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Redescription of Cloeosiphon aspergillus (de Quatrefages 1866) (Sipuncula: Aspidosiphonidae) and description of a new species from the southern Mexican Pacific

Published online by Cambridge University Press:  07 October 2025

Itzahí Silva-Morales  and
Luis F. Carrera-Parra Open the ORCID record for Luis F. Carrera-Parra [Opens in a new window]
Itzahí Silva-Morales
Affiliation:
Departamento de Sistemática y Ecología Acuática, El Colegio de la Frontera Sur, Chetumal, QR, México
Luis F. Carrera-Parra*
Affiliation:
Departamento de Sistemática y Ecología Acuática, El Colegio de la Frontera Sur, Chetumal, QR, México
*
Corresponding author: Luis F. Carrera-Parra; Email: lcarrera@ecosur.mx
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Abstract

A redescription of Cloeosiphon aspergillus is presented based on the type material and additional specimens from Madagascar, South Africa, and New Caledonia. Cloeosiphon aspergillus is characterized by its pineapple-shaped anal shield, bidentate hooks arranged in rings, and a continuous longitudinal muscle layer. Additionally, a new species, Cloeosiphon mexicanus sp. nov. is described from the southern Mexican Pacific. This new species differs from C. aspergillus by having an inconspicuous secondary tooth on posterior hooks and the absence of spherical units along the basal margin of the anal shield. Furthermore, a discussion on the synonyms of C. aspergillus is included. This study expands the taxonomic knowledge of the genus Cloeosiphon and highlights the importance of the detailed description for accurate species recognition.

Keywords

Indo-PacificMexicomorphologysipunculanstaxonomy

Information

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 105 , 2025 , e115
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom.

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Footnotes

This article was originally published with an incorrect author affiliation. This has now been updated.

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