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brittle
stars text index
| photo index
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| Phylum Echinodermata > Class Stellaroida > Subclass Ophiuroidea |
| Flat
armed brittle star awaiting identification* updated Aug 10 Where seen? This agile but well camouflaged brittle star is sometimes commonly encountered on our Northern shores, among seagrasses as well as on sand and silty sand. Sometimes large numbers may be seen. It is more active at night and can move about rapidly among seagrasses and over sand. Features: Disk diameter less than 1cm, arms about 5cm long. Central disk flat and smooth, some are circular, others have a distinct petal-like shape with scalloped edges. Arms wide and flattened, with tapered pointed tips. Spines short and flattened, along the sides of the arms. Long tapered tube feet emerge from the arms. Colours usually match the sand, often with a pattern of bars along the length of the arms. Usually brown, beige or greenish. |
 Changi, Jun 05 |
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 Underside. |
 Upperside, some with scalloped edges. |
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 Underside of arm. |
 Upperside of arm. |
Flat armed brittle stars on Singapore shores
 Chek Jawa, Jul 05 |
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 Chek Jawa, Sep 10 |
 Underside. |
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 East Coast, Jun 06 |
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 Chek Jawa, Aug 07 |
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more photos of flat armed brittle stars on Singapore shores
part 1 | part 2
*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display
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