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Morphological and molecular characterization of a new species of Atlantic stalked barnacle (Scalpelliformes: Pollicipedidae) from the Cape Verde Islands

Published online by Cambridge University Press:  04 March 2011

Javier Quinteiro ,
Jorge Rodríguez-Castro ,
Pedro López ,
Luis F. López-Jurado ,
Nieves González-Henríquez  and
Manuel Rey-Méndez
Javier Quinteiro*
Affiliation:
Laboratorio de Sistemática Molecular (Unidad Asociada CSIC-IIM), Departamento Bioquímica e Bioloxía Molecular. CIBUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela (A Coruña), Spain
Jorge Rodríguez-Castro
Affiliation:
Laboratorio de Sistemática Molecular (Unidad Asociada CSIC-IIM), Departamento Bioquímica e Bioloxía Molecular. CIBUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela (A Coruña), Spain
Pedro López
Affiliation:
Proyecto Naturalia. Boa Vista, Cape Verde Islands
Luis F. López-Jurado
Affiliation:
Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, Spain
Nieves González-Henríquez
Affiliation:
Instituto Canario de Ciencias Marinas, Gobierno de Canarias, Apartado 56, 35200 Telde, Gran Canaria, Spain
Manuel Rey-Méndez
Affiliation:
Laboratorio de Sistemática Molecular (Unidad Asociada CSIC-IIM), Departamento Bioquímica e Bioloxía Molecular. CIBUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela (A Coruña), Spain
*
Correspondence should be addressed to:J. Quinteiro, Laboratorio de Sistemática Molecular (Unidad Asociada CSIC-IIM), Departamento Bioquímica e Bioloxía Molecular, CIBUS Universidade de Santiago de Compostela, 15782 Santiago de Compostela (A Coruña), Spain email: javier.quinteiro@usc.es
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Abstract

The taxonomy of pedunculate cirripedes belonging to the genus Pollicipes has essentially remained unchanged since Charles Darwin described them in his exhaustive work on the Cirripedia. This genus includes three species of stalked barnacles: Pollicipes pollicipes in the north-eastern Atlantic, P. polymerus in the north-eastern Pacific and P. elegans in the central-eastern Pacific. However, a population genetics analysis of P. pollicipes suggested the presence of a putative cryptic species collected from the Cape Verde Islands in the central-eastern Atlantic. This study examines the morphology of these genetically divergent specimens and compares them with that of representative Atlantic samples of the biogeographically closely related P. pollicipes and with the poorly described P. elegans. Molecular data, including mitochondrial COX1 and nuclear ribosomal interspaces sequences, were obtained for all species of the genus Pollicipes. Morphological distinctiveness, diagnostic characters, congruent divergence level and monophyletic clustering, at both nuclear and mitochondrial loci support the taxonomic status of this new species, Pollicipes darwini.

Keywords

COX1 geneinterspaces sequencesmolecular taxonomymorphological descriptionPollicipes
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 91 , Issue 7 , November 2011 , pp. 1537 - 1545
Copyright
Copyright © Marine Biological Association of the United Kingdom 2011

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