Opinion 1691 Polygyra Say, 1818 (Mollusca, Gastropoda): Polygyra septemvolva Say, 1818 designated as the type species, and Polygyridae Pilsbry, 1895 given precedence over Mesodontidae Try on, 1866

International Commission on Zoological Nomenclature

Published in Bulletin of Zoological Nomenclature, in 1992, in volume 49, pages 240-241

Date published:1992-09-30

BHL: 12231307
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