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  1. By: Chamberlin, Ralph V. (Ralph Vary), - Gertsch, Willis John,
    Publication info: New York City, The American Museum of Natural History, [1933]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.54,4G  Alberta  Arachnida  Classification  Gnaphosa antipola  Gnaphosa mima  Haplodrassus altanus  Haplodrassus magister  Minnesota  Spiders  West (U.S.)