Case 3689: Cognettia Nielsen & Christensen, 1959 (Annelida, Oligochaeta, ENCHYTRAEIDAE): proposed precedence over Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913

Publication Type:Journal Article
Year of Publication:2015
Authors:Schmelz, RM, Collado, R, Römbke, J
Journal:Bulletin of Zoological Nomenclature
Volume:72
Issue:3
Start Page:185
Pagination:185-192
Date Published:09/2015
Type of Article:Case
Keywords:Annelida, Chamaedrilus, Clitellata, Cognettia, Cognettia sphagnetorum, enchytraeid worms, ENCHYTRAEIDAE, Euenchytraeus, Europe, Nomenclature, Oligochaeta, taxonomy
Abstract:

The purpose of this application, under Articles 23.2 and 23.9.3 of the Code, is to conserve the usage of the genus-group name Cognettia Nielsen & Christensen, 1959 (ENCHYTRAEIDAE, Oligochaeta, Annelida) for a genus of annelid worms (type species Pachydrilus sphagnetorum Vejdovský, 1878 (‘1877’)). Cognettia, a name for a Holarctic genus of terrestrial and semi-aquatic annelid worms, is threatened by two subjective senior synonyms, Euenchytraeus Bretscher, 1906 and Chamaedrilus Friend, 1913. If these two names are considered synonyms, Euenchytraeus will replace Cognettia; if they are considered to represent two different genera, Chamaedrilus will replace Cognettia. In 2015 Martinsson et al. adopted the latter course, replacing Cognettia by Chamaedrilus, and allocated its species between both Euenchytraeus and Chamaedrilus. Cognettia is a widely used name and is well-known in the fields of soil biology, ecology, and ecotoxicology, and we propose it be given precedence over Chamaedrilus and Euenchytraeus, which had not been used as valid for almost a century.

Full Text

The International Commission on Zoological Nomenclature is accordingly asked:

(1) to use its plenary power to rule that the genus-group name Cognettia Nielsen & Christensen, 1959 is to be given precedence over:

(a) Euenchytraeus Bretscher, 1906, whenever they are considered to be synonyms;

(b) Chamaedrilus Friend, 1913, whenever they are considered to be synonyms;

(2) to place on the Official List of Generic Names in Zoology the following names:

(a) Cognettia Nielsen & Christensen, 1959 (gender: feminine), type species by original designation Pachydrilus sphagnetorum Vejdovský, 1878 with the two endorsements that:

(i) it is to be given precedence over Euenchytraeus Bretscher, 1906 whenever their type species are placed in the same genus-group taxon;

(ii) it is to be given precedence over Chamaedrilus Friend, 1913, whenever their type species are placed in the same genus-group taxon;

(b) Euenchytraeus Bretscher, 1906 (gender: masculine), type species by monotypy Euenchytraeus bisetosus Bretscher, 1906, with the endorsement that it is not to be given precedence over Cognettia Nielsen & Christensen, 1959, whenever their type species are placed in the same genus-group taxon;

(c) Chamaedrilus Friend, 1913 (gender: masculine), type species by monotypy Chamaedrilus chlorophilus Friend, 1913, with the endorsement that it is not to be given precedence over Cognettia Nielsen & Christensen, 1959, whenever their type species are placed in the same genus-group taxon;

(3) to place on the Official List of Specific Names in Zoology the following names:

(a) sphagnetorum Vejdovský, 1878, as published in the binomen Pachydrilus sphagnetorum (specific name of the type species of Cognettia Nielsen & Christensen, 1959);

(b) chlorophilus Friend, 1913, as published in the binomen Chamaedrilus chlorophilus (specific name of the type species of Chamaedrilus Friend, 1913);

(c) bisetosus Bretscher, 1906, as published in the binomen Euenchytraeus bisetosus (specific name of the type species of Euenchytraeus Bretscher, 1906).

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith