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Spiny Starfish
Marthasterias glacialis
36.7493, -3.84735
Field Notes
Description:
Marthasterias glacialis is a large starfish up to 70 cm across, commonly 25-30 cm. It has 5 narrow tapering arms with 3 rows of longitudinal spines along each arm. The spines are white, usually with purple tips. spines are surrounded by specialised minute modified spines (pedicellariae), which are used for protection and to gather food. Marthasterias glacialis can be dirty brown to pale greyish green in colour with purple tips to the arms.
Habitat:
Marthasterias 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.
Notes:
Photographed while I was snorkeling at the beach of Maro, Málaga.
Reference Links:
EOL: Marthasterias glacialis
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Photographed
PublishedNovember 29, 2011
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