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  1. By: Frech, Fritz Daniel,
    Publication info: Berlin, In Commission bei der S. Schropp'schen Hof-Landkartenhandlung, 1891
    Holding Institution: University of Toronto - Robarts Library
  2. By: Frech, Fritz Daniel, - Milch, Ludwig,
    Publication info: 1892, 1894
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  3. By: Frech, Fritz Daniel, - Roemer, Ferdinand,
    Publication info: Stuttgart, E. Schweizerbart, 1876-
    Holding Institution: University of Toronto - Gerstein Science Information Centre