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Iheyaspira bathycodon new species (Vetigastropoda: Trochoidea: Turbinidae: Skeneinae) from the Von Damm Vent Field, Mid-Cayman Spreading Centre, Caribbean

Nye, Verity; Copley, Jon; Linse, Katrin; Plouviez, Sophie. 2013 Iheyaspira bathycodon new species (Vetigastropoda: Trochoidea: Turbinidae: Skeneinae) from the Von Damm Vent Field, Mid-Cayman Spreading Centre, Caribbean. Journal of the Marine Biological Association of the United Kingdom, 93 (4). 1017-1024. 10.1017/S0025315412000823

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Abstract/Summary

Iheyaspira bathycodon sp. nov. is described from the Von Damm Vent Field on the world's deepest spreading centre, the Mid-Cayman Spreading Centre (MCSC), Caribbean, at 2300 m depth. The new species is defined and illustrated from 11 specimens, with brief notes on habitat and known distribution. Molecular phylogenetic data from partial COI mDNA, 16S rDNA and nuclear 18S rDNA regions are used to analyse the species’ phylogenetic position and its morphology is compared with previously described skeneid and vent taxa. The new species is distinguished from the most closely allied vent species, Iheyaspira lequios Okutani, Sasaki & Tsuchida, 2000 by morphological differences in radula diagnosis and appendage structure of the head-foot. Iheyaspira bathycodon sp. nov. is the tenth turbinid to be described from a hydrothermal-vent environment and the second species to be named from recently discovered hydrothermal vents on the MCSC. Determining the faunal composition of assemblages at the vent fields of the MCSC will help to elucidate the vent biogeography of the region.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1017/S0025315412000823
Programmes: BAS Programmes > Polar Science for Planet Earth (2009 - ) > Environmental Change and Evolution
ISSN: 0025-3154
Additional Information. Not used in RCUK Gateway to Research.: This article has been accepted for publication and will appear in a revised form in the Journal of the Marine Biological Association of the United Kingdom, published by Cambridge University Press. Copyright Marine Biological Association of the United Kingdom 2013.
Additional Keywords: Gastropoda, Vetigastropoda, Trochoidea, Turbinidae, Skeneinae Hydrothermal vents
Date made live: 12 Sep 2012 17:52
URI: http://nora.nerc.ac.uk/id/eprint/19546

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