ophidioid

from The Collaborative International Dictionary of English v.0.48

Ophidioid \O*phid"i*oid\, a. [Ophidion + -oid.] (Zool.)
   Of or pertaining to the {Ophidiidae}, a family of fishes
   which includes many slender species. -- n. One of the
   {Ophidiidae}.
   [1913 Webster]