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Trachearia

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Trachearia \Tra`che*a"ri*a\, n.pl. [NL.] (Zo["o]l.)
   A division of Arachnida including those that breathe only by
   means of trache[ae]. It includes the mites, ticks, false
   scorpions, and harvestmen.
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