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Vrijenhoekia balaenophila, a new hesionid polychaete from a whale fall off California |
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| Authors: | FREDRIK PLEIJEL GREG W. ROUSE CHRISTINE RUTA HELENA WIKLUND ARNE NYGREN |
| Affiliation: | Department of Marine Ecology, TjärnöMarine Biological Laboratory, University of Göteborg, SE-452 96 Strömstad, Sweden, and Muséum national d'Histoire naturelle, Département Systématique et Evolution, CNRS UMR 7138, 'Systématique, Adaptation, Evolution', 43, rue Cuvier, 75231 Paris Cedex 05, France; Scripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, CA 92093-0202, USA; Muséum national d'Histoire naturelle, Département Systématique et Evolution, CNRS UMR 7138, 'Systématique, Adaptation, Evolution', 43, rue Cuvier, 75231 Paris Cedex 05, France; University of Göteborg, Department of Zoologicy, Box 463, SE-405 30 Göteborg, Sweden |
| Abstract: | Vrijenhoekia balaenophila gen. nov., sp. nov. (Polychaeta, Hesionidae) is described from a whale carcass at near 3000 m depth in Monterey Canyon off the coast of California. The phylogenetic relationships of V. balaenophila are assessed in a parsimony analysis of morphological data together with nucleotide data from 28S rDNA, 16S rDNA and cytochrome oxidase I genes. Within the hesionids V. balaenophila belongs to Psamathini, where it is the sister group to Sirsoe . Among psamathins it is morphologically distinguished by having six glandular lip pads around the mouth opening, papilla-shaped neuropodial lobes on segment 3, extreme length of the dorsal cirri, and by a characteristic growth pattern in which the maximum number of segments is already formed in subadults, and further growth takes place through size increase of the segments. © 2008 The Linnean Society of London, Zoological Journal of the Linnean Society , 2008, 152 , 625–634. |
| Keywords: | Annelida new genus new species systematics |