Fig. 8. Longitudinal section through the gill region. G., gills. B., blood. O., ovary. N., nervous network. ×40.
Fig. 9. Cross section of alimentary canal. A., wall of alimentary canal. ×40.
Fig. 10. Intestinal epithelium, modified ciliated columnar. ×400.
Fig. 11. Epithelium of the gill, modified ciliated columnar. ×400.
Fig. 12. Nervous tissue. ×400.
Fig. 13. Surface epithelium of proboscis, modified ciliated columnar. ×400.
Fig. 14. Surface epithelium of collar, modified ciliated columnar. ×400.
Fig. 15. Surface epithelium of trunk, modified ciliated columnar. ×400.
Fig. 16. Cells of testis. ×400.
Fig. 17. Ovary. ×400.