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Título: | Taxonomic implications of describing a new species of Loimia (Annelida, Terebellidae) with two size-dependent morphotypes |
Autor: | Martin, Daniel CSIC ORCID CVN ; Capa, María; Martínez, Alejandro; Costa, Ana Cristina | Palabras clave: | Intraspecific genetic distance Integrative taxonomy Loimia Açores Archipelago North East Atlantic Intraspecific morphological variability |
Fecha de publicación: | 2022 | Editor: | Consortium of European Natural History Museums | Citación: | European Journal of Taxonomy 833 : 60-96 (2022) | Resumen: | We describe Loimia davidi sp. nov. (Annelida, Terebellidae) from São Miguel Island (Açores). 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 the four species reported in Europe. | Descripción: | Este artículo contiene 37 páginas, 10 figuras, 4 tablas. | Versión del editor: | https://doi.org/10.5852/ejt.2022.833.1887 | URI: | http://hdl.handle.net/10261/275821 | ISSN: | 2118-9773 | E-ISSN: | 2118-9773 |
Aparece en las colecciones: | (CEAB) Artículos |
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