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Revisiting Asbestopluma (Asbestopluma) magnifica in the SW Atlantic: taxonomic amendments, new insights, and evidence for potential conspecificity with Asbestopluma (Asbestopluma) sarsensis

Published online by Cambridge University Press:  17 February 2025

Mariela Pavón Novarin*
Affiliation:
Laboratorio de Bentos, Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina Fondo para la Investigación Científica y Tecnológica (FONCYT), Buenos Aires, Argentina
Julio C. C. Fernandez
Affiliation:
Laboratório de Taxonomia de Porifera (TAXPO), Departamento de Invertebrados, Museu Nacional/Universidade Federal do Rio de Janeiro (MN/UFRJ), Rio de Janeiro, RJ, Brazil
Eduardo Hajdu
Affiliation:
Laboratório de Taxonomia de Porifera (TAXPO), Departamento de Invertebrados, Museu Nacional/Universidade Federal do Rio de Janeiro (MN/UFRJ), Rio de Janeiro, RJ, Brazil
Laura Schejter
Affiliation:
Laboratorio de Bentos, Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
*
Corresponding author: Mariela Pavón Novarin; Email: [email protected]

Abstract

In the present study we update the distributional, bathymetric ranges and taxonomic characters of the carnivorous sponge Asbestopluma (Asbestopluma) magnifica Lopez, Bravo & Hajdu, 2011 providing new records for Argentinian jurisdictional waters in the SW Atlantic Ocean, including the Marine Protected Area Namuncurá/Burdwood Bank. The shallowest bathymetric range is now changed to the upper bathyal (289 m depth). We also amend the original description after re-examination of type materials, when markedly different micrometric values were observed for their subtylostyles and acanthotylostrongyles. We noticed a remarkable similarity between Asbestopluma (Asbestopluma) sarsensis Goodwin, Berman, Downey & Hendry, 2017 and A. (A.) magnifica and we suspect they may be synonymous, but we refrain from taking a formal decision pending revision of all materials reported for the younger taxon or a genetic analysis.

Type
Research Article
Copyright
Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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