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harvard university
ernst mayr library
museum of comparative zoology
fish
ichthyology
histoire naturelle des poissons (b&w plates 496-650)
zoology
microscopy
university of toronto - gerstein science information centre
memoirs of the museum of comparative zoölogy, at harvard college, cambridge, mass. v.42 (1915)
microscopy
zoology
microscopy
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microscopy
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scandinavia
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fossil
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ichthyology
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harvard university
moth
harvard university
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harvard university
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harvard university
moth
netherlands
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netherlands
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netherlands
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harvard university
moth
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