The anatomy of the resonating mechanism in howling monkeys

Miguel A. Schon

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


The howler monkeys are notorious for the low pitched but high volume howls emitted in particular circumstances. The mechanism for achieving such high voice intensities is still little understood. The present study is based on the dissection of the hyolaryngeal apparatus in 6 Alouatta seniculus, supplemented by the observation of these organs in whole block serial sections (30-40 pm) obtained from 3 A.seniculus and 6 A. caraya.

Original languageEnglish (US)
Pages (from-to)117-132
Number of pages16
JournalFolia Primatologica
Issue number1-2
StatePublished - 1971


  • Alouatta
  • Hyoidean sac
  • Hyolaryngeal apparatus
  • Intensification of voice volume
  • Lateral air sacs
  • Pharyngolaryngeal sacs

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology


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