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Articles
Published: 2011-04-12

On the identity of Spio filicornis (O.F. Müller, 1776)—with the designation of a neotype, and the description of two new species from the North East Atlantic Ocean based on morphological and genetic studies

Forschungsinstitut Senckenberg, Deutsches Zentrum für Marine Biodiversitätsforschung, Biozentrum Grindel, Martin–Luther–King–Platz 3, 20146 Hamburg, Germany
Universität Rostock, Institut für Biowissenschaften, Allgemeine und Spezielle Zoologie, Universitätsplatz 2, D-18055 Rostock, Germany
Universität Rostock, Institut für Biowissenschaften, Tierphysiologie, Albert-Einstein-Straße 3, D-18059 Rostock, Germany
Annelida Arctic Baltic Sea COI dorsal ciliated organs nuchal organs morphology North Sea Spio arndti sp. nov. Spio symphyta sp. nov. subepidermal glands taxonomy 16S rDNA 18S rDNA

Abstract

The aim of this study is to solve taxonomic problems pertaining to Spio filicornis (O.F. Müller, 1776). The original description by O. F. Müller was very brief and type material was not deposited. Based on the literature the confusion about the identity of the species has been tremendous; e.g., it was only recently realized that at least two different species from the North and Baltic Seas could be identified as S. filicornis (Bick et al. 2010). The present study is based on material collected by the authors in 2009 at the type locality in Iluilârssuk, near Paamiut, SW Greenland. Spio filicornis is redescribed in detail and illustrated comprehensively. A neotype has been designated and deposited in the collection of Rostock University. Species formerly referred to as S. cf. filicornis from the North and Baltic Seas (Bick et al. 2010) are formally described as two new species, Spio arndti sp. nov., and S. symphyta sp. nov. The morphological diagnostic characters within Spio are discussed. Information on three molecular markers (16S rDNA, 18S rDNA, cytochrome c oxidase subunit I) is also provided. The genetic divergence between the three Spio species corroborates the taxonomic discrimination.

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How to Cite

MEIßNER, K., BICK, A., & BASTROP, R. (2011). On the identity of <em>Spio filicornis </em>(O.F. Müller, 1776)—with the designation of a neotype, and the description of two new species from the North East Atlantic Ocean based on morphological and genetic studies. Zootaxa, 2815(1), 1–27. https://doi.org/10.11646/zootaxa.2815.1.1