Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Journal of the Faculty of Science, Hokkaido University. Series 6, Zoology >
Vol. VIII, No. 1. >
The Reversible Asymmetry in the Opercula of Hydroides ezoensis : I. Observations on the Intact Opercula (With 3 Tables and 1 Textfigure)
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