Looping snail

from The Collaborative International Dictionary of English v.0.48

Looping \Loop"ing\, p. pr. & vb. n.
   of {Loop}.
   [1913 Webster]

   {Looping snail} (Zool.), any species of land snail of the
      genus {Truncatella}; -- so called because it creeps like
      the measuring worms.
      [1913 Webster]