ICZN. (1966). Opinion 769. Yoldia Möller, 1842, and Portlandia Mörch, 1857: Designation of type-species under the plenary powers. Bulletin of Zoological Nomenclature. 21 (2): 97-100.
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ICZN
1966
Opinion 769. Yoldia Möller, 1842, and Portlandia Mörch, 1857: Designation of type-species under the plenary powers