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Pteroceras

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Pteroceras \Pte*roc"e*ras\, n. [NL., fr. Gr. ? a wing + ? a
   horn.] (Zo["o]l.)
   A genus of large marine gastropods having the outer border of
   the lip divided into lobes; -- called also {scorpion shell}.
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