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| | Brittle stars (Ophiuroidea) on Chek Jawa, Pulau Ubin, Singapore |
 | | The Ophiuroidea: brittle stars and baskets stars by Susan Hottenrott who delivers on her promise to bring you the very latest in ophiuroid technology, news and gossip, from basic fact sheets to the latest scientific findings, fabulous photos and lots of links. |
 | | Ophiuroidea on Biomedia of the Glasgow University Zoological Museum on the Biological Sciences, University of Paisley, Scotland website: a brief introduction. |
 | | Ophiuroidea from Bio 136 on the University of California, Santa Cruz website: labelled diagram of a brittle star including a cross-section through an arm. |
| www.wildsingapore.com /chekjawa/text/c601.htm (1001 words) |
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