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A hypothalamic channel-system in the inferior lobes of a trigger-fish (Rhinecanthus aculeatus, Balistidae)

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Summary

In the course of a general investigation of the optic system in some trigger-fishes, a hypothalamic, ventricular channel-system with pores, leading to the outside of the brain, has been discovered in the inferior lobes ofRhinecanthus aculeatus (Balistidae). A description of the morphological relations of the channel-system to the blood-vessel-supply and the cranium suggests that the organ-systems involved form a functional unit. The possibility of a hormone-producing system is discussed in the light of physiological and ecological aspects.

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Authors and Affiliations

  1. Zoological Institute, University of Basel, Rheinsprung 9, CH-4051, Basel, Switzerland

    M. Wullimann, W. Finck & D. G. Senn

Authors
  1. M. Wullimann
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  2. W. Finck
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  3. D. G. Senn
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Additional information

Acknowledgments. We would like to thank R. Dätwyler for technical assistance and S.M. Kelly for critical reading of the manuscript.

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Wullimann, M., Finck, W. & Senn, D.G. A hypothalamic channel-system in the inferior lobes of a trigger-fish (Rhinecanthus aculeatus, Balistidae). Experientia 40, 725–727 (1984). https://doi.org/10.1007/BF01949745

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  • DOI: https://doi.org/10.1007/BF01949745

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