東京産トノサマガヘル(Rana nigromaculata)の數個の骨の相對成長に就て

概要

論文の詳細を見る
The rlative growth of the length and breadth of skull and the length of coracoid, humerus, radio-ulna, ilium, femur, tibio-fibula and calcaneum to the length of vertebral column is studied. 1. J. S. Huxley's relative growth equation y=bx^α can be applied here as in external and visceral organs. 2. The growth of coracoid (♂), skull (♂, ♀) and tibio-fibula (♀) is divided into two stages. In the other bones there are no such breaks. The inflection point of α value of coracoid and skull coincides with the point of sexual maturity, while the growth rate of tibio-fibula changes before the sexual maturity. Coracoid length and skull breadth increases its size at the inflection point abruptly. 3. It is noticeable that the α value is very near to 1.0, especially in bones of extremities, except skull. 4. The value of (breadth)/(length)×100 of skull is greater in the second stage than in the first.
社団法人日本動物学会の論文
1940-12-15