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Plectaster
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Plectaster decanus (Muller & Troschel 1843)
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Mosaic seastar - Plectaster decanus
cc-by-nc-sa
John Turnbull
Flickr Group
A particularly colourful variant with a coated ascidian and a gorgonian (or is it a bryozoan?) in the background
Mosaic seastar - Plectaster decanus
cc-by-nc-sa
John Turnbull
Flickr Group
Close up of a mosaic sea star. The papillae were out due to the strong surge currents at the Monument; they are used for respiration (extracting oxygen from the water and releasing CO2)
Mosaic seastar - Plectaster decanus
cc-by-nc-sa
John Turnbull
Flickr Group
Another one of these common sea stars - this one had every papilla out!