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Issue: Vol. 4377 No. 4: 5 Feb. 2018
Type: Article
Published: 2018-02-05
DOI: 10.11646/zootaxa.4377.4.1
Page range: 451–489
Abstract views: 297
PDF downloaded: 217

An inordinate fondness for Osedax (Siboglinidae: Annelida): Fourteen new species of bone worms from California

Scripps Institution of Oceanography, UC San Diego, La Jolla CA, 92093-0202 USA
Department of Biology, Occidental College, Los Angeles, CA, USA
Monterey Bay Aquarium Research Institute, Moss Landing, CA, USA
Monterey Bay Aquarium Research Institute, Moss Landing, CA, USA
Siboglinidae Annelida

Abstract

We incorporate DNA sequences from a comprehensive sampling of taxa to provide an updated phylogeny of Osedax and discuss the remarkable diversity of this clade of siboglinids. We formally describe 14 new species of Osedax from Monterey Bay, California, USA, raising the total number of properly named Osedax species to 25. These new species had formerly been recognized by informal names in various publications, and on GenBank. The descriptions document the occurrence of dwarf males in five of the new species. The distribution for the 19 species of Osedax known to occur in Monterey Bay across depths from 385 to 2898 meters and various bone substrates is documented. The exploitation of extant bird and marine turtle bones by Osedax is reported for the first time.

 

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