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Quarterly Journal of Microscopical Science, Vol s3-98, 291-299, Copyright © 1957 by Company of Biologists

The Cytoplasmic Inclusions of the Neurones of Patella vulgata

JOHN T. Y. CHOU 1

1 Cytological Laboratory, Department of Zoology, University Museum, Oxford

1. The cytoplasmic inclusions of the neurones of the pedal ganglia are filamentous mitochondria and lipid globules.

2. Two kinds of lipid globules occur. One is yellow, the other devoid of natural colour.

3. The yellow globules owe their colour to the presence of carotenoid. They are chemically complex, since they contain not only cerebroside and phospholipid, but also a certain amount of amino-acids (presumably as protein) and carbohydrate.

4. The other globules consist almost entirely of cerebroside and phospholipid.

5. Four kinds of neurones are present, of which three are unipolar and one bipolar. The three kinds of unipolar neurones are easily distinguishable by their morphological characters and by their differing content of lipid globules.






© The Company of Biologists Ltd 1957