from The Century Dictionary and Cyclopedia

  • In J. Müller's system of classification, a group of passerine birds having a simple bronchotracheal syrinx, as the tyrant-flycatchers: it corresponds to Clamatores or Oligomyodi and is contrasted with Tracheophonæ.
  • In Garrod and Forbes's arrangement, a division of Passeres, consisting of the family Tyrannidæ and the genus Rupicola of South America, together with the old-world Pittidæ, Philepittidæ, and Xenicidæ (or Acanthisittidæ): opposed to Tracheophones.


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