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Description of a new family, new genus and two new species of deep-sea Forcipulatacea (Asteroidea), including the first known sea star from hydrothermal vent habitats

Mah, Christopher; Linse, Katrin; Copley, Jonathan; Marsh, Leigh; Rogers, Alex; Clague, David; Foltz, David. 2015 Description of a new family, new genus and two new species of deep-sea Forcipulatacea (Asteroidea), including the first known sea star from hydrothermal vent habitats. Zoological Journal of the Linnean Society, 174 (1). 93-113. 10.1111/zoj.12229

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Abstract/Summary

Based on a phylogenetic analysis of undescribed taxa within the Forcipulatacea, a new family of deep-sea forcipulatacean starfishes, Paulasteriidae fam. nov., is described from deep-sea settings. Paulasterias tyleri gen. et sp. nov. was observed at recently documented hydrothermal vents on the East Scotia Ridge, Southern Ocean. A second species, Paulasterias mcclaini gen. et sp. nov. was observed in deep-sea settings in the North Pacific, more distant from hydrothermal vents. Both species are multi-armed (with between six and eight arms), with a fleshy body wall, and a poorly developed or absent adoral carina. Here, we include discussions of pedicellariae morphology, feeding biology, and classification

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1111/zoj.12229
Programmes: BAS Programmes > Polar Science for Planet Earth (2009 - ) > Environmental Change and Evolution
ISSN: 0024-4082
Additional Keywords: Antarctica, deep sea, forcipulatacea, hydrothermal vent, North Pacific, pedicellariae
NORA Subject Terms: Marine Sciences
Date made live: 19 May 2015 10:13 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/508030

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