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  1. By: Ports, Mark A - Bradley, Peter V
    Type: Article
    In: The Great Basin naturalist
    Volume: 56
    Issue: 1
    Date: 1996
    Page Range: 48--53
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,
  2. By: Ports, Mark A - George, Sarah B.
    Type: Article
    In: The Great Basin naturalist
    Volume: 50
    Issue: 1
    Date: 1990
    Page Range: 93--95
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,