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Issue: Vol. 4450 No. 1: 23 Jul. 2018
Type: Article
Published: 2018-07-23
DOI: 10.11646/zootaxa.4450.1.6
Page range: 91–107
Abstract views: 71
PDF downloaded: 4

Redescription of P. dorsipapillatus (von Marenzeller, 1893) and additional comments on the other species in the genus Pholoides Pruvot, 1895 (Polychaeta: Sigalionidae)

Universität Rostock, Institut für Biowissenschaften, Allgemeine und Spezielle Zoologie, Universitätsplatz 2, D-18055 Rostock, Germany.
Forschungsinstitut Senckenberg, Deutsches Zentrum für Marine Biodiversitätsforschung, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany.
Universität Rostock, Institut für Biowissenschaften, Allgemeine und Spezielle Zoologie, Universitätsplatz 2, D-18055 Rostock, Germany.
Annelida Atlantis-Meteor-complex CLSM COI DIVA 3 expedition H3a morphology Pholoides asperus Pholoides brasiliensis Pholoides sinepapillatus seamounts taxonomy 16S rDNA

Abstract

Pholoides Pruvot, 1895 is a species-poor genus of small scale-bearing polychaetes. Pholoides species are restricted to the continental shelf, living in sandy and muddy substrates, or on hard bottoms. During the DIVA 3 expedition grab samples were taken on four seamounts of the Meteor Seamount complex. One of the most common polychaetes in these samples was P. dorsipapillatus (von Marenzeller, 1893). Based on this material a comparison with the type material is undertaken leading to a re-description of P. dorsipapillatus. Diagnostic characters of all accepted Pholoides species were evaluated using light, scanning electron and confocal laser scanning microscopy. CLSM in particular proved to be an excellent tool for investigating these small species, and especially the type material. Blossom-like sensory buds, found at certain appendages of P. dorsipapillatus, could be an important diagnostic character to distinguish P. dorsipapillatus from other Pholoides species. Sequence information on three different gene fragments, the mitochondrial COI and 16S and the nuclear H3a, were obtained, and could serve for future phylogenetic and phylogeographic studies.

 

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