Unrolling the Systematics of a Southeastern Pacific Chiton

The species <i>Chiton echinatus</i> was first described by Barmes in 1824. Subsequently, it has been allocated to several widely distributed genera (e.g., <i>Acanthopleura</i>, <i>Enoplochiton</i>, <i>Mesotomura</i>) within the subfamily Acanthopleurin...

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Main Authors: Christian M. Ibáñez, Boris Sirenko
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Taxonomy
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Online Access:https://www.mdpi.com/2673-6500/4/4/45
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author Christian M. Ibáñez
Boris Sirenko
author_facet Christian M. Ibáñez
Boris Sirenko
author_sort Christian M. Ibáñez
collection DOAJ
description The species <i>Chiton echinatus</i> was first described by Barmes in 1824. Subsequently, it has been allocated to several widely distributed genera (e.g., <i>Acanthopleura</i>, <i>Enoplochiton</i>, <i>Mesotomura</i>) within the subfamily Acanthopleurinae. In order to resolve this species’ taxonomic uncertainty, specimens were collected throughout its entire distribution (i.e. from Peru and Chile) and subjected to a series of morphological and phylogenetic analyses. Scanning electron microscopy was used to improve this species’ morphological description, whereas publicly available sequences were used to infer its phylogenetic position. Morphological and phylogenetic analyses suggest that this species merits its own genus, endemic to the Southeastern Pacific. Of the aforementioned genera, <i>Mesotomura</i> appears to be the most appropriate designation. Therefore, it is proposed that the name <i>Mesotomura echinata</i> be restored, and the range of this species be extended to 39° S.
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spelling doaj-art-c928c344546d4582bfaba9cbf6d9fd202024-12-27T14:55:55ZengMDPI AGTaxonomy2673-65002024-12-014485086110.3390/taxonomy4040045Unrolling the Systematics of a Southeastern Pacific ChitonChristian M. Ibáñez0Boris Sirenko1Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago 8370251, ChileZoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, RussiaThe species <i>Chiton echinatus</i> was first described by Barmes in 1824. Subsequently, it has been allocated to several widely distributed genera (e.g., <i>Acanthopleura</i>, <i>Enoplochiton</i>, <i>Mesotomura</i>) within the subfamily Acanthopleurinae. In order to resolve this species’ taxonomic uncertainty, specimens were collected throughout its entire distribution (i.e. from Peru and Chile) and subjected to a series of morphological and phylogenetic analyses. Scanning electron microscopy was used to improve this species’ morphological description, whereas publicly available sequences were used to infer its phylogenetic position. Morphological and phylogenetic analyses suggest that this species merits its own genus, endemic to the Southeastern Pacific. Of the aforementioned genera, <i>Mesotomura</i> appears to be the most appropriate designation. Therefore, it is proposed that the name <i>Mesotomura echinata</i> be restored, and the range of this species be extended to 39° S.https://www.mdpi.com/2673-6500/4/4/45chitonsphylogenytaxonomy<i>Mesotomura echinata</i>
spellingShingle Christian M. Ibáñez
Boris Sirenko
Unrolling the Systematics of a Southeastern Pacific Chiton
Taxonomy
chitons
phylogeny
taxonomy
<i>Mesotomura echinata</i>
title Unrolling the Systematics of a Southeastern Pacific Chiton
title_full Unrolling the Systematics of a Southeastern Pacific Chiton
title_fullStr Unrolling the Systematics of a Southeastern Pacific Chiton
title_full_unstemmed Unrolling the Systematics of a Southeastern Pacific Chiton
title_short Unrolling the Systematics of a Southeastern Pacific Chiton
title_sort unrolling the systematics of a southeastern pacific chiton
topic chitons
phylogeny
taxonomy
<i>Mesotomura echinata</i>
url https://www.mdpi.com/2673-6500/4/4/45
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