Ovulum verrucosum

from The Collaborative International Dictionary of English v.0.48

Warty \Wart"y\, a.
   1. Having warts; full of warts; overgrow with warts; as, a
      warty leaf.
      [1913 Webster]

   2. Of the nature of warts; as, a warty excrescence.
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   {Warty egg} (Zool.), a marine univalve shell ({Ovulum
      verrucosum}), having the surface covered with wartlike
      elevations.
      [1913 Webster]