Spiny starfish (Marthasterias glacialis)
|Researched by||Olwen Ager||Refereed by||Admin|
|Other common names||-||Synonyms||-|
Recorded distribution in Britain and IrelandMarthasterias glacialis is recorded from the southwest and west coast of England and the west coast of Scotland. It has only been recorded at one site on the east coast (St Abbs, Scotland) and has not been recorded in the eastern English Channel.
Global distributionMarthasterias glacialis is found from northern Norway to the Mediterranean and West Africa.
HabitatMarthasterias glacialis is found from extreme low water to about 200 m. It can be found in a variety of habitats from sheltered muddy sites to wave exposed rock faces.
- Up to 70 cm across.
- 5 narrow tapering arms
- Arms with 3 longitudinal rows of white, spines (usually purple tipped).
- Spines surrounded by cushions of pedicellariae.
- Pale grey to green tinged with purple, yellow or reddish in colour.
Additional informationSmall individuals of Marthasterias glacialis may be confused with Leptasterias mulleri (Northern starfish).
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Last Updated: 29/04/2008