aplacophoran

from WordNet (r) 3.0 (2006)

aplacophoran
    n 1: deep-water wormlike mollusks lacking calcareous plates on
         the body but having fine slimy spicules on the covering
         mantle [syn: {solenogaster}, {aplacophoran}]

from The Collaborative International Dictionary of English v.0.48

aplacophoran \aplacophoran\ n.
   1. one of the {aplacophora}; a deep-water wormlike mollusk
      lacking calcareous plates on the body but having fine limy
      spicules on the covering mantle.

   Syn: solenogaster
        [WordNet 1.5]