蛙における精巣卵の出現率

概要

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Using the adult males of Rana rugosa, Rana temporaria ornativentris, Rhacophorus schlegleii arborea and Hyla arborea japonica collected at Sado Island, the specific difference in the occurrence of testis-ova under field conditions was studied throughout the year. The left testes of these frogs were fixed in Bouin's solution, and observed histologically by the routine methods. In Rana rugosa, ova were found in eleven out of thirty-two frogs. In Hyla arborea japonica, ova were observed in twelve out of seventy-seven frogs. One ovum was found in one out of a hundred and eighteen frogs in Rona temporaria ornativentris, and none were observed in forty-eight specimens of Rhacophorus schlegelii arborea. The growth of ova in frog testes seems to begin simultaneously with the initiation of spermatogenesis.
社団法人日本動物学会の論文
1964-10-15