Comparative Morphology of Fish Olfactory Epithelium : IX. Tetraodontiformes

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概要

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• The olfactory organs of 11 species of the Tetraodontiformes were studied by transmission and scanning electron microscopy. In triacanthus brevirostris (Triacanthidae), the olfactory chamber contains an oval-shaped olfactory rosette. In navodon modestus, N. tessellatus and Stephanolepsis cirrhifer (Balistidae), the olfactory organ has one longitudinally oriented lamella and in Rudarius ercodes (Balistidae), the olfactory organ lacks totally lamellate structures. In the above 5 species, the sensory epithelium which is covered with moderately dense cilia of type 1 ciliated cells and contains many type 2 ciliated cells and microvillous cells, is distributed continuously on the faces of the lamella or on the flat floor of the olfactory chamber. In Lactoria diaphanus and Ostracion tuberculatus (Ostraciontidae), the olfactory organ has no lamellate structures. Type 1 and 2 ciliated cells and microvillous cells are densely scattered on the inner wall of the U-shaped olfactory chamber. In 4 species of Fugu (Tetraodontidae), the olfactory chamber consists of an arch-like elevation with two openings. Several lamellae come down from the inner wall of the arch-like elevation. The sensory epithelium is arranged into many islets separated by the indifferent epithelium. The sensory islets are densely covered with microvilli arising from the supporting cells. Type 2 ciliated cells and microvillous cells are sparsely present but type 1 ciliated cells are tatally absent in the sensory islets. Rod cells are present in all species of the Tetraodontiformes so far examined.

• 社団法人日本動物学会の論文
• 1979-09-25

著者

• UEDA KAZUO

  Zoological Institute, Faculty of Science, University of Tokyo

• Yamamoto Masamichi

  Ushimado Marine Laboratory Faculty Of Science Okayama University

• Ueda Kazuo

  Zoological Institute Faculty Of Science Tokyo University

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