Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes
We describe Loimia davidi sp. nov. (Annelida, Terebellidae) from São Miguel Island (Azores). It resembles Loimia gigantea (Montagu, 1819) (English Channel) in having very large adults, the ventral shield shape and the types of capillary notochaetae (three), while differing in shape and colour of th...
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| Format: | Article |
| Language: | English |
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Consortium of European Natural History Museums
2022-08-01
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| Series: | European Journal of Taxonomy |
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| Online Access: | http://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1887 |
| _version_ | 1818016025477644288 |
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| author | Daniel Martin Maria Capa Alejandro Martínez Ana Cristina Costa |
| author_facet | Daniel Martin Maria Capa Alejandro Martínez Ana Cristina Costa |
| author_sort | Daniel Martin |
| collection | DOAJ |
| description |
We describe Loimia davidi sp. nov. (Annelida, Terebellidae) from São Miguel Island (Azores). It resembles Loimia gigantea (Montagu, 1819) (English Channel) in having very large adults, the ventral shield shape and the types of capillary notochaetae (three), while differing in shape and colour of the lateral lappets, branchiae length, the arrangement of segments, ventral shields, uncini and pygidial papillae. Large (> 30 cm long) and small (≈ 5 cm long) specimens of L. davidi sp. nov. show typically interspecific morphological differences while clustering in a single entity after species delimitation analyses of a cytochrome c oxidase I fragment. Therefore, we consider them to belong to a single species and discuss the taxonomic implications of size-dependent morphological differences. Within Loimia, we (1) suggest that large specimens may have been scarcely reported due to their rarity and collecting difficulty, while small specimens may have been reported either as ‘sp.’ or as the ‘cosmopolitan’ Loimia medusa (Savigny, 1822), (2) evaluate the size-related morphological disparity in all described species using a hypervolume analysis, (3) identify possible similar size-dependency in previously described species, (4) summarise the morphological information of all known species of Loimia; and (5) discuss on the four species reported in Europe.
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| first_indexed | 2024-04-14T07:06:09Z |
| format | Article |
| id | doaj.art-c3d19fd3c81b4e6b89256f189dbe6db4 |
| institution | Directory Open Access Journal |
| issn | 2118-9773 |
| language | English |
| last_indexed | 2024-04-14T07:06:09Z |
| publishDate | 2022-08-01 |
| publisher | Consortium of European Natural History Museums |
| record_format | Article |
| series | European Journal of Taxonomy |
| spelling | doaj.art-c3d19fd3c81b4e6b89256f189dbe6db42022-12-22T02:06:33ZengConsortium of European Natural History MuseumsEuropean Journal of Taxonomy2118-97732022-08-01833110.5852/ejt.2022.833.1887Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypesDaniel Martin0Maria Capa1Alejandro Martínez2Ana Cristina Costa3Centre d’Estudis Avançats de Blanes (CEAB-CSIC), Carrer d’accés a la Cala Sant Francesc 14, E17300, Blanes (Girona), Catalunya, SpainUniversitat de les Illes Balears, Departament de Biologia, Carretera de Valldemossa, km 7.5, E07122, Palma, Mallorca, Illes Balears, SpainMolecular Ecology Group (MEG), Water Research Institute (IRSA), National Research Council of Italy (CNR). Largo Tonolli 50, 28922 Pallanza, ItalyUniversidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia, Research Centre for Biodiversity and Genetic Resources (InBio/CIBIO), Ponta Delgada, São Miguel, Açores Arquipélago, Portugal We describe Loimia davidi sp. nov. (Annelida, Terebellidae) from São Miguel Island (Azores). It resembles Loimia gigantea (Montagu, 1819) (English Channel) in having very large adults, the ventral shield shape and the types of capillary notochaetae (three), while differing in shape and colour of the lateral lappets, branchiae length, the arrangement of segments, ventral shields, uncini and pygidial papillae. Large (> 30 cm long) and small (≈ 5 cm long) specimens of L. davidi sp. nov. show typically interspecific morphological differences while clustering in a single entity after species delimitation analyses of a cytochrome c oxidase I fragment. Therefore, we consider them to belong to a single species and discuss the taxonomic implications of size-dependent morphological differences. Within Loimia, we (1) suggest that large specimens may have been scarcely reported due to their rarity and collecting difficulty, while small specimens may have been reported either as ‘sp.’ or as the ‘cosmopolitan’ Loimia medusa (Savigny, 1822), (2) evaluate the size-related morphological disparity in all described species using a hypervolume analysis, (3) identify possible similar size-dependency in previously described species, (4) summarise the morphological information of all known species of Loimia; and (5) discuss on the four species reported in Europe. http://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1887LoimiaAzores ArchipelagoEuropean distributionintraspecific morphological variabilityshort molecular distance |
| spellingShingle | Daniel Martin Maria Capa Alejandro Martínez Ana Cristina Costa Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes European Journal of Taxonomy Loimia Azores Archipelago European distribution intraspecific morphological variability short molecular distance |
| title | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
| title_full | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
| title_fullStr | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
| title_full_unstemmed | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
| title_short | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
| title_sort | taxonomic implications of describing a new species of loimia annelida terebellidae with two size dependent morphotypes |
| topic | Loimia Azores Archipelago European distribution intraspecific morphological variability short molecular distance |
| url | http://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1887 |
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