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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

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
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
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.
Antarctica, deep sea, forcipulatacea, hydrothermal vent, North Pacific, pedicellariae
0024-4082
93-113
Mah, Christopher
29ca7c63-8ead-4b7a-8d8e-70ec9763ef2a
Linse, Katrin
74d7ddc0-74a1-4777-ac1d-3f39ae1935ad
Copley, Jonathan
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Marsh, Leigh
d8e1a926-092f-4cab-83f3-3345e2815086
Rogers, Alex
60b99721-b556-4805-ab34-deb808a8666c
Clague, David
89b6cccb-ccff-449f-8a0d-4b821e6a9598
Folttz, David
95f879a8-f7cd-40b4-9e86-e0644268c4ec
Mah, Christopher
29ca7c63-8ead-4b7a-8d8e-70ec9763ef2a
Linse, Katrin
74d7ddc0-74a1-4777-ac1d-3f39ae1935ad
Copley, Jonathan
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Marsh, Leigh
d8e1a926-092f-4cab-83f3-3345e2815086
Rogers, Alex
60b99721-b556-4805-ab34-deb808a8666c
Clague, David
89b6cccb-ccff-449f-8a0d-4b821e6a9598
Folttz, David
95f879a8-f7cd-40b4-9e86-e0644268c4ec

Mah, Christopher, Linse, Katrin, Copley, Jonathan, Marsh, Leigh, Rogers, Alex, Clague, David and Folttz, 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), pp. 93-113. (doi:10.1111/zoj.12229).

Record type: Article

Abstract

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.

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More information

Published date: May 2015
Keywords: Antarctica, deep sea, forcipulatacea, hydrothermal vent, North Pacific, pedicellariae
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 367861
URI: http://eprints.soton.ac.uk/id/eprint/367861
ISSN: 0024-4082
PURE UUID: 31322441-d16c-4c79-bb1e-8c49e3143a02

Catalogue record

Date deposited: 08 Aug 2014 08:31
Last modified: 18 Jul 2017 01:54

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Contributors

Author: Christopher Mah
Author: Katrin Linse
Author: Jonathan Copley
Author: Leigh Marsh
Author: Alex Rogers
Author: David Clague
Author: David Folttz

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