page(s): 41 [details] Available for editors
original description (of Chamaedrilus Friend, 1913) Friend, H. (1913). IX.—British Enchytræids. <em>Journal of Microscopy.</em> 33(3): 255-271. [details]
additional source Nielsen, C. O., Christensen, B. (1961). The Enchytraeidae. critical revision and taxonomy of European species. Supplement 1. <em>Natura Jutlandica.</em> 10(1): 1-23. [details]
status source ICZN. (2018). Opinion 2423 (Case 3689) – Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, Enchytraeidae): conditional precedence given over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. <em>The Bulletin of Zoological Nomenclature.</em> 75(1): 279-281., available online at https://doi.org/10.21805/bzn.v75.a060 [details] Available for editors
status source Martinsson, S. (2019). A morphology-based identification key to the Cognettia species of the world (Clitellata: Enchytraeidae). <em>Soil Organisms.</em> 91(2):37-43., available online at https://doi.org/10.25674/so91103 [details] Available for editors
status source Schmelz, R. M.; Collado, R.; Römbke, J. (2015). Case 3689 Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, enchytraeidae): proposed precedence over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. <em>The Bulletin of Zoological Nomenclature.</em> 72(3): 186-192., available online at https://doi.org/10.21805/bzn.v72i3.a16
note: full explanation of the taxonomic history of the three genera [details] Available for editors
page(s): 41 [details] Available for editors
original description (of Chamaedrilus Friend, 1913) Friend, H. (1913). IX.—British Enchytræids. <em>Journal of Microscopy.</em> 33(3): 255-271. [details]
additional source Nielsen, C. O., Christensen, B. (1961). The Enchytraeidae. critical revision and taxonomy of European species. Supplement 1. <em>Natura Jutlandica.</em> 10(1): 1-23. [details]
status source ICZN. (2018). Opinion 2423 (Case 3689) – Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, Enchytraeidae): conditional precedence given over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. <em>The Bulletin of Zoological Nomenclature.</em> 75(1): 279-281., available online at https://doi.org/10.21805/bzn.v75.a060 [details] Available for editors
status source Martinsson, S. (2019). A morphology-based identification key to the Cognettia species of the world (Clitellata: Enchytraeidae). <em>Soil Organisms.</em> 91(2):37-43., available online at https://doi.org/10.25674/so91103 [details] Available for editors
status source Schmelz, R. M.; Collado, R.; Römbke, J. (2015). Case 3689 Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, enchytraeidae): proposed precedence over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. <em>The Bulletin of Zoological Nomenclature.</em> 72(3): 186-192., available online at https://doi.org/10.21805/bzn.v72i3.a16
note: full explanation of the taxonomic history of the three genera [details] Available for editors
