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An easy method to demonstrate epidermal sensory organs is described. With the dye Daspei, sensory cells as well as their nerves are visible in the fluorescence microscope. Actin filaments in pore cells and sensory cells are demonstrated with rhodamine‐labelled phalloidin, and the distribution of...
The gastro‐intestinal tract of Polypterus senegalus was investigated by means of electron microscopy and immunohistochemistry. Cilia‐bearing cells can be observed over the whole length of the intestine. All enterocytes along the intestinal tract are characterized by apical pinocytotic vesicles....
The structure and development of the paired eyes of the larva of Kronborgia isopodicola were studied by electron microscopy. Each ocellus, located anterolateral to the brain, is of the inverse rhabdomeric type. A supportive cell contains 10–12 rows of concentrically arranged crystalline plates...
The fine structure of the spermatozoa and spermatophores of the zuwai crab, Chionoecetes opilio, was examined electron microscopically. The spermatophores embedded in the secretory droplets within the vasa deferentia showed a spherical structure with an extremely wrinkled envelope and contained...
Sperm tail axonemes from three insect species, representing the three apterygote orders Diplura, Archeognatha and Zygentoma, have been examined by high resolution electron microscopy. The samples were fixed in a mixture of glutaraldehyde and tannic acid followed by uranyl acetate post‐fixation...
Improved structural and functional interpretations regarding the dermal skeleton of Paleozoic lungfishes (Dipnoi) can be derived from a direct comparison of Recent and fossil tissues. In particular, skin from the snout of adult Australian lungfish (Neoceratodus forsteri) contains horizontal...
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