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By: May, H GType: ArticleIn: Proceedings of the United States National MuseumVolume: 58Series:Issue:Date: 1920Page Range: 577--588Publication Info: Washington Smithsonian Institution Press, [etc.]Subjects:
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By: May, H GType: ArticleIn: The Biological bulletinVolume: 33Series:Issue:Date: 1917-12-01Page Range: 361--395Publication Info: Woods Hole, Mass Marine Biological LaboratorySubjects: