Upsidedown
brittle star
Ophiothrix sp.
Family Ophiotrichidae
updated
Oct 10
Where
seen? This sea star with an odd preference to be upside
down is sometimes seen among seaweeds and seagrasses on our Northern
shores. Especially active at night.
Features: Disk diameter less than
1cm, arms about 5cm long. Disk thick, petal-shaped. Arms long with
blunt cylindrical spines held like a bottle brush. Often seen upside
down and if turned the right side up will turn upside down again.
This may be an adaptation to feeding on substances on the water surface.
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Pulau Sekudu, Jun 05
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Upperside.
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Underside.
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Upsidedown
brittle stars on Singapore shores

Pulau Sekudu, Apr 06
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more photos of upsidedown
brittle stars on Singapore shores
part 1 | part
2
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