Source : Webster's Revised Unabridged Dictionary (1913)

Stump-tailed \Stump"-tailed`\, a.
   Having a short, thick tail.

   {Stump-tailed lizard} (Zo["o]l.), a singular Australian
      scincoid lizard ({Trachydosaurus rugosus}) having a short,
      thick tail resembling its head in form; -- called also
      {sleeping lizard}.