brittle star

from WordNet (r) 3.0 (2006)

brittle star
    n 1: an animal resembling a starfish with fragile whiplike arms
         radiating from a small central disc [syn: {brittle star},
         {brittle-star}, {serpent star}]

from The Collaborative International Dictionary of English v.0.48

Brittle star \Brit"tle star`\ (br[i^]t"t'l st[aum]r`), (Zool.)
   Any species of ophiuran starfishes. See {Ophiuroidea}.
   [1913 Webster]

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