Reassessing North Eastern Atlantic-Mediterranean species of Trapania (Mollusca, Nudibranchia)
EntityUAM. Departamento de Biología
10.1111/zsc.12536Zoologica Scripta 51.4 (2022): 447-459
ISSN0300-3256 (print); 1463-6409 (online)
SubjectsGoniodorididae; morphotypes; synonymy; systematics; Zoología
Rights© 2022 The Authors
Esta obra está bajo una Licencia Creative Commons Atribución 4.0 Internacional.
Trapania is the second largest genus belonging to the family Goniodorididae, of which most of the species are reported from Indo-Pacific waters. To date, there are nine species of Trapania distributed along the temperate coasts of the East Atlantic Ocean and Mediterranean Sea: Trapania fusca, Trapania graeffei, Trapania hispalensis, Trapania lineata, Trapania maculata, Trapania orteai, Trapania pallida, Trapania sanctipetrensis and Trapania tartanella. However, the validity of some of these species has been problematic due to uncertain taxonomic characteristics used for the differentiation of the species. The genus Trapania has a very uniformly external morphology and very similar internal anatomy. As a consequence, the features most commonly used to differentiate species have been the colour pattern of the body and the morphology of the radula. In the present study, we perform a morphological and molecular revision of the East Atlantic-Mediterranean species of the genus Trapania. Morphological analyses include dissections and scanning electron microscope photographs of radulae, labial cuticles and penises. Molecular work includes phylogenetic, species delimitation and haplotype network analyses. Our results bring doubt on the taxonomic characteristics used so far, suggesting that the richness of the North Eastern Atlantic-Mediterranean species has been overestimated. Trapania hispalensis, T. lineata and T. pallida are shown to belong to the same taxa, with Trapania lineata as senior synonym
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Google Scholar:Paz Sedano, Sofía - Martín Álvarez, José Francisco - Gosliner, Terrence M. - Pola Pérez, Marta
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