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

Details

Publication status:
Published
Author(s):
Authors: Mah, Christopher, Linse, Katrin, Copley, Jonathan, Marsh, Leigh, Rogers, Alex, Clague, David, Foltz, David

On this site: Katrin Linse
Date:
1 May, 2015
Journal/Source:
Zoological Journal of the Linnean Society / 174
Page(s):
93-113
Digital Object Identifier (DOI):
https://doi.org/10.1111/zoj.12229