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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Thomas, David L. (David Laurence)
    Type: Issue
    In: Biological notes
    Volume: 70
    Date: 1970
    Page Range: 1-18
    Publication Info: Urbana Illinois Natural History Survey 1933-1988
    Subjects: Darters (Fishes)  Fishes--Illinois
  2. By: Page, Lawrence M. - Smith, Philip W. (Philip Wayne),
    Type: Issue
    In: Biological notes
    Volume: 69
    Date: 1970
    Page Range: 1-15
    Publication Info: Urbana Illinois Natural History Survey 1933-1988
    Subjects: Darters (Fishes)  Fishes--Illinois