Cells with microvillous borders in the cerebral ganglion of Leptodora kindtii focke (Crustacea)

Summary Groups of large cells in the cerebral ganglion of Leptodora kindtii join in intricate patterns to enclose lacunar spaces. The cell surfaces bordering on these lacunae are covered by long, densely packed microvilli that all but fill the spaces. Near their brush borders the cells are joined by adhesion plates; for the rest they are separated from each other by glial septa. The possible significance of these structures is discussed.Dedicated to an inspiring teacher and loyal friend, Prof. F. Wassermann on the occasion of his 80th birthday, August 13, 1964.Supported by Grant No. NB-02145 from the United States Public Health Service. The expert assistance of Mrs. Cynthia Jones, Mrs. Sarah Wurzelmann, and Mr. Stanley Brown is gratefully acknowledged.