八腕類(頭足綱・軟体動物)2種の染色体について〔英文〕
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概要
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The chromosomes of two octopods, Octopus vulgaris (Lamarck) and O. variabilis Sasaki, were observed in male germ-cells. The chromosome number was found to be 28 (n) in both species. Morphologically there is a genearal similarity between the two in respect to the chromosomes. There is no evidence for the presence of a sex chromosome in the male.