Experimental evidence for the accumulation of egg pigment in the brain cavities of Xenopus tadpoles


  • Dr. Leszek Kordylewski

    Corresponding author
    1. Department of Comparative Anatomy, Institue of Zoology, Jagiellonian University, Karasia 6, 30–060 Kraków, Poland
    • Department of Medicine, University of Chicago, Box 137, (Cardiology), 950 East 59th Street, Chicago, IL 60637
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The origin and fate of darkly pigmented clusters of cells that float freely in the brain cavities of the tadpoles of Xenopus laevis have been experimentally investigated. The results point to the conclusion that the clusters are the sites of egg pigment accumulation, which remain within the brain cavities or at its walls until metamorphosis.