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  1. By: Hoff, C. Clayton (Clarence Clayton), - Clawson, David L.
    Publication info: New York, American Museum of Natural History, [1952]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,7(76)  Arachnida  Classification  Ecology  Habitat  Nests  Pseudoscorpions  Rodents  Southwestern States