Atomic force microscope observations of otoconia in the newt

Richard Hallworth, Michael L. Wiederhold, John B. Campbell, Peter S. Steyger

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Calcitic and aragonitic otoconia from the Japanese red-bellied newt, Cynops pyrrhogaster, were examined using an atomic force microscope. The surface structure of both otoconial polymorphs consisted of arrays of elements approximately 50 nm in diameter. Elements were generally round and were separated by shallow depressions of no more than 20 nm. The elements are suggested to be single crystals of calcium carbonate. The relationship of these observations to theories of otoconial genesis is discussed.

Original languageEnglish (US)
Pages (from-to)115-121
Number of pages7
JournalHearing Research
Issue number1-2
StatePublished - May 1995
Externally publishedYes


  • Atomic force microscope
  • Biomineralization
  • Otoconia

ASJC Scopus subject areas

  • Sensory Systems


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