Now showing items 1-5 of 5
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Koelz, W. (University of Michigan Museum of Zoology, 1921)
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Koelz, W. (University of Michigan Museum of Zoology, 1925)
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Koelz, W. (University of Michigan Museum of Zoology, 1929)
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Van Tyne, J.; Koelz, W. (University of Michigan Museum of Zoology, 1936)
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Koelz, W. (University of Michigan Museum of Zoology, 1924)