ocypodian


From The Collaborative International Dictionary of English v.0.48:

Ocypodian \O`cy*po"di*an\, n. [Gr. 'wky`s swift + poy`s, podo`s,
   foot.] (Zool.)
   One of a tribe of crabs which live in holes in the sand along
   the seashore, and run very rapidly, -- whence the name.
   [1913 Webster]
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