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Pars intermedia of the pituitary gland and integumentary colour changes in the garden lizard Calotes versicolor

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Summary

  1. 1.

    The effect of light and of colour of the background on the secretory activity of the pars intermedia of the garden lizard has been investigated.

  2. 2.

    Absence of light, as well as black illuminated background, produces increased acticity of the pars intermedia, proportional to the duration of the experiment.

  3. 3.

    Pale illuminated background has no effect on the secretory activity of the pars intermedia.

  4. 4.

    The hormone appears to be contained in an acidophilic colloid.

  5. 5.

    The pars intermedia is supplied by numerous branches from the marginal blood vessel.

  6. 6.

    The results have been discussed in the light of available information.

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Authors and Affiliations

  1. Department of Anatomy, Medical College, Trivandrum, India

    Shanta Nayar & K. R. Pandalai

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  1. Shanta Nayar
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  2. K. R. Pandalai
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Nayar, S., Pandalai, K.R. Pars intermedia of the pituitary gland and integumentary colour changes in the garden lizard Calotes versicolor . Z. Zellforsch. 58, 837–845 (1963). https://doi.org/10.1007/BF00320323

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  • DOI: https://doi.org/10.1007/BF00320323

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