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By: Penn, George Henry,Edition:Publication info: 1953Volume:Series:Holding Institution: American Museum of Natural History LibrarySubjects:BHL Collections:
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By: Penn, George Henry,Edition:Publication info: New York, American Museum of Natural History, [1953]Volume: no. 1636Series:Holding Institution: American Museum of Natural History LibrarySubjects:BHL Collections:
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By: Penn, George Henry,Type: ArticleIn: Proceedings of the Biological Society of WashingtonVolume: 76Series:Issue:Date: 1963Page Range: 121--125Publication Info: Washington Biological Society of WashingtonSubjects:
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By: Stone, Alan - Penn, George Henry,Type: ArticleIn: Journal of the Washington Academy of SciencesVolume: 37Series:Issue:Date: 1947Page Range: 89--91Publication Info: Washington [etc Washington Academy of Sciences]Subjects: