本邦産無毬腎硬骨魚

概要

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1. In addition to the five Japanese teleosts already reported by Ogawa ('57), three more teleosts, Pterophryne hystrio, Ichthyocampus nox, and Syngnathus schlegelli were revealed to have no glomerulus in the kidney structures of these fishes have been described, in comparison with those of other aglomerular teleosts. 2. In these teleosts, the nephron is composed of only both the collecting duct and the second part of the proximal convoluted segment, the first part and the distal convoluted segment lacking completely. The epithelia of the proximal convoluted segment and the collecting duct are almost similar in structure to those of other teleosts. The lumen of the nephron in Ichthyocampus nox and Syngnathus schlegellii seems relatively narrower than those of other aglomerular teleosts. 3. In the most marine teleosts, the nephron of the kidney shows an abrupt morphological transition between the proximal convoluted segment and the collection duct, in these teleosts, the transition is gradual. 4. In Pterophryne hystrio and P. hystrio ranina, the projection and separation of the epithelia of the ureter were remarkably observed; these structures may be to do with excretion. 5. In Antennarius tridens, Pterophryne hystrio and P. hystrio ranina, the chromaffin cells are not only found on the wall of the cardinal veins in the kidney but also extend their branches towards the neighbouring tissue.
社団法人日本動物学会の論文
1958-11-15