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Magnets in guitarfish vestibular receptors

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Summary

Black magnetic particles are intermixed with white crystalline otoconia in the inner ear gravity receptors of a saltwater ray. Their size and composition suggest that they are multidomains of magnetite-ilmenite.

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Author notes

  1. J. Vilches-Troya & A. Campos-Munõz

    Present address: Department of Histology and Pathology, Faculty of Medicine and Department of Pathology, San Rafael Hospital, Cadiz, Spain

Authors and Affiliations

  1. Department of Otolaryngology, Division of Vestibular Disorders, University of Pittsburgh School of Medicine, Eye and Ear Hospital, Pittsburgh, Pennsylvania, USA

    D. P. O'Leary, J. Vilches-Troya, R. F. Dunn & A. Campos-Munõz

Authors
  1. D. P. O'Leary
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  2. J. Vilches-Troya
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  3. R. F. Dunn
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  4. A. Campos-Munõz
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Additional information

Acknowledgments. We thank Dennis Fulgoni for technical assistance and the Instituto de Investigaciones Pesqueras, Cadiz, Spain, for assistance in obtaining guitarfish. This work was support in part by grant NS 12494, from the National Institute of Communicative Disorders and Stroke.

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O'Leary, D.P., Vilches-Troya, J., Dunn, R.F. et al. Magnets in guitarfish vestibular receptors. Experientia 37, 86–88 (1981). https://doi.org/10.1007/BF01965587

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