Specter

n.
  1. Something preternaturally visible; an apparition; a ghost; a phantom.
    1. The tarsius.
    2. A stick insect.
    Specter bat (Zoöl.),
    any phyllostome bat.
    Specter candle (Zoöl.),
    a belemnite.
    Specter shrimp (Zoöl.),
    a skeleton shrimp. See under Skeleton.