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

Pentail \Pen"tail`\, n. (Zo["o]l.)
   A peculiar insectivore ({Ptilocercus Lowii}) of Borneo; -- so
   called from its very long, quill-shaped tail, which is scaly
   at the base and plumose at the tip.