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Quarterly Journal of Microscopical Science, Vol s3-93, 31-45, Copyright © 1952 by Company of Biologists
1 Zoology Department, University of Manchester; Zoology Department, University College of N. Wales, Bangor
1. The histology of the mid-gut of Dactylochelifer latreilli (Leach) is described. The mid-gut is divided into two regions: an anterior diverticular region consisting of digestive cells, excretory cells, and small basal cells of unknown function, and a narrow, posterior post-diverticular region possessing a syncytial epithelium. The whole mid-gut is invested in a layer of peritoneal cells.
2. The changes in the staining reaction of protein globules undergoing intracellular digestion are followed.
3. The development of excretory cells is described. The function of the postdiverticular mid-gut in the excretory process is outlined.
4. Storage of fatty material and glycogen occurs in the digestive cells and in the peritoneal epithelium.
5. The structure and functions of the false scorpion mid-gut are compared with those of other Arachnids.